Iran

Not to be confused with Iraq.

For other uses, see Iran (disambiguation).

"Persia" redirects here. Not to be confused with Persis. For other uses, see Persia (disambiguation).

Islamic Republic of Iran جمهوری اسلامی ایران (Persian) Jomhuri-ye Eslâmi-ye Irân
Flag Emblem
Motto:  استقلال، آزادی، جمهوری اسلامی Esteqlâl, Âzâdi, Jomhuri-ye Eslâmi ("Independence, freedom, the Islamic Republic") (de facto)
Anthem: سرود ملی جمهوری اسلامی ایران Sorud-e Melli-ye Jomhuri-ye Eslâmi-ye Irân ("National Anthem of the Islamic Republic of Iran") File:Sorud-e Mellí-e Yomhurí-e Eslamí-e Irán (instrumental).oga
Capital and largest city		Tehran
Official languages		Persian
Recognised regional languages		List of languages 53% Persian 18% Azerbaijani and other Turkic dialects (incl. Qashqai, Turkmen) 10% Kurdish 7% Gilak and Mazanderani 6% Luri 2% Balochi 2% Arabic 2% other (incl. Armenian, Assyrian, Georgian, Laki, Semnani, Talysh, Tati)
Ethnic groups		List of ethnicities 61% Persian 16% Azerbaijani 10% Kurd 6% Lur (incl. Bakhtiari) 2% Turkmen and other Turkic peoples 2% Baloch 2% Arab 1% other
Religion		See Religion in Iran
Demonym		Iranian
Government		Unitary Khomeinist theocratic presidential Islamic republic
•	Supreme Leader	Ali Khamenei
•	President	Ebrahim Raisi
•	Vice President	Mohammad Mokhber
•	Parliament Speaker	Mohammad Bagher Ghalibaf
•	Chief Justice	Gholam-Hossein Mohseni-Eje'i
Legislature		Islamic Consultative Assembly
Establishment history
•	Median Empire	c. 678 BC
•	Achaemenid Empire	550 BC
•	Parthian Empire	247 BC
•	Sasanian Empire	224 AD
•	Buyid dynasty	934
•	Safavid Iran	1501
•	Afsharid dynasty	1736
•	Zand dynasty	1751
•	Qajar Iran	1796
•	Pahlavi Iran	15 December 1925
•	Islamic Revolution	11 February 1979
•	Current constitution	3 December 1979
Area
•	Total	1,648,195 km2 (17th) 636,372 sq mi
•	Water (%)	1.63 (as of 2015)
Population
•	2019 estimate	Neutral increase 83,183,741 (17th)
•	Density	48/km2 (162nd) 124/sq mi
GDP (PPP)		2022 estimate
•	Total	$1.573 trillion (21st)
•	Per capita	$18,332 (66th)
GDP (nominal)		2022 estimate
•	Total	$1.739 trillion (14th)
•	Per capita	$20,261 (78th)
Gini (2018)		42.0 medium
HDI (2019)		0.783 high · 70th
Currency		Iranian rial (ریال) (IRR)
Time zone		IRST (UTC+3:30)
•	Summer (DST)	IRDT (UTC+4:30)
Date format		yyyy/mm/dd (SH)
Drives on the		right
Calling code		+98
ISO 3166 code		IR
Internet TLD		.ir ایران.

Iran (Persian: ایران‎‎ Irân [ʔiːˈɾɒːn]), also called Persia, and officially the Islamic Republic of Iran, is a country in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmenistan to the north, by Afghanistan and Pakistan to the east, and by the Gulf of Oman and the Persian Gulf to the south. It covers an area of 1,648,195 km² (636,372 sq mi), making it the fourth-largest country entirely in Asia and the second-largest country in Western Asia behind Saudi Arabia. Iran has a population of 85 million, making it the 17th-most populous country in the world. Its capital and largest city is Tehran, followed by Mashhad, Isfahan, Karaj, Shiraz and Tabriz.

The country is home to one of the world's oldest civilizations, beginning with the formation of the Elamite kingdoms in the fourth millennium BC. It was first unified by the Medes, an ancient Iranian people, in the seventh century BC, and reached its territorial height in the sixth century BC, when Cyrus the Great founded the Achaemenid Persian Empire, which became one of the largest empires in history and has been described as the world's first effective superpower. The Achaemenid Empire fell to Alexander the Great in the fourth century BC and was subsequently divided into several Hellenistic states. An Iranian rebellion established the Parthian Empire in the third century BC, which was succeeded in the third century AD by the Sassanid Empire, a major world power for the next four centuries. Arab Muslims conquered the empire in the seventh century AD, which led to the Islamization of Iran. It subsequently became a major center of Islamic culture and learning, with its art, literature, philosophy, and architecture spreading across the Muslim world and beyond during the Islamic Golden Age. Over the next two centuries, a series of native Iranian Muslim dynasties emerged before the Seljuk Turks and the Mongols conquered the region. In the 15th century, the native Safavids re-established a unified Iranian state and national identity, and converted the country to Shia Islam. Under the reign of Nader Shah in the 18th century, Iran once again became a major world power, though by the 19th century, a series of conflicts with the Russian Empire led to significant territorial losses. The early 20th century saw the Persian Constitutional Revolution. Efforts to nationalize its fossil fuel supply from Western companies led to an Anglo-American coup in 1953, which resulted in greater autocratic rule under Mohammad Reza Pahlavi and growing Western political influence. He went on to launch a far-reaching series of reforms in 1963. After the Iranian Revolution, the current Islamic Republic was established in 1979 by Ruhollah Khomeini, who became the country's first Supreme Leader.

The government of Iran is an Islamic theocracy that includes elements of a presidential democracy, with the ultimate authority vested in an autocratic "Supreme Leader"; a position held by Ali Khamenei since Khomeini's death in 1989. The Iranian government is widely considered to be authoritarian, and has attracted widespread criticism for its significant constraints and abuses against human rights and civil liberties, including several violent suppressions of mass protests, unfair elections, and limited rights for women and for children. It is also a focal point for Shia Islam within the Middle East, countering the long-existing Arab and Sunni hegemony within the region. Since the Iranian Revolution, the country is widely considered to be the largest adversary of Israel and also of Saudi Arabia. Iran is also considered to be one of the biggest players within Middle Eastern affairs, with its government being involved both directly and indirectly in the majority of modern Middle Eastern conflicts.

Iran is a regional and middle power, with a geopolitically strategic location in the Asian continent. It is a founding member of the United Nations, the ECO, the OIC, and the OPEC. It has large reserves of fossil fuels—including the second-largest natural gas supply and the fourth-largest proven oil reserves. The country's rich cultural legacy is reflected in part by its 26 UNESCO World Heritage Sites. Historically a multinational state, Iran remains a pluralistic society comprising numerous ethnic, linguistic, and religious groups, with the largest of these being Persians, Azeris, Kurds, Mazandaranis, and Lurs.

Name

Main article: Name of Iran

Inscription of Ardeshir Babakan (r. 224–242) in Naqsh-e Rostam: "This is the figure of Mazdaworshiper, the lord Ardashir, Shahanshah of Iran..."

File:Coin of Nader Shah, minted in Shiraz.jpg

An Ashrafi Coin of Nader Shah (r. 1736–1747), reverse:"Coined on gold the word of kingdom in the world, Nader of Greater Iran and the world-conquerer king."

The term Iran derives directly from Middle Persian Ērān, first attested in a third-century inscription at Naqsh-e Rostam, with the accompanying Parthian inscription using the term Aryān, in reference to the Iranians. The Middle Iranian ērān and aryān are oblique plural forms of gentilic nouns ēr- (Middle Persian) and ary- (Parthian), both deriving from Proto-Iranian language *arya- (meaning "Aryan", i.e. "of the Iranians"), recognized as a derivative of Proto-Indo-European language *ar-yo-, meaning "one who assembles (skilfully)". In the Iranian languages, the gentilic is attested as a self-identifier, included in ancient inscriptions and the literature of the Avesta, and remains also in other Iranian ethnic names Alan (Ossetian: Ир Ir) and Iron (Ирон). According to the Iranian mythology, the country's name comes from the name of Iraj, a legendary prince and shah who was killed by his brothers. Historically, Iran has been referred to as Persia by the West, due mainly to the writings of Greek historians who referred to all of Iran as Persís (Ancient Greek: Περσίς; from Old Persian 𐎱𐎠𐎼𐎿 Pârsa), meaning "land of the Persians", while Persis itself was one of the provinces of ancient Iran that is today known as Fars. As the most extensive interaction the ancient Greeks had with any outsider was with the Persians, the term persisted, even long after the Greco-Persian Wars (499–449 BC).

In 1935, Reza Shah requested the international community to refer to the country by its native name, Iran, on Nowruz, falling on 21 March 1935; effective 22 March that year. Opposition to the name change led to the reversal of the decision in 1959, and Professor Ehsan Yarshater, editor of Encyclopædia Iranica, propagated a move to use Persia and Iran interchangeably. Today, both Iran and Persia are used in cultural contexts, while Iran remains irreplaceable in official state contexts.

Historical and cultural usage of the word Iran is not restricted to the modern state proper. "Greater Iran" (Irānzamīn or Irān e Bozorg) refers to territories of the Iranian cultural and linguistic zones. In addition to modern Iran, it includes portions of the Caucasus, Anatolia, Mesopotamia, Afghanistan, and Central Asia.

Pronunciation

The Persian pronunciation of Iran is [ʔiːˈɾɒːn]. Common Commonwealth English pronunciations of Iran are listed in the Oxford English Dictionary as /ɪˈrɑːn/ and /ɪˈræn/, while American English dictionaries such as Merriam-Webster's provide pronunciations which map to /ɪˈrɑːn, -ˈræn, aɪˈræn/, or likewise in Random House Webster's Unabridged Dictionary as /ɪˈræn, ɪˈrɑːn, aɪˈræn/. The Cambridge Dictionary lists /ɪˈrɑːn/ as the British pronunciation and /ɪˈræn/ as the American pronunciation. Similarly, Glasgow-based Collins English Dictionary provides both English English and American English pronunciations. The pronunciation guide from Voice of America also provides /ɪˈrɑːn/.

