March 11th

2012
Sixteen Afghan villagers – mostly women and children – were shot dead as they slept, allegedly by U.S. Army Staff Sgt. Robert Bales.
List of Indian massacres
2011
Japan is hit by an enormous earthquake that triggers a deadly 23-foot tsunami in the country's north, about 230 miles northeast of Tokyo. Cooling systems in one of the reactors at the Fukushima Daiichi Nuclear Power Station fail shortly after the earthquake, causing a nuclear crisis.
2011 Tōhoku earthquake and tsunami
2004
Ten bombs exploded in quick succession across the commuter rail network in Madrid, Spain, killing 191 people and wounding more than 2,000 in an attack linked to al-Qaida-inspired militants.
History of terrorism
2002
Two columns of light soared skyward from ground zero in New York as a temporary memorial to the victims six months after the Sept. 11 attacks.
Wikipedia:Featured article candidates/Archived nominations/March ...
1993
Janet Reno was unanimously confirmed by the Senate to be the nation's first female attorney general.
Nannygate
1990
Patricio Aylwin becomes Chile's first democratically elected president since the end of Augusto Pinochet's dictatorship. Pinochet had been in power since a CIA-backed coup d'état in 1973. Under his command, thousands of political opponents were interned, tortured, and killed.
Augusto Pinochet
1985
Mikhail Gorbachev became head of the Soviet Union following the death of Konstantin Chernenko. At 54, he was the youngest member of the ruling Politburo.
Mikhail Gorbachev
1942
General Douglas MacArthur leaves the Philippines saying, "I shall return.".
Douglas MacArthur's escape from the Philippines
1941
President Franklin D. Roosevelt signed into law the Lend-Lease Bill, providing war supplies to countries fighting the Axis.
Lend-Lease
1930
William Howard Taft became the first U.S. president to be buried in the National Cemetery in Arlington, Virginia.
President William Howard Taft
1918
Moscow becomes capital of revolutionary Russia.
Moscow
1888
A torrential rainstorm hit the East Coast. The rain turned to snow the next day and it became the Blizzard of 1888, the most famous snowstorm in American history. It caused more than 400 deaths.
Madagascar
1862
During the Civil War, President Abraham Lincoln removed Gen. George B. McClellan as general-in-chief of the Union armies.
George B. McClellan
1861
The Confederate States of America adopted its constitution.
Confederate States Constitution
1851
Giuseppe Verdi's opera, Rigoletto, receives its premiere. Rigoletto is one of the most popular operas of all time. The piece was premiered at the Teatro La Fenice in Venice, Italy.
Rigoletto
1502
Ismail I, founder of the Safavid dynasty, crowned Shah of Persia (rules till 1524).
Shah Ismail I
843
Icon veneration officially re-instated in Hagia Sophia Cathedral in Constantinople.
Byzantine Iconoclasm