Portal:Pittsburgh/On this day/February 23

• (1775) Frontiersman Jacob Bausman is licensed by Virginia & the local Virginia judge to operate a ferry at Wood Street across the Monongahela River; he sees no reason to ask Pennsylvania for permission.
• (1769) After years of outlawing crossing the mountains, the colony relents and publishes ads in the Gazette announcing that land will be up for public sale in two months.
• (1954) First mass inoculation of the polio vaccine.
• (1973) Mylan Pharmaceuticals incorporates 3 years after Labs incorporate and 12 years after incorporating in Morgantown.
• (1974) The Panthers at Fitzgerald lose their chance at a school record-setting 23 straight wins as Penn State wins at the buzzer.
• (1979) The Pirates hold tryouts at Three Rivers for the brand new Pirate Parrot.
• (1982) Ten days after the cougar Tom-Tom mauls a 9-year-old boy & is shot to death, his trainer & handler go on trial at the courthouse.
• (1985) Pirates announcer Lanny Frattare calls the infamous Bob Knight chair-throwing game for ESPN.
• (1987) H.J. Heinz II, the last of the family to run the H.J. Heinz Company, and the grandson of the founder, dies.
• (1988) Panthers 1000^th game at St. John's.
• (1989) Mike Webster announces his retirement.
• (1996) Penguins stars Mario Lemieux & Jaromir Jagr both score their 50^th goals of the season.
• (1998) Native Brendan Eich helps found the Mozilla Foundation.
• (1999) North Side native and Duquesne alumnus Michael Hayden becomes Director of the National Security Agency, the longest serving NSA Director in history.
• (2000) Native Christina Aguilera wins best new artist at the Grammys.
• (2001) Penguins star Alexei Kovalev scores a hat trick against the Rangers at the Igloo, his 4^th.
• (2002) The newly redesigned convention center opens.

• (2011) FW DeClerk visits Pitt.