The American English pronunciation /aɪˈræn/ may be heard in U.S. media. Max Fisher in The Washington Post prescribed /iːˈrɑːn/ for Iran, while proscribing /aɪˈræn/. The American Heritage Dictionary of the English Language, in the dictionary's 2014 Usage Ballot, addressed the topic of the pronunciations of Iran and Iraq. According to this survey, the pronunciations /ɪˈrɑːn/ and /ɪˈræn/ were deemed almost equally acceptable, while /ɪˈrɑːn/ was preferred by most panelists participating in the ballot. With regard to the /aɪˈræn/ pronunciation, more than 70% of the panelists deemed it unacceptable. Among the reasons given by those panelists were that /aɪˈræn/ has "hawkish connotations" and sounds "angrier", "xenophobic", "ignorant", and "not ... cosmopolitan". The /aɪˈræn/ pronunciation remains standard and acceptable, reflected in the entry for Iran in the American Heritage Dictionary itself, as well as in each of the other major dictionaries of American English.

History

Main article: History of Iran

See also: Timeline of Iranian history

Prehistory

Further information: Prehistory of Iran and Archaeological sites in Iran

A cave painting in Doushe cave, Lorestan, from the 8th millennium BC

The earliest attested archaeological artifacts in Iran, like those excavated at Kashafrud and Ganj Par in northern Iran, confirm a human presence in Iran since the Lower Paleolithic. Iran's Neanderthal artifacts from the Middle Paleolithic have been found mainly in the Zagros region, at sites such as Warwasi and Yafteh. From the 10th to the seventh millennium BC, early agricultural communities began to flourish in and around the Zagros region in western Iran, including Chogha Golan, Chogha Bonut, and Chogha Mish.

The occupation of grouped hamlets in the area of Susa, as determined by radiocarbon dating, ranges from 4395–3955 to 3680–3490 BC. There are dozens of prehistoric sites across the Iranian Plateau, pointing to the existence of ancient cultures and urban settlements in the fourth millennium BC. During the Bronze Age, the territory of present-day Iran was home to several civilizations, including Elam, Jiroft, and Zayanderud. Elam, the most prominent of these civilizations, developed in the southwest alongside those in Mesopotamia, and continued its existence until the emergence of the Iranian empires. The advent of writing in Elam was paralleled to Sumer, and the Elamite cuneiform was developed since the third millennium BC.

From the 34th to the 20th century BC, northwestern Iran was part of the Kura-Araxes culture, which stretched into the neighboring Caucasus and Anatolia. Since the earliest second millennium BC, Assyrians settled in swaths of western Iran and incorporated the region into their territories.

Classical antiquity

Main articles: Median Empire, Achaemenid Empire, Seleucid Empire, Parthian Empire, and Sasanian Empire

See also: Indo-European migrations

A bas-relief at Persepolis, depicting the united Medes and Persians

By the second millennium BC, the ancient Iranian peoples arrived in what is now Iran from the Eurasian Steppe, rivaling the native settlers of the region. As the Iranians dispersed into the wider area of Greater Iran and beyond, the boundaries of modern-day Iran were dominated by Median, Persian, and Parthian tribes.

From the late 10th to the late seventh century BC, the Iranian peoples, together with the "pre-Iranian" kingdoms, fell under the domination of the Assyrian Empire, based in northern Mesopotamia. Under king Cyaxares, the Medes and Persians entered into an alliance with Babylonian ruler Nabopolassar, as well as the fellow Iranian Scythians and Cimmerians, and together they attacked the Assyrian Empire. The civil war ravaged the Assyrian Empire between 616 and 605 BC, thus freeing their respective peoples from three centuries of Assyrian rule. The unification of the Median tribes under king Deioces in 728 BC led to the foundation of the Median Empire which, by 612 BC, controlled almost the entire territory of present-day Iran and eastern Anatolia. This marked the end of the Kingdom of Urartu as well, which was subsequently conquered and dissolved.

File:Pasargad Tomb Cyrus3.jpg

Tomb of Cyrus the Great, founder of the Achaemenid Empire, in Pasargadae

In 550 BC, Cyrus the Great, the son of Mandane and Cambyses I, took over the Median Empire, and founded the Achaemenid Empire by unifying other city-states. The conquest of Media was a result of what is called the Persian Revolt. The brouhaha was initially triggered by the actions of the Median ruler Astyages, and was quickly spread to other provinces, as they allied with the Persians. Later conquests under Cyrus and his successors expanded the empire to include Lydia, Babylon, Egypt, parts of the Balkans and Eastern Europe proper, as well as the lands to the west of the Indus and Oxus rivers.

539 BC was the year in which Persian forces defeated the Babylonian army at Opis, and marked the end of around four centuries of Mesopotamian domination of the region by conquering the Neo-Babylonian Empire. Cyrus entered Babylon and presented himself as a traditional Mesopotamian monarch. Subsequent Achaemenid art and iconography reflect the influence of the new political reality in Mesopotamia.

The Achaemenid Empire (550 BC–330 BC) around the time of Darius the Great and Xerxes I

File:Map of the Parthian Empire under Mithridates II.svg

The Parthian Empire (247 BC–224 AD) in 94 BC at its greatest extent, during the reign of Mithridates II

At its greatest extent, the Achaemenid Empire included territories of modern-day Iran, Republic of Azerbaijan (Arran and Shirvan), Armenia, Georgia, Turkey (Anatolia), much of the Black Sea coastal regions, northeastern Greece and southern Bulgaria (Thrace), northern Greece and North Macedonia (Paeonia and Macedon), Iraq, Syria, Lebanon, Jordan, Israel and the Palestinian territories, all significant population centers of ancient Egypt as far west as Libya, Kuwait, northern Saudi Arabia, parts of the United Arab Emirates and Oman, Pakistan, Afghanistan, and much of Central Asia, making it the largest empire the world had yet seen.

It is estimated that in 480 BC, 50 million people lived in the Achaemenid Empire. The empire at its peak ruled over 44% of the world's population, the highest such figure for any empire in history.

The Achaemenid Empire is noted for the release of the Jewish exiles in Babylon, building infrastructures such as the Royal Road and the Chapar (postal service), and the use of an official language, Imperial Aramaic, throughout its territories. The empire had a centralized, bureaucratic administration under the emperor, a large professional army, and civil services, inspiring similar developments in later empires.

Eventual conflict on the western borders began with the Ionian Revolt, which erupted into the Greco-Persian Wars and continued through the first half of the fifth century BC, and ended with the withdrawal of the Achaemenids from all of the territories in the Balkans and Eastern Europe proper.

In 334 BC, Alexander the Great invaded the Achaemenid Empire, defeating the last Achaemenid emperor, Darius III, at the Battle of Issus. Following the premature death of Alexander, Iran came under the control of the Hellenistic Seleucid Empire. In the middle of the second century BC, the Parthian Empire rose to become the main power in Iran, and the century-long geopolitical arch-rivalry between the Romans and the Parthians began, culminating in the Roman–Parthian Wars. The Parthian Empire continued as a feudal monarchy for nearly five centuries, until 224 CE, when it was succeeded by the Sasanian Empire. Together with their neighboring arch-rival, the Roman-Byzantines, they made up the world's two most dominant powers at the time, for over four centuries.

The Sasanians established an empire within the frontiers achieved by the Achaemenids, with their capital at Ctesiphon. Late antiquity is considered one of Iran's most influential periods, as under the Sasanians their influence reached the culture of ancient Rome (and through that as far as Western Europe), Africa, China, and India, and played a prominent role in the formation of the medieval art of both Europe and Asia.

Most of the era of the Sasanian Empire was overshadowed by the Roman–Persian Wars, which raged on the western borders at Anatolia, the Western Caucasus, Mesopotamia, and the Levant, for over 700 years. These wars ultimately exhausted both the Romans and the Sasanians and led to the defeat of both by the Muslim invasion.

Throughout the Achaemenid, Parthian, and Sasanian eras, several offshoots of the Iranian dynasties established eponymous branches in Anatolia and the Caucasus, including the Pontic Kingdom, the Mihranids, and the Arsacid dynasties of Armenia, Iberia (Georgia), and Caucasian Albania (present-day Republic of Azerbaijan and southern Dagestan).

Medieval period

Main articles: Muslim conquest of Persia and Medieval Iran

The prolonged Byzantine–Sasanian wars, most importantly the climactic war of 602–628, as well as the social conflict within the Sasanian Empire, opened the way for an Arab invasion of Iran in the seventh century. The empire was initially defeated by the Rashidun Caliphate, which was succeeded by the Umayyad Caliphate, followed by the Abbasid Caliphate. A prolonged and gradual process of state-imposed Islamization followed, which targeted Iran's then Zoroastrian majority and included religious persecution, demolition of libraries and fire temples, a special tax penalty ("jizya"), and language shift.

In 750, the Abbasids overthrew the Umayyads. Arabs Muslims and Persians of all strata made up the rebel army, which was united by the converted Persian Muslim, Abu Muslim. In their struggle for power, the society in their times gradually became cosmopolitan and the old Arab simplicity and aristocratic dignity, bearing and prestige were lost. Persians and Turks began to replace the Arabs in most fields. The fusion of the Arab nobility with the subject races, the practice of polygamy and concubinage, made for a social amalgam wherein loyalties became uncertain and a hierarchy of officials emerged, a bureaucracy at first Persian and later Turkish which decreased Abbasid prestige and power for good.

After two centuries of Arab rule, semi-independent and independent Iranian kingdoms—including the Tahirids, Saffarids, Samanids, and Buyids—began to appear on the fringes of the declining Abbasid Caliphate.

