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On This Day in History: March 11
- In 843, the veneration of icons was officially reintroduced in the Hagia Sophia in Constantinople, marking an end to Byzantine iconoclasm.
- In 1708, Queen Anne withheld royal assent to the Scottish Militia Bill, the last time a British monarch vetoed a bill.
- In 1789, Benjamin Banneker and Pierre Charles L’Enfant began designing the layout of Washington D.C., which shaped the future U.S. capital.
- In 1862, Abraham Lincoln removed George McClellan as General-in-Chief of the U.S. Army, citing his cautious military strategy.
- In 1864, England’s worst man-made disaster, the Great Sheffield Flood, killed more than 250 people.
- In 1893, future tango icon Carlos Gardel and his mother, Berthe Gardès, emigrated to Buenos Aires, Argentina.
- In 1900, British Prime Minister Lord Salisbury rejected Boer leader Paul Kruger’s peace proposal, saying his terms were too favourable to the Boers.
- In 1912, in the first Stanley Cup game played over three 20-minute periods, Quebec defeated Moncton 9–3 to win the series.
- In 1922, the Vancouver Millionaires defeated the Regina Capitals two games to one to win the Western Hockey Championship.
- The first Golden Gloves boxing tournament was held in 1927, beginning a prestigious amateur competition.
- In 1930, the 27th US President and Chief Justice William Taft was buried at Arlington National Cemetery.
- In 1941 Bronko Nagurski regained the world wrestling title from Ray Steele in Minnesota, avenging his loss the previous year.
- In 1945, during World War II, 1,000 Allied bombers targeted Essen, dropping 4,662 tons of bombs.
- In 1958, an American B-47 aircraft accidentally dropped an atomic bomb (without a nuclear core) on a house in Mars Bluff, South Carolina, creating a 75-foot deep crater.
- In 1972, OPEC threatened sanctions against companies that refused to comply with member countries’ decisions, and claimed greater control over global oil policies.