December 12th

627
Battle at Nineveh: Byzantine Emperor Heraclius beats Sassanid forces during Byzantine-Sassanid War.
Byzantine–Sasanian wars
2015
COP21 climate change summit in Paris reaches a deal between 195 countries to limit the rise in the global average temperature to less than 2°C above pre-industrial levels.
2015 United Nations Climate Change Conference
2009
Houston became the largest U.S. city to elect an openly gay mayor, with voters handing a solid victory to City Controller Annise Parker.
LGBT culture in Houston
2003
Keiko, the killer whale made famous by the 'Free Willy' movies, died in a Norwegian fjord.
Keiko (orca)
2001
Yasir Arafat closed the offices of Hamas and Islamic Jihad.
Yasser Arafat
2000
The U.S. Supreme Court stopped the presidential election recount in Florida.
Bush v. Gore
1998
The House Judiciary Committee approved a fourth article of impeachment against President Bill Clinton and submitted the case to the full House.
Bill Clinton
1991
Maastricht Treaty signed to create a European Community.
Maastricht Treaty
1975
Sara Jane Moore pleaded guilty to trying to kill President Gerald R. Ford.
Sara Jane Moore
1969
Piazza Fontana bombing. A bomb exploded at the building of the National Agrarian Bank, Milan, Italy, killing 17 people and injuring 88.
Giuseppe Pinelli
1963
Kenya gained its independence from Britain.
History of Kenya
1947
The United Mine Workers union withdrew from the American Federation of Labor.
United Mine Workers
1946
UN accepts 6 Manhattan blocks as a gift from John D. Rockefeller Jr.
John D. Rockefeller Jr.
1925
The first motel, the Motel Inn, opened, in San Luis Obispo, Calif.
Motel Inn
1924
New York City Mayor Ed Koch was born in the Bronx.
Ed Koch
1917
Father Edward Flanagan founded Boys Town outside Omaha, Neb.
Edward J. Flanagan
1915
Singer Frank Sinatra was born in Hoboken, N.J.
Frank Sinatra
1914
The New York Stock Exchange re-opened for the first time since July 30. The market had shut down when World War I broke out.
New York Stock Exchange
1913
The Mona Lisa was recovered in Florence after having been stolen two years earlier (August 1911) from the Louvre.
Mona Lisa
1870
Joseph H. Rainey of South Carolina took his seat in the U.S. House of Representatives, becoming the first black congressman.
List of African-American firsts
1787
Pennsylvania becomes the second state to ratify the U.S. Constitution. It was the first of the larger states to vote to ratify the document.
List of U.S. states by date of admission to the Union
1745
John Jay, statesman and the first chief justice of the Supreme Court, was born in New York City.
File:John Jay (Gilbert Stuart portrait).jpg
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