Tomb of Hafez, a medieval Persian poet whose works are regarded as a pinnacle in Persian literature and have left a considerable mark on later Western writers, most notably Johann Wolfgang von Goethe, Henry David Thoreau, and Emerson

The blossoming literature, philosophy, mathematics, medicine, astronomy and art of Iran became major elements in the formation of a new age for the Iranian civilization, during a period known as the Islamic Golden Age. The Islamic Golden Age reached its peak by the 10th and 11th centuries, during which Iran was the main theater of scientific activities.

The cultural revival that began in the Abbasid period led to a resurfacing of the Iranian national identity; thus, the attempts of Arabization never succeeded in Iran. The Shu'ubiyya movement became a catalyst for Iranians to regain independence in their relations with the Arab invaders. The most notable effect of this movement was the continuation of the Persian language attested to the works of the epic poet Ferdowsi, now considered the most prominent figure in Iranian literature.

The 10th century saw a mass migration of Turkic tribes from Central Asia into the Iranian Plateau. Turkic tribesmen were first used in the Abbasid army as mamluks (slave-warriors), replacing Iranian and Arab elements within the army. As a result, the Mamluks gained significant political power. In 999, large portions of Iran came briefly under the rule of the Ghaznavids, whose rulers were of mamluk Turkic origin, and longer subsequently under the Seljuk and Khwarezmian empires. The Seljuks subsequently gave rise to the Sultanate of Rum in Anatolia, while taking their thoroughly Persianized identity with them. The result of the adoption and patronage of Persian culture by Turkish rulers was the development of a distinct Turco-Persian tradition.

From 1219 to 1221, under the Khwarazmian Empire, Iran suffered a devastating invasion by the Mongol Empire army of Genghis Khan. According to Steven R. Ward, "Mongol violence and depredations killed up to three-fourths of the population of the Iranian Plateau, possibly 10 to 15 million people. Some historians have estimated that Iran's population did not again reach its pre-Mongol levels until the mid-20th century." Most modern historians either outright dismiss or are highly skeptical of such statistics of colossal magnitude pertaining the Mongol onslaught on the Khwarazmian empire, mainland Iran and other Muslim regions and deem them to be exaggerations by Muslim chroniclers of that era (whose recordings were naturally of an anti-Mongol bent). Indeed, as far as the Iranian plateau was concerned the bulk of the Mongol onslaught and battles were in the north-east of what is modern day Iran. Such as the cities of Nishapur and Tus.

Following the fracture of the Mongol Empire in 1256, Hulagu Khan, grandson of Genghis Khan, established the Ilkhanate in Iran. In 1370, yet another conqueror, Timur, followed the example of Hulagu, establishing the Timurid Empire which lasted for another 156 years. In 1387, Timur ordered the complete massacre of Isfahan, reportedly killing 70,000 citizens. The Ilkhans and the Timurids soon came to adopt the ways and customs of the Iranians, surrounding themselves with a culture that was distinctively Iranian.

Early modern period

Safavids

Main article: Safavid Iran

File:Сефи 1й 1629-42.jpg

Venetian portrait, kept at the Uffizi, of Ismail I, the founder of the Safavid Empire

By the 1500s, Ismail I of Ardabil established the Safavid Empire, with his capital at Tabriz. Beginning with Azerbaijan, he subsequently extended his authority over all of the Iranian territories, and established an intermittent Iranian hegemony over the vast relative regions, reasserting the Iranian identity within large parts of Greater Iran. Iran was predominantly Sunni, but Ismail instigated a forced conversion to the Shia branch of Islam, spreading throughout the Safavid territories in the Caucasus, Iran, Anatolia, and Mesopotamia. As a result, modern-day Iran is the only official Shia nation of the world, with it holding an absolute majority in Iran and the Republic of Azerbaijan, having there the first and the second highest number of Shia inhabitants by population percentage in the world. Meanwhile, the centuries-long geopolitical and ideological rivalry between Safavid Iran and the neighboring Ottoman Empire led to numerous Ottoman–Iranian wars.

File:Portrait of Safavid ruler Abbas I.jpg

A portrait of Abbas I, the powerful, pragmatic Safavid ruler who reinforced Iran's military, political, and economic power

The Safavid era peaked in the reign of Abbas I (1587–1629), surpassing their Turkish archrivals in strength, and making Iran a leading science and art hub in western Eurasia. The Safavid era saw the start of mass integration from Caucasian populations into new layers of the society of Iran, as well as mass resettlement of them within the heartlands of Iran, playing a pivotal role in the history of Iran for centuries onwards. Following a gradual decline in the late 1600s and the early 1700s, which was caused by internal conflicts, the continuous wars with the Ottomans, and the foreign interference (most notably the Russian interference), the Safavid rule was ended by the Pashtun rebels who besieged Isfahan and defeated Sultan Husayn in 1722.

Afsharids

Main article: Afsharid dynasty

In 1729, Nader Shah, a chieftain and military genius from Khorasan, successfully drove out and conquered the Pashtun invaders. He subsequently took back the annexed Caucasian territories which were divided among the Ottoman and Russian authorities by the ongoing chaos in Iran. During the reign of Nader Shah, Iran reached its greatest extent since the Sasanian Empire, reestablishing the Iranian hegemony all over the Caucasus, as well as other major parts of the west and central Asia, and briefly possessing what was arguably the most powerful empire at the time.

File:Mooze Naderi.jpg

Statue of Nader Shah, the first Afsharid ruler of Iran, at his Tomb

Nader Shah invaded India and sacked far off Delhi by the late 1730s. His territorial expansion, as well as his military successes, went into a decline following the final campaigns in the Northern Caucasus against then revolting Lezgins. The assassination of Nader Shah sparked a brief period of civil war and turmoil, after which Karim Khan of the Zand dynasty came to power in 1750, bringing a period of relative peace and prosperity.

Zands

Main article: Zand dynasty

Compared to its preceding dynasties, the geopolitical reach of the Zand dynasty was limited. Many of the Iranian territories in the Caucasus gained de facto autonomy, and were locally ruled through various Caucasian khanates. However, despite the self-ruling, they all remained subjects and vassals to the Zand king. Another civil war ensued after the death of Karim Khan in 1779, out of which Agha Mohammad Khan emerged, founding the Qajar dynasty in 1794.

Qajars

Main article: Qajar Iran

In 1795, following the disobedience of the Georgian subjects and their alliance with the Russians, the Qajars captured Tbilisi by the Battle of Krtsanisi, and drove the Russians out of the entire Caucasus, reestablishing the Iranian suzerainty over the region.

A map showing the 19th-century northwestern borders of Iran, comprising modern-day eastern Georgia, Dagestan, Armenia, and the Republic of Azerbaijan, before being ceded to the neighboring Russian Empire by the Russo-Iranian wars

The Russo-Iranian wars of 1804–1813 and 1826–1828 resulted in large irrevocable territorial losses for Iran in the Caucasus, comprising all of the South Caucasus and Dagestan, which made part of the very concept of Iran for centuries, and thus substantial gains for the neighboring Russian Empire.

As a result of the 19th-century Russo-Iranian wars, the Russians took over the Caucasus, and Iran irrevocably lost control over its integral territories in the region (comprising modern-day Dagestan, Georgia, Armenia, and Republic of Azerbaijan), which got confirmed per the treaties of Gulistan and Turkmenchay. The area to the north of Aras River, among which the contemporary Republic of Azerbaijan, eastern Georgia, Dagestan, and Armenia are located, were Iranian territory until they were occupied by Russia in the course of the 19th century.

As Iran shrank, many South Caucasian and North Caucasian Muslims moved towards Iran, especially until the aftermath of the Circassian Genocide, and the decades afterwards, while Iran's Armenians were encouraged to settle in the newly incorporated Russian territories, causing significant demographic shifts.

Around 1.5 million people—20 to 25% of the population of Iran—died as a result of the Great Famine of 1870–1872.

The first national Iranian Parliament was established in 1906 during the Persian Constitutional Revolution

Between 1872 and 1905, a series of protests took place in response to the sale of concessions to foreigners by Qajar monarchs Naser-ed-Din and Mozaffar-ed-Din, and led to the Constitutional Revolution in 1905. The first Iranian constitution and the first national parliament of Iran were founded in 1906, through the ongoing revolution. The Constitution included the official recognition of Iran's three religious minorities, namely Christians, Jews, and Zoroastrians, which has remained a basis in the legislation of Iran since then. The struggle related to the constitutional movement was followed by the Triumph of Tehran in 1909, when Mohammad Ali Shah was defeated and forced to abdicate. On the pretext of restoring order, the Russians occupied northern Iran in 1911 and maintained a military presence in the region for years to come. But this did not put an end to the civil uprisings and was soon followed by Mirza Kuchik Khan's Jungle Movement against both the Qajar monarchy and foreign invaders.

File:Reza-shah.jpg

Reza Shah, the first Pahlavi king of Iran, in military uniform

Despite Iran's neutrality during World War I, the Ottoman, Russian and British empires occupied the territory of western Iran and fought the Persian Campaign before fully withdrawing their forces in 1921. At least 2 million Persian civilians died either directly in the fighting, the Ottoman perpetrated anti-Christian genocides or the war-induced famine of 1917-1919. A large number of Iranian Assyrian and Iranian Armenian Christians, as well as those Muslims who tried to protect them, were victims of mass murders committed by the invading Ottoman troops, notably in and around Khoy, Maku, Salmas, and Urmia.

Apart from the rule of Agha Mohammad Khan, the Qajar rule is characterized as a century of misrule. The inability of Qajar Iran's government to maintain the country's sovereignty during and immediately after World War I led to the British directed 1921 Persian coup d'état and Reza Shah's establishment of the Pahlavi dynasty. Reza Shah, became the new Prime Minister of Iran and was declared the new monarch in 1925.

Pahlavis

Main article: Pahlavi Iran

See also: Anglo-Soviet invasion of Iran

In the midst of World War II, in June 1941, Nazi Germany broke the Molotov–Ribbentrop Pact and invaded the Soviet Union, Iran's northern neighbor. The Soviets quickly allied themselves with the Allied countries and in July and August, 1941 the British demanded that the Iranian government expel all Germans from Iran. Reza Shah refused to expel the Germans and on 25 August 1941, the British and Soviets launched a surprise invasion and Reza Shah's government quickly surrendered. The invasion's strategic purpose was to secure a supply line to the USSR (later named the Persian Corridor), secure the oil fields and Abadan Refinery (of the UK-owned Anglo-Iranian Oil Company), prevent a German advance via Turkey or the USSR on Baku's oil fields, and limit German influence in Iran. Following the invasion, on 16 September 1941 Reza Shah abdicated and was replaced by Mohammad Reza Pahlavi, his 21-year-old son.

The Allied "Big Three" at the 1943 Tehran Conference.

During the rest of World War II, Iran became a major conduit for British and American aid to the Soviet Union and an avenue through which over 120,000 Polish refugees and Polish Armed Forces fled the Axis advance. At the 1943 Tehran Conference, the Allied "Big Three"—Joseph Stalin, Franklin D. Roosevelt, and Winston Churchill—issued the Tehran Declaration to guarantee the post-war independence and boundaries of Iran. However, at the end of the war, Soviet troops remained in Iran and established two puppet states in north-western Iran, namely the People's Government of Azerbaijan and the Republic of Mahabad. This led to the Iran crisis of 1946, one of the first confrontations of the Cold War, which ended after oil concessions were promised to the USSR and Soviet forces withdrew from Iran proper in May 1946. The two puppet states were soon overthrown and the oil concessions were later revoked.

1951–1978: Mosaddegh, Mohammad Reza Pahlavi

Main article: 1953 Iranian coup d'état

File:Mohammad Pahlavi Coronation (cropped version).jpg

Mohammad Reza Pahlavi and the Imperial Family during the coronation ceremony of the Shah of Iran in 1967.

In 1951, Mohammad Mosaddegh was appointed as the Prime Minister of Pahlavi Iran. After the nationalization of the Iran's oil industry, he became enormously popular. He was deposed in the 1953 Iranian coup d'état, an Anglo-American covert operation that marked the first time the United States had participated in an overthrow of a foreign government during the Cold War.

After the coup, the Shah became increasingly autocratic and sultanistic, and Iran entered a decades-long phase of controversially close relations with the United States and some other foreign governments. While the Shah increasingly modernized Iran and claimed to retain it as a fully secular state, arbitrary arrests and torture by his secret police, the SAVAK, were used to crush all forms of political opposition.

Ruhollah Khomeini, a radical Muslim cleric, became an active critic of the Shah's far-reaching series of reforms known as the White Revolution. Khomeini publicly denounced the government, and was arrested and imprisoned for 18 months. After his release in 1964, he refused to apologize, and was eventually sent into exile.

Due to the 1973 spike in oil prices, the economy of Iran was flooded with foreign currency, which caused inflation. By 1974, the economy of Iran was experiencing a double digit inflation rate, and despite the many large projects to modernize the country, corruption was rampant and caused large amounts of waste. By 1975 and 1976, an economic recession led to an increased unemployment rate, especially among millions of youths who had migrated to the cities of Iran looking for construction jobs during the boom years of the early 1970s. By the late 1970s, many of these people opposed the Shah's regime and began to organize and join the protests against it.

After the 1979 Iranian Revolution

Main article: History of the Islamic Republic of Iran

See also: Iranian Revolution, Iran–Iraq War, and Human rights in the Islamic Republic of Iran

Ruhollah Khomeini's return to Iran on 1 February 1979

The 1979 Revolution, later known as the Islamic Revolution, began in January 1978 with the first major demonstrations against the Shah. After a year of strikes and demonstrations paralyzing the country and its economy, Mohammad Reza Pahlavi fled to the United States, and Ruhollah Khomeini returned from exile to Tehran in February 1979, forming a new government. After holding a referendum, Iran officially became an Islamic republic in April 1979. A second referendum in December 1979 approved a theocratic constitution.

The immediate nationwide uprisings against the new government began with the 1979 Kurdish rebellion and the Khuzestan uprisings, along with the uprisings in Sistan and Baluchestan and other areas. Over the next several years, these uprisings were subdued in a violent manner by the new Islamic government. The new government began purging itself of the non-Islamist political opposition, as well as of those Islamists who were not considered radical enough. Although both nationalists and Marxists had initially joined with Islamists to overthrow the Shah, tens of thousands were executed by the new regime afterwards. Following Khomeini's order to purge the new government of any remaining officials still loyal to the exiled Shah, many former ministers and officials in the Shah's government, including former prime minister Amir-Abbas Hoveyda, were executed.

On 4 November 1979, after the United States refusal for the extradition of Mohammad Reza Pahlavi to the new government, a group of Muslim students seized the United States Embassy and took the embassy with 52 personnel and citizens hostage . Attempts by the Jimmy Carter administration to negotiate for the release of the hostages, and a failed rescue attempt, helped with the falling popularity of Carter among the US citizens and it pushed him out of the presidential office and brought Ronald Reagan to power. On Jimmy Carter's final day in office, the last hostages were finally set free as a result of the Algiers Accords. Mohammad Reza Pahlavi left the United States for Egypt, where he died of complications from cancer only months later, on 27 July 1980.

The Cultural Revolution began in 1980, with an initial closure of universities for three years, in order to perform an inspection and clean up in the cultural policy of the education and training system.

An Iranian soldier wearing a gas mask on the front-line during the Iran–Iraq War

On 22 September 1980, the Iraqi army invaded the western Iranian province of Khuzestan, initiating the Iran–Iraq War. Although the forces of Saddam Hussein made several early advances, by mid 1982, the Iranian forces successfully managed to drive the Iraqi army back into Iraq. In July 1982, with Iraq thrown on the defensive, the regime of Iran took the decision to invade Iraq and conducted countless offensives in a bid to conquer Iraqi territory and capture cities, such as Basra. The war continued until 1988 when the Iraqi army defeated the Iranian forces inside Iraq and pushed the remaining Iranian troops back across the border. Subsequently, Khomeini accepted a truce mediated by the United Nations. The total Iranian casualties in the war were estimated to be 123,220–160,000 KIA, 60,711 MIA, and 11,000–16,000 civilians killed.

The Green Movement's Silent Demonstration during the 2009–10 Iranian election protests

Following the Iran–Iraq War, in 1989, Akbar Hashemi Rafsanjani and his administration concentrated on a pragmatic pro-business policy of rebuilding and strengthening the economy without making any dramatic break with the ideology of the revolution. In 1997, Rafsanjani was succeeded by moderate reformist Mohammad Khatami, whose government attempted, unsuccessfully, to make the country more free and democratic.

The 2005 presidential election brought conservative populist candidate, Mahmoud Ahmadinejad, to power. By the time of the 2009 Iranian presidential election, the Interior Ministry announced incumbent President Ahmadinejad had won 62.63% of the vote, while Mir-Hossein Mousavi had come in second place with 33.75%. The election results were widely disputed, and resulted in widespread protests, both within Iran and in major cities outside the country, and the creation of the Iranian Green Movement.

Hassan Rouhani was elected as the president on 15 June 2013, defeating Mohammad Bagher Ghalibaf and four other candidates. The electoral victory of Rouhani relatively improved the relations of Iran with other countries.

File:Protests in Tehran by Fars News 03.jpg

The 2017–18 Iranian protests were initiated on 31 December 2017 and continued for months.

The 2017–18 Iranian protests swept across the country against the government and its longtime Supreme Leader in response to the economic and political situation. The scale of protests throughout the country and the number of people participating were significant, and it was formally confirmed that thousands of protesters were arrested. The 2019–20 Iranian protests started on 15 November in Ahvaz, spreading across the country within hours, after the government announced increases in the fuel price of up to 300%. A week-long total Internet shutdown throughout the country marked one of the most severe Internet blackouts in any country, and in the bloodiest governmental crackdown of the protestors in the history of Islamic Republic, tens of thousands were arrested and hundreds were killed within a few days according to multiple international observers, including Amnesty International.

On 3 January 2020, the revolutionary guard's general, Qasem Soleimani, was assassinated by the United States in Iraq, which considerably heightened the existing tensions between the two countries. Three days after, Iran's Islamic Revolutionary Guard Corps launched a retaliatory attack on US forces in Iraq and by accident shot down Ukraine International Airlines Flight 752, killing 176 civilians and leading to nation-wide protests. An international investigation led to the government admitting to the shootdown of the plane by a surface-to-air missile after three days of denial, calling it a "human error".

Geography

Main article: Geography of Iran

See also: Borders of Iran, Agriculture in Iran, and Environmental issues in Iran

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Mount Damavand, Iran's highest point, is located in Amol, Mazenderan.

Iran has an area of 1,648,195 km² (636,372 sq mi). It lies between latitudes 24° and 40° N, and longitudes 44° and 64° E. It is bordered to the northwest by Armenia (35 km or 22 mi), the Azeri exclave of Nakhchivan (179 km or 111 mi), and the Republic of Azerbaijan (611 km or 380 mi); to the north by the Caspian Sea; to the northeast by Turkmenistan (992 km or 616 mi); to the east by Afghanistan (936 km or 582 mi) and Pakistan (909 km or 565 mi); to the south by the Persian Gulf and the Gulf of Oman; and to the west by Iraq (1,458 km or 906 mi) and Turkey (499 km or 310 mi).

Iran located in seismically active area. On average every 10 years one 7 Richter earthquake occurs in Iran. Most earthquakes are shallow-focus and can be very devastating like the tragic 2003 Bam earthquake.

Climate

File:Koppen-Geiger Map IRN present.svg

Climate map of Iran (Köppen-Geiger)

Hot desert climate   Cold desert climate   Hot semi-arid climate   Cold semi-arid climate   Hot-summer Mediterranean climate   Continental Mediterranean climate

Having 11 climates out of the world's 13, Iran's climate is diverse, ranging from arid and semi-arid, to subtropical along the Caspian coast and the northern forests. On the northern edge of the country (the Caspian coastal plain), temperatures rarely fall below freezing and the area remains humid for the rest of the year. Summer temperatures rarely exceed 29 °C (84.2 °F). Annual precipitation is 680 mm (26.8 in) in the eastern part of the plain and more than 1,700 mm (66.9 in) in the western part. Gary Lewis, the United Nations Resident Coordinator for Iran, has said that "Water scarcity poses the most severe human security challenge in Iran today".

To the west, settlements in the Zagros basin experience lower temperatures, severe winters with below zero average daily temperatures and heavy snowfall. The eastern and central basins are arid, with less than 200 mm (7.9 in) of rain, and have occasional deserts. Average summer temperatures rarely exceed 38 °C (100.4 °F). The coastal plains of the Persian Gulf and Gulf of Oman in southern Iran have mild winters, and very humid and hot summers. The annual precipitation ranges from 135 to 355 mm (5.3 to 14.0 in).

Despite climate change in the region, Iran is by far the largest of the few countries in the world which have not ratified the Paris Agreement.

Habitats

Iran consists of the Iranian Plateau, with the exception of the coasts of the Caspian Sea and Khuzestan. It is one of the world's most mountainous countries, its landscape dominated by rugged mountain ranges that separate various basins or plateaux from one another. The populous western part is the most mountainous, with ranges such as the Caucasus, Zagros, and Alborz, the last containing Mount Damavand, Iran's highest point at 5,610 m (18,406 ft), which is also the highest mountain in Asia west of the Hindu Kush.

The northern part of Iran is covered by the lush lowland Caspian Hyrcanian mixed forests, located near the southern shores of the Caspian Sea. The eastern part consists mostly of desert basins, such as the Kavir Desert, which is the country's largest desert, and the Lut Desert, as well as some salt lakes. Iran had a 2019 Forest Landscape Integrity Index mean score of 7.67/10, ranking it 34th globally out of 172 countries.

The only large plains are found along the coast of the Caspian Sea and at the northern end of the Persian Gulf, where the country borders the mouth of the Arvand river. Smaller, discontinuous plains are found along the remaining coast of the Persian Gulf, the Strait of Hormuz, and the Gulf of Oman.

Wildlife

See also: Wildlife of Iran

Persian leopard, listed as Endangered on the IUCN Red List.

The wildlife of Iran includes bears, the Eurasian lynx, foxes, gazelles, gray wolves, jackals, panthers, and wild pigs. Domestic animals include Asian water buffaloes, camels, cattle, donkeys, goats, horses, and sheep. Eagles, falcons, partridges, pheasants, and storks are also native to Iran.

One of the most famous species of animal is the critically endangered Asiatic cheetah, also known as the Iranian cheetah, whose numbers were greatly reduced after the 1979 Revolution. The Persian leopard, which is the world's largest leopard subspecies and lives primarily in northern Iran, is also endangered. Iran lost all its Asiatic lions and the now extinct Caspian tigers by the earlier part of the 20th century.

At least 74 species of Iranian wildlife are on the red list of the International Union for Conservation of Nature, a sign of serious threats against the country's biodiversity. The Iranian Parliament has been showing disregard for wildlife by passing laws and regulations such as the act that lets the Ministry of Industries and Mines exploit mines without the involvement of the Department of Environment, and by approving large national development projects without demanding comprehensive study of their impact on wildlife habitats.

Administrative divisions

Main articles: Regions of Iran, Provinces of Iran, and Counties of Iran

See also: List of Iranian cities by population

Alborz Ardabil Bushehr Chaharmahal and Bakhtiari Isfahan Fars Gilan Golestan Hamadan Hormozgan Ilam Kerman Kermanshah Khuzestan Kohgiluyeh and Boyer-Ahmad Kurdistan Luristan Markazi Mazandaran Qazvin Qom Razavi Khorasan Semnan Sistan and Baluchestan Tehran Yazd Zanjan North Khorasan South Khorasan West Azerbaijan East Azerbaijan Caspian Sea Persian Gulf Turkmenistan Afghanistan Pakistan Azerbaijan Armenia T u r k e y Iraq Kuwait Saudi Arabia

Iran is divided into five regions with thirty-one provinces (ostān), each governed by an appointed governor (ostāndār). The provinces are divided into counties (šahrestān), and subdivided into districts (baxš) and sub-districts (dehestān).

The country has one of the highest urban growth rates in the world. From 1950 to 2002, the urban proportion of the population increased from 27% to 60%. Most internal migrants have settled around the cities of Tehran, Isfahan, Ahvaz, and Qom. The listed populations are from the 2006/07 (1385 AP) census.

Iran's most populated cities (2010)

Tehran, with a population of around 8.8 million (2016 census), is the capital and largest city of Iran. It is an economical and cultural center, and is the hub of the country's communication and transport network.

The country's second most populous city, Mashhad, has a population of around 3.3 million (2016 census), and is capital of the province of Razavi Khorasan. Being the site of the Imam Reza Shrine, it is a holy city in Shia Islam. About 15 to 20 million pilgrims visit the shrine every year.

Isfahan has a population of around 2.2 million (2016 census), and is Iran's third most populous city. It is the capital of the province of Isfahan, and was also the third capital of the Safavid Empire. It is home to a wide variety of historical sites, including the famous Shah Square, Siosepol, and the churches at the Armenian district of New Julfa. It is also home to the world's seventh largest shopping mall, Isfahan City Center.

The fourth most populous city of Iran, Karaj, has a population of around 1.9 million (2016 census). It is the capital of the province of Alborz, and is situated 20 km west of Tehran, at the foot of the Alborz mountain range. It is a major industrial city in Iran, with large factories producing sugar, textiles, wire, and alcohol.

With a population of around 1.7 million (2016 census), Tabriz is the fifth most populous city of Iran, and had been the second most populous until the late 1960s. It was the first capital of the Safavid Empire, and is now the capital of the province of East Azerbaijan. It is also considered the country's second major industrial city (after Tehran).

Shiraz, with a population of around 1.8 million (2016 census), is Iran's sixth most populous city. It is the capital of the province of Fars, and was also the capital of Iran under the reign of the Zand dynasty. It is located near the ruins of Persepolis and Pasargadae, two of the four capitals of the Achaemenid Empire.

Largest cities or towns in Iran Statistical Center of Iran: Results of national census, 2012
	Rank	Name	Province	Pop.	Rank	Name	Province	Pop.
Tehran Mashhad	1	Tehran	Tehran	8,244,759	11	Rasht	Gilan	622,209	Karaj Isfahan
	2	Mashhad	Razavi Khorasan	2,772,287	12	Zahedan	Sistan and Baluchestan	575,116
	3	Karaj	Alborz	1,967,005	13	Yazd	Yazd	550,904
	4	Isfahan	Isfahan	1,755,382	14	Hamadan	Hamadan	548,378
	5	Shiraz	Fars	1,549,453	15	Arak	Markazi	536,572
	6	Tabriz	East Azarbaijan	1,545,491	16	Kerman	Kerman	534,441
	7	Ahwaz	Khuzestan	1,133,003	17	Ardabil	Ardabil	485,153
	8	Qom	Qom	1,095,871	18	Bandar Abbas	Hormozgan	448,861
	9	Kermanshah	Kermanshah	857,048	19	Eslamshahr	Tehran	389,102
	10	Urmia	West Azarbaijan	680,228	20	Zanjan	Zanjan	388,796

Government and politics

Main article: Politics of Iran

Iran's syncretic political system combines elements of an Islamic theocracy with vetted democracy.

The political system of the Islamic Republic is based on the 1979 Constitution.

Supreme Leader

Ali Khamenei, the Supreme Leader of Iran, meeting with his counterpart, China's paramount leader Xi Jinping on 23 January 2016. Iran and China are strategic allies.

The Leader of the Revolution ("Supreme Leader") is responsible for delineation and supervision of the policies of the Islamic Republic of Iran. The Iranian president has limited power compared to the Supreme Leader Khamenei. The current longtime Supreme Leader, Ali Khamenei, has been issuing decrees and making the final decisions on the economy, environment, foreign policy, education, national planning, and everything else in the country. Khamenei also outlines elections guidelines and urges for the transparency, and has fired and reinstated presidential cabinet appointments. Key ministers are selected with the Supreme Leader Ali Khamenei's agreement and he has the ultimate say on Iran's foreign policy. The president-elect is required to gain the Leader Khamenei's official approval before being sworn in before the Parliament (Majlis). Through this process, known as Tanfiz (validation), the Leader agrees to the outcome of the presidential election. The Supreme Leader is directly involved in ministerial appointments for Defense, Intelligence and Foreign Affairs, as well as other top ministries after submission of candidates from the president. Iran's regional policy is directly controlled by the office of the Supreme Leader with the Ministry of Foreign Affairs' task limited to protocol and ceremonial occasions. All of Iran's ambassadors to Arab countries, for example, are chosen by the Quds Corps, which directly reports to the Supreme Leader. The budget bill for every year, as well as withdrawing money from the National Development Fund of Iran, require Supreme Leader Ali Khamenei's approval and permission. The Supreme Leader Khamenei can and did order laws to be amended. Setad, estimated at $95 billion in 2013 by the Reuters, accounts of which are secret even to the Iranian parliament, is controlled only by the Supreme Leader.

File:Ali Khamenei voting in the 2017 Presidential election20.jpg

Ali Khamenei voting in the 2017 presidential election

The Supreme Leader is the commander-in-chief of the armed forces, controls the military intelligence and security operations, and has sole power to declare war or peace. The heads of the judiciary, the state radio and television networks, the commanders of the police and military forces, and six of the twelve members of the Guardian Council are directly appointed by the Supreme Leader.

The Assembly of Experts is responsible for electing the Supreme Leader, and has the power to dismiss him on the basis of qualifications and popular esteem. To date, the Assembly of Experts has not challenged any of the Supreme Leader's decisions, nor has it attempted to dismiss him. The previous head of the judicial system, Sadeq Larijani, appointed by the Supreme Leader, said that it is illegal for the Assembly of Experts to supervise the Supreme Leader. Due to Khamenei's very longtime unchallenged rule, many believe the Assembly of Experts has become a ceremonial body without any real power. There have been instances when the current Supreme Leader publicly criticized members of the Assembly of Experts, resulting in their arrest and dismissal. For example, Khamenei publicly called then-member of the Assembly of Experts Ahmad Azari Qomi a traitor, resulting in Qomi's arrest and eventual dismissal from the Assembly of Experts. Another instance is when Khamenei indirectly called Akbar Hashemi Rafsanjani a traitor for a statement he made, causing Rafsanjani to retract it.

Guardian Council

Presidential candidates and parliamentary candidates must be approved by the Guardian Council (all members of which are directly or indirectly appointed by the Leader) or the Leader before running, in order to ensure their allegiance to the Supreme Leader. The Leader very rarely does the vetting himself directly, but has the power to do so, in which case additional approval of the Guardian Council would not be needed. The Leader can also revert the decisions of the Guardian Council. The Guardian Council can, and has dismissed some elected members of the Iranian parliament in the past. For example, Minoo Khaleghi was disqualified by Guardian Council even after winning election, as she had been photographed in a meeting without wearing headscarf.

President

Iranian former President Hassan Rouhani meeting with Russian President Vladimir Putin. Iran and Russia are strategic allies.

After the Supreme Leader, the Constitution defines the President of Iran as the highest state authority. The President is elected by universal suffrage for a term of four years, however, the president is still required to gain the Leader's official approval before being sworn in before the Parliament (Majlis). The Leader also has the power to dismiss the elected president anytime. The President can only be re-elected for one term.

The President is responsible for the implementation of the constitution, and for the exercise of executive powers in implementing the decrees and general policies as outlined by the Supreme Leader, except for matters directly related to the Supreme Leader, who has the final say in all matters. Unlike the executive in other countries, the President of Iran does not have full control over anything, as these are ultimately under the control of the Supreme Leader. Chapter IX of the Constitution of the Islamic Republic of Iran sets forth the qualifications for presidential candidates. The procedures for presidential election and all other elections in Iran are outlined by the Supreme Leader. The President functions as the executive of affairs such as signing treaties and other international agreements, and administering national planning, budget, and state employment affairs, all as approved by the Supreme Leader.

The President appoints the ministers, subject to the approval of the Parliament, as well as the approval of the Supreme Leader, who can dismiss or reinstate any of the ministers at any time, regardless of the decisions made by the President or the Parliament. The President supervises the Council of Ministers, coordinates government decisions, and selects government policies to be placed before the legislature. The current Supreme Leader, Ali Khamenei, has fired as well as reinstated Council of Ministers members. Eight Vice Presidents serve under the President, as well as a cabinet of twenty-two ministers, who must all be approved by the legislature.

Legislature

File:Iranian Majlis.jpg

The Islamic Consultative Assembly, also known as the Iranian Parliament

The legislature of Iran, known as the Islamic Consultative Assembly, is a unicameral body comprising 290 members elected for four-year terms. It drafts legislation, ratifies international treaties, and approves the national budget. All parliamentary candidates and all legislation from the assembly must be approved by the Guardian Council.

The Guardian Council comprises twelve jurists, including six appointed by the Supreme Leader. Others are elected by the Parliament, from among the jurists nominated by the Head of the Judiciary. The Council interprets the constitution and may veto the Parliament. If a law is deemed incompatible with the constitution or Sharia (Islamic law), it is referred back to the Parliament for revision. The Expediency Council has the authority to mediate disputes between the Parliament and the Guardian Council, and serves as an advisory body to the Supreme Leader, making it one of the most powerful governing bodies in the country. Local city councils are elected by public vote to four-year terms in all cities and villages of Iran.

Law

Main article: Judicial system of the Islamic Republic of Iran

The Supreme Leader appoints the head of the country's judiciary, who in turn appoints the head of the Supreme Court and the chief public prosecutor. There are several types of courts, including public courts that deal with civil and criminal cases, and revolutionary courts which deal with certain categories of offenses, such as crimes against national security. The decisions of the revolutionary courts are final and cannot be appealed.

The Chief Justice of Iran is the head of the Judicial system of the Islamic Republic of Iran and is responsible for its administration and supervision. He is also the highest judge of the Supreme Court of Iran. The Supreme Leader of Iran appoints and can dismiss the Chief Justice. The Chief Justice nominates some candidates for serving as minister of justice and then the President select one of them. The Chief Justice can serve for two five-year terms.

The Special Clerical Court handles crimes allegedly committed by clerics, although it has also taken on cases involving laypeople. The Special Clerical Court functions independently of the regular judicial framework, and is accountable only to the Supreme Leader. The Court's rulings are final and cannot be appealed. The Assembly of Experts, which meets for one week annually, comprises 86 "virtuous and learned" clerics elected by adult suffrage for eight-year terms.

Foreign relations

Main article: Foreign relations of Iran

File:Iran–Saudi Arabia proxy conflict.png

     Major Iran–Saudi Arabia proxy conflict locations

Since the time of the 1979 Revolution, Iran's foreign relations have often been portrayed as being based on two strategic principles; eliminating outside influences in the region, and pursuing extensive diplomatic contacts with developing and non-aligned countries.

Since 2005, Iran's nuclear program has become the subject of contention with the international community, mainly the United States. Many countries have expressed concern that Iran's nuclear program could divert civilian nuclear technology into a weapons program. This has led the United Nations Security Council to impose sanctions against Iran which had further isolated Iran politically and economically from the rest of the global community. In 2009, the U.S. Director of National Intelligence said that Iran, if choosing to, would not be able to develop a nuclear weapon until 2013.

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Protest against U.S. recognition of Jerusalem as capital of Israel. Tehran, 11 December 2017.

As of 2009, the government of Iran maintains diplomatic relations with 99 members of the United Nations, but not with the United States, and not with Israel—a state which Iran's government has derecognized since the 1979 Revolution. Among Muslim nations, Iran has an adversarial relationship with Saudi Arabia due to different political and Islamic ideologies. While Iran is a Shia Islamic Republic, Saudi Arabia is a conservative Sunni monarchy. Regarding the Israeli–Palestinian conflict, the government of Iran has recognized Jerusalem as the capital of the State of Palestine, after Trump recognized Jerusalem as the capital of Israel.

Since the 2000s, Iran's controversial nuclear program has raised concerns, which is part of the basis of the international sanctions against the country. On 14 July 2015, Tehran and the P5+1 came to a historic agreement (Joint Comprehensive Plan of Action) to end economic sanctions in exchange for Iran's restriction in producing enriched uranium after demonstrating a peaceful nuclear research project that would meet the International Atomic Energy Agency standards.

Iran is a member of dozens of international organizations, including the G-15, G-24, G-77, IAEA, IBRD, IDA, IDB, IFC, ILO, IMF, IMO, Interpol, OIC, OPEC, WHO, and the United Nations, and currently has observer status at the World Trade Organization.

On the 17th September 2021 Iran begin the processes of becoming a full member of the Shanghai Cooperation Organization (SCO), a Eurasian political, economic, and security alliance.

Military

Main article: Armed Forces of the Islamic Republic of Iran

See also: Iranian involvement in the Syrian Civil War

File:Bavar Missile by Tasnimnews.jpg

Sophisticated indigenous long range missile system Bavar-373 paraded in Tehran.

The Islamic Republic of Iran has two types of armed forces: the regular forces of the Army, the Air Force, and the Navy, and the Revolutionary Guards, totaling about 545,000 active troops. Iran also has around 350,000 Reserve Force, totaling around 900,000 trained troops.

The government of Iran has a paramilitary, volunteer militia force within the Islamic Revolutionary Guard Corps, called the Basij, which includes about 90,000 full-time, active-duty uniformed members. Up to 11 million men and women are members of the Basij who could potentially be called up for service. GlobalSecurity.org estimates Iran could mobilize "up to one million men", which would be among the largest troop mobilizations in the world. In 2007, Iran's military spending represented 2.6% of the GDP or $102 per capita, the lowest figure of the Persian Gulf nations. Iran's military doctrine is based on deterrence. In 2014, the country spent $15 billion on arms, while the states of the Gulf Cooperation Council spent eight times more.

The government of Iran supports the military activities of its allies in Syria, Iraq, and Lebanon (Hezbollah) with military and financial aid. Iran and Syria are close strategic allies, and Iran has provided significant support for the Syrian Government in the Syrian Civil War. According to some estimates, Iran controlled over 80,000 pro-Assad Shi'ite fighters in Syria.

Since the 1979 Revolution, to overcome foreign embargoes, the government of Iran has developed its own military industry, produced its own tanks, armored personnel carriers, missiles, submarines, military vessels, missile destroyer, radar systems, helicopters, and fighter planes. In recent years, official announcements have highlighted the development of weapons such as the Hoot, Kowsar, Zelzal, Fateh-110, Shahab-3, Sejjil, and a variety of unmanned aerial vehicles (UAVs). Iran has the largest and most diverse ballistic missile arsenal in the Middle East. The Fajr-3, a liquid fuel missile with an undisclosed range which was developed and produced domestically, is currently the most advanced ballistic missile of the country.

In June 1925, Reza Shah introduced conscription law at National Consultative Majlis. At that time every male person who had reached 21 years old must serve for military for two years. The conscription exempted women from military service after 1979 revolution. Iranian constitution obliges all men of 18 years old and higher to serve in military or police bases. They cannot leave the country or be employed without completion of the service period. The period varies from 18 to 24 months.

Human rights

Main articles: Human rights in Iran and Human rights in the Islamic Republic of Iran

According to international reports, Iran's human rights record is exceptionally poor. The regime in Iran is undemocratic, has frequently persecuted and arrested critics of the government and its Supreme Leader, and severely restricts the participation of candidates in popular elections as well as other forms of political activity. Women's rights in Iran are described as seriously inadequate, and children's rights have been severely violated, with more child offenders being executed in Iran than in any other country in the world. Sexual activity between members of the same sex is illegal and is punishable by up to death.

Over the past decade, numbers of anti-government protests have broken out throughout Iran (such as the 2019–20 Iranian protests), demanding reforms or the end to the Islamic Republic. However, the IRGC and police often suppressed mass protests by violent means, which resulted in thousands of protesters killed.

In January 2021, Iranian authorities added Signal to the list of blocked social media platforms, which included Facebook, Telegram, Twitter and YouTube. They carried out arbitrary arrests for social media postings deemed “counter-revolutionary” or “un-Islamic”.

Economy

Main article: Economy of Iran

See also: Iranian subsidy reform plan, Banking and insurance in Iran, Transport in Iran, and Communications in Iran

Iran's provinces by their contribution to national GDP (2014)

File:GPD per capita development of Iran.jpg

Historical GDP per capita development

File:Iran Product Exports (2019).svg

A proportional representation of Iran exports, 2019

Iran's economy is a mixture of central planning, state ownership of oil and other large enterprises, village agriculture, and small-scale private trading and service ventures. In 2017, GDP was $427.7 billion ($1.631 trillion at PPP), or $20,000 at PPP per capita. Iran is ranked as an lower-middle income economy by the World Bank. In the early 21st century, the service sector contributed the largest percentage of the GDP, followed by industry (mining and manufacturing) and agriculture.

The Central Bank of the Islamic Republic of Iran is responsible for developing and maintaining the Iranian rial, which serves as the country's currency. The government does not recognize trade unions other than the Islamic labour councils, which are subject to the approval of employers and the security services. The minimum wage in June 2013 was 487 million rials a month ($134). Unemployment has remained above 10% since 1997, and the unemployment rate for women is almost double that of the men.

In 2006, about 45% of the government's budget came from oil and natural gas revenues, and 31% came from taxes and fees. As of 2007, Iran had earned $70 billion in foreign-exchange reserves, mostly (80%) from crude oil exports. Iranian budget deficits have been a chronic problem, mostly due to large-scale state subsidies, that include foodstuffs and especially gasoline, totaling more than $84 billion in 2008 for the energy sector alone. In 2010, the economic reform plan was approved by parliament to cut subsidies gradually and replace them with targeted social assistance. The objective is to move towards free market prices in a five-year period and increase productivity and social justice.

The administration continues to follow the market reform plans of the previous one, and indicates that it will diversify Iran's oil-reliant economy. Iran has also developed a biotechnology, nanotechnology, and pharmaceutical industry. However, nationalized industries such as the bonyads have often been managed badly, making them ineffective and uncompetitive with years. Currently, the government is trying to privatize these industries, and, despite successes, there are still several problems to be overcome, such as the lagging corruption in the public sector and lack of competitiveness.

Iran has leading manufacturing industries in the fields of automobile manufacture, transportation, construction materials, home appliances, food and agricultural goods, armaments, pharmaceuticals, information technology, and petrochemicals in the Middle East. According to the 2012 data from the Food and Agriculture Organization, Iran has been among the world's top five producers of apricots, cherries, sour cherries, cucumbers and gherkins, dates, eggplants, figs, pistachios, quinces, walnuts, and watermelons.

Economic sanctions against Iran, such as the embargo against Iranian crude oil, have injured the economy. In 2015, Iran and the P5+1 reached a deal on the nuclear program that removed the main sanctions pertaining to Iran's nuclear program by 2016. According to the BBC, renewed U.S. sanctions against Iran "have led to a sharp downturn in Iran's economy, pushing the value of its currency to record lows, quadrupling its annual inflation rate, driving away foreign investors, and triggering protests."

Tourism

Main article: Tourism in Iran

File:Kish beach 02.jpg

More than a million tourists visit Kish Island each year.

Although tourism declined significantly during the war with Iraq, it has been subsequently recovered. About 1,659,000 foreign tourists visited Iran in 2004, and 2.3 million in 2009, mostly from Asian countries, including the republics of Central Asia, while about 10% came from the European Union and North America. Since the removal of some sanctions against Iran in 2015, tourism has re-surged in the country. Over five million tourists visited Iran in the fiscal year of 2014–2015, four percent more than the previous year.

Alongside the capital, the most popular tourist destinations are Isfahan, Mashhad, and Shiraz. In the early 2000s, the industry faced serious limitations in infrastructure, communications, industry standards, and personnel training. The majority of the 300,000 travel visas granted in 2003 were obtained by Asian Muslims, who presumably intended to visit pilgrimage sites in Mashhad and Qom. Several organized tours from Germany, France, and other European countries come to Iran annually to visit archaeological sites and monuments. In 2003, Iran ranked 68th in tourism revenues worldwide. According to the UNESCO and the deputy head of research for Iran's Tourism Organization, Iran is rated fourth among the top 10 destinations in the Middle East. Domestic tourism in Iran is one of the largest in the world. Weak advertising, unstable regional conditions, a poor public image in some parts of the world, and absence of efficient planning schemes in the tourism sector have all hindered the growth of tourism.

Transportation

Main article: Transport in Iran

Iran has a long paved road system linking most of its towns and all of its cities. In 2011 the country had 173,000 kilometers (107,000 mi) of roads, of which 73% were paved. In 2008 there were nearly 100 passenger cars for every 1,000 inhabitants.

Trains operate on 11,106 km (6,942 mi) of railroad track. The country's major port of entry is Bandar-Abbas on the Strait of Hormuz. After arriving in Iran, imported goods are distributed throughout the country by trucks and freight trains. The Tehran–Bandar-Abbas railroad, opened in 1995, connects Bandar-Abbas to the railroad system of Central Asia via Tehran and Mashhad. Other major ports include Bandar e-Anzali and Bandar e-Torkeman on the Caspian Sea and Khorramshahr and Bandar-e Emam Khomeyni on the Persian Gulf.

Dozens of cities have airports that serve passenger and cargo planes. Iran Air, the national airline, was founded in 1962 and operates domestic and international flights. All large cities have mass transit systems using buses, and several private companies provide bus service between cities.

Transport in Iran is inexpensive because of the government's subsidization of the price of gasoline. The downside is a huge draw on government coffers, economic inefficiency because of highly wasteful consumption patterns, smuggling to neighboring countries and air pollution. In 2008, more than one million people worked in the transportation sector, accounting for 9% of GDP.

Energy

Main articles: Energy in Iran, Petroleum industry in Iran, Nuclear program of Iran, and Foreign direct investment in Iran

Iran holds 10% of the world's proven oil reserves and 15% of its gas. It is OPEC's second largest exporter and the world's 7th largest oil producer.

Iran has the world's second largest proved gas reserves after Russia, with 33.6 trillion cubic meters, and the third largest natural gas production after Indonesia and Russia. It also ranks fourth in oil reserves with an estimated 153,600,000,000 barrels. It is OPEC's second largest oil exporter, and is an energy superpower. In 2005, Iran spent US$4 billion on fuel imports, because of contraband and inefficient domestic use. Oil industry output averaged 4 million barrels per day (640,000 m³/d) in 2005, compared with the peak of six million barrels per day reached in 1974. In the early 2000s, industry infrastructure was increasingly inefficient because of technological lags. Few exploratory wells were drilled in 2005.

In 2004, a large share of Iran's natural gas reserves were untapped. The addition of new hydroelectric stations and the streamlining of conventional coal and oil-fired stations increased installed capacity to 33,000 megawatts. Of that amount, about 75% was based on natural gas, 18% on oil, and 7% on hydroelectric power. In 2004, Iran opened its first wind-powered and geothermal plants, and the first solar thermal plant was to come online in 2009. Iran is the world's third country to have developed GTL technology.

Demographic trends and intensified industrialization have caused electric power demand to grow by 8% per year. The government's goal of 53,000 megawatts of installed capacity by 2010 is to be reached by bringing on line new gas-fired plants, and adding hydropower and nuclear power generation capacity. Iran's first nuclear power plant at Bushire went online in 2011. It is the second nuclear power plant ever built in the Middle East after the Metsamor Nuclear Power Plant in Armenia.

Education, science and technology

Main articles: Education in Iran and Science and technology in Iran

File:UIS Literacy Rate Iran population plus 15 1975-2015.png

Literacy rate of Iran's population plus 15, 1975–2015, according to UNESCO Institute of Statistics

Education in Iran is highly centralized. K–12 is supervised by the Ministry of Education, and higher education is under the supervision of the Ministry of Science and Technology. According to Fars News Agency, the adult literacy rated 93.0% in September 2015, while according to UNESCO it had rated 85.0% in 2008 (up from 36.5% in 1976).

According to the data provided by UNESCO, Iran's literacy rate among people aged 15 years and older was 85.54% as of 2016, with men (90.35%) being significantly more educated than women (80.79%), with the number of illiterate people of the same age amounting to around 8,700,000 of the country's 85 million population. According to this report, Iranian government's expenditure on education amounts to around 4% of the GDP.

The requirement to enter into higher education is to have a high school diploma and pass the Iranian University Entrance Exam (officially known as konkur (کنکور)), which is the equivalent of the SAT and ACT exams of the United States. Many students do a 1–2-year course of pre-university (piš-dānešgāh), which is the equivalent of the GCE A-levels and the International Baccalaureate. The completion of the pre-university course earns students the Pre-University Certificate.

Sharif University of Technology is one of Iran's most prestigious higher education institutions.

Iran's higher education is sanctioned by different levels of diplomas, including an associate degree (kārdāni; also known as fowq e diplom) delivered in two years, a bachelor's degree (kāršenāsi; also known as lisāns) delivered in four years, and a master's degree (kāršenāsi e aršad) delivered in two years, after which another exam allows the candidate to pursue a doctoral program (PhD; known as doktorā).

According to the Webometrics Ranking of World Universities (as of January 2017), Iran's top five universities include Tehran University of Medical Sciences (478th worldwide), the University of Tehran (514th worldwide), Sharif University of Technology (605th worldwide), Amirkabir University of Technology (726th worldwide), and the Tarbiat Modares University (789th worldwide). Iran was ranked 60th in the Global Innovation Index in 2021, up from 67th in 2020.

Iran has increased its publication output nearly tenfold from 1996 through 2004, and has been ranked first in terms of output growth rate, followed by China. According to a study by SCImago in 2012, Iran would rank fourth in the world in terms of research output by 2018, if the current trend persists.

The production line for AryoSeven at the Iranian biopharmaceutical company of AryoGen

In 2009, a SUSE Linux-based HPC system made by the Aerospace Research Institute of Iran (ARI) was launched with 32 cores, and now runs 96 cores. Its performance was pegged at 192 GFLOPS. The Iranian humanoid robot Sorena 2, which was designed by engineers at the University of Tehran, was unveiled in 2010. The Institute of Electrical and Electronics Engineers (IEEE) has placed the name of Surena among the five prominent robots of the world after analyzing its performance.

In the biomedical sciences, Iran's Institute of Biochemistry and Biophysics has a UNESCO chair in biology. In late 2006, Iranian scientists successfully cloned a sheep by somatic cell nuclear transfer, at the Royan Research Center in Tehran.

According to a study by David Morrison and Ali Khadem Hosseini (Harvard-MIT and Cambridge), stem cell research in Iran is amongst the top 10 in the world. Iran ranks 15th in the world in nanotechnologies.

File:سیمرغ - افتتاح پایگاه ملی فضایی امام خمینی(ره) (2).jpg

Simorgh launch, Iranian Space Agency

Iran placed its domestically built satellite Omid into orbit on the 30th anniversary of the 1979 Revolution, on 2 February 2009, through its first expendable launch vehicle Safir, becoming the ninth country in the world capable of both producing a satellite and sending it into space from a domestically made launcher.

The Iranian nuclear program was launched in the 1950s. Iran is the seventh country to produce uranium hexafluoride, and controls the entire nuclear fuel cycle.

Iranian scientists outside Iran have also made some major contributions to science. In 1960, Ali Javan co-invented the first gas laser, and fuzzy set theory was introduced by Lotfi A. Zadeh. Iranian cardiologist Tofigh Mussivand invented and developed the first artificial cardiac pump, the precursor of the artificial heart Furthering research and treatment of diabetes, the HbA1c was discovered by Samuel Rahbar. A substantial number of papers in string theory are published in Iran. Iranian American string theorist Cumrun Vafa proposed the Vafa–Witten theorem together with Edward Witten. In August 2014, Iranian mathematician Maryam Mirzakhani became the first woman, as well as the first Iranian, to receive the Fields Medal, the highest prize in mathematics.

Demographics

Main article: Demographics of Iran

See also: Healthcare in Iran

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Population of Iranian provinces and counties in 2021.

File:Iran Population (1880-2016).jpg

Iran's population growth (1880–2016)

Iran is a diverse country, consisting of numerous ethnic and linguistic groups that are unified through a shared Iranian nationality.

Iran's population grew rapidly during the latter half of the 20th century, increasing from about 19 million in 1956 to more than 84 million by July 2020. However, Iran's fertility rate has dropped significantly in recent years, coming down from a fertility rate of 6.5 per woman to just a little more than 2 two decades later, leading to a population growth rate of about 1.39% as of 2018. Due to its young population, studies project that the growth will continue to slow until it stabilizes around 105 million by 2050.

Iran hosts one of the largest refugee populations in the world, with almost one million refugees, mostly from Afghanistan and Iraq. Since 2006, Iranian officials have been working with the UNHCR and Afghan officials for their repatriation. According to estimates, about five million Iranian citizens have emigrated to other countries, mostly since the 1979 Revolution.

According to the Iranian Constitution, the government is required to provide every citizen of the country with access to social security, covering retirement, unemployment, old age, disability, accidents, calamities, health and medical treatment and care services. This is covered by tax revenues and income derived from public contributions.

Languages

Main article: Languages of Iran

The majority of the population speak Persian, which is also the official language of the country. Others include speakers of a number of other Iranian languages within the greater Indo-European family, and languages belonging to some other ethnicities living in Iran.

In northern Iran, mostly confined to Gilan and Mazenderan, the Gilaki and Mazenderani languages are widely spoken, both having affinities to the neighboring Caucasian languages. In parts of Gilan, the Talysh language is also widely spoken, which stretches up to the neighboring Republic of Azerbaijan. Varieties of Kurdish are widely spoken in the province of Kurdistan and nearby areas. In Khuzestan, several distinct varieties of Persian are spoken. Luri and Lari are also spoken in southern Iran.

Azerbaijani, which is by far the most spoken language in the country after Persian, as well as a number of other Turkic languages and dialects, is spoken in various regions of Iran, especially in the region of Azerbaijan.

Notable minority languages in Iran include Armenian, Georgian, Neo-Aramaic, and Arabic. Khuzi Arabic is spoken by the Arabs in Khuzestan, as well as the wider group of Iranian Arabs. Circassian was also once widely spoken by the large Circassian minority, but, due to assimilation over the many years, no sizable number of Circassians speak the language anymore.

Percentages of spoken language continue to be a point of debate, as many opt that they are politically motivated; most notably regarding the largest and second largest ethnicities in Iran, the Persians and Azerbaijanis. Percentages given by the CIA's World Factbook include 53% Persian, 16% Azerbaijani, 10% Kurdish, 7% Mazenderani and Gilaki, 7% Luri, 2% Turkmen, 2% Balochi, 2% Arabic, and 2% the remainder Armenian, Georgian, Neo-Aramaic, and Circassian.

Ethnic groups

Main article: Ethnicities in Iran

Iran's provinces by population density (2013)

As with the spoken languages, the ethnic group composition also remains a point of debate, mainly regarding the largest and second largest ethnic groups, the Persians and Azerbaijanis, due to the lack of Iranian state censuses based on ethnicity. The CIA's World Factbook has estimated that around 79% of the population of Iran are a diverse Indo-European ethno-linguistic group that comprise speakers of various Iranian languages, with Persians (including Mazenderanis and Gilaks) constituting 61% of the population, Kurds 10%, Lurs 6%, and Balochs 2%. Peoples of other ethno-linguistic groups make up the remaining 21%, with Azerbaijanis constituting 16%, Arabs 2%, Turkmens and other Turkic tribes 2%, and others (such as Armenians, Talysh, Georgians, Circassians, Assyrians) 1%.

The Library of Congress issued slightly different estimates: 65% Persians (including Mazenderanis, Gilaks, and the Talysh), 16% Azerbaijanis, 7% Kurds, 6% Lurs, 2% Baloch, 1% Turkic tribal groups (incl. Qashqai and Turkmens), and non-Iranian, non-Turkic groups (incl. Armenians, Georgians, Assyrians, Circassians, and Arabs) less than 3%. It determined that Persian is the first language of at least 65% of the country's population, and is the second language for most of the remaining 35%.

Religion

Main articles: Religion in Iran and Irreligion in Iran

See also: Islamization of Iran

Iranian people by religion,
2011 General Census Results

Religion	Percent	Number
Muslim	99.3989% (90–95% Shia)	74,682,938
Christian	0.1566%	117,704
Zoroastrian	0.0336%	25,271
Jewish	0.0117%	8,756
Other	0.0653%	49,101
Undeclared	0.3538%	205,317

Twelver Shia Islam is the official state religion, to which about 90% to 95% of the population adhere. About 4% to 8% of the population are Sunni Muslims, mainly Kurds and Baloches. The remaining 2% are non-Muslim religious minorities, including Christians, Zoroastrians, Jews, Baháʼís, Mandeans, and Yarsanis.

A 2020 survey by the World Values Survey found that 96.6% of Iranians believe in Islam. On the other hand, another 2020 survey conducted online by an organization based outside of Iran found a much smaller percentage of Iranians identifying as Muslim (32.2% as Shia, 5.0% as Sunni, and 3.2% as Sufi), and a significant fraction not identifying with any organized religion (22.2% identifying as "None," and some others identifying as atheists, spiritual, agnostics, and secular humanists). According to the CIA World Factbook, around 90–95% of Iranian Muslims associate themselves with the Shia branch of Islam, the official state religion, and about 5–10% with the Sunni and Sufi branches of Islam.

There are a large population of adherents of Yarsanism, a Kurdish indigenous religion, making it the largest (unrecognized) minority religion in Iran. Its followers are mainly Gorani Kurds and certain groups of Lurs. They are based in Kurdistan Province, Kermanshah Province and Lorestan mainly.

Christianity, Judaism, Zoroastrianism, and the Sunni branch of Islam are officially recognized by the government, and have reserved seats in the Iranian Parliament. Historically, early Iranian religions such as the Proto-Iranic religion and the subsequent Zoroastrianism and Manichaeism were the dominant religions in Iran, particularly during the Median, Achaemenid, Parthian, and Sasanian eras. This changed after the fall of the Sasanian Empire by the centuries-long Islamization that followed the Muslim Conquest of Iran. Iran was predominantly Sunni until the conversion of the country (as well as the people of what is today the neighboring Republic of Azerbaijan) to Shia Islam by the order of the Safavid dynasty in the 16th century.

Judaism has a long history in Iran, dating back to the Achaemenid conquest of Babylonia. Although many left in the wake of the establishment of the State of Israel and the 1979 Revolution, about 8,756 to 25,000 Jewish people live in Iran. Iran has the largest Jewish population in the Middle East outside of Israel.

Around 250,000 to 370,000 Christians reside in Iran, and Christianity is the country's largest recognized minority religion. Most are of Armenian background, as well as a sizable minority of Assyrians. A large number of Iranians have converted to Christianity from the predominant Shia Islam.

The Baháʼí Faith is not officially recognized and has been subject to official persecution. According to the United Nations Special Rapporteur on Human Rights in Iran, Baháʼís are the largest non-Muslim religious minority in Iran, with an estimated 350,000 adherents. Since the 1979 Revolution, the persecution of Baháʼís has increased with executions and denial of civil rights, especially the denial of access to higher education and employment.