| On this date in: |
| 1642 | The Canadian city of Montreal was founded. |
| 1804 | The French Senate proclaimed Napoleon Bonaparte emperor. |
| 1860 | The Republican Party convention in Chicago nominated Abraham Lincoln for president. |
| 1896 | The Supreme Court endorsed the concept of "separate but equal" racial segregation in Plessy v. Ferguson, a precedent that was overturned in Brown v. Board of Education in 1954. |
| 1897 | A public reading of Bram Stoker's new novel "Dracula, or, The Un-dead" was staged in London. |
| 1911 | Composer Gustav Mahler died in Vienna, Austria, at age 50. |
| 1933 | The Tennessee Valley Authority was created. |
| 1951 | The United Nations moved out of its temporary headquarters in Lake Success, N.Y., for its permanent home in Manhattan. |
| 1969 | Apollo 10 was launched on a mission that served as a dress rehearsal for the first moon landing. |
| 1980 | The Mount St. Helens volcano in Washington state erupted, killing 57 people. |
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| AP Photo |
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| 1998 | The federal government filed a sweeping antitrust case against Microsoft Corp. |
| 2003 | "Les Miserables," the third-longest running show in Broadway history, closed after more than 16 years and 6,680 performances. |
| 2004 | Randy Johnson, 40, became the oldest pitcher in major league history to throw a perfect game, leading the Arizona Diamondbacks over the Atlanta Braves 2-0. |
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| AP Photo/John Bazemore |
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| 2009 | Sri Lanka's 25-year civil war ended with the government announcing it had defeated the Tamil Tiger rebels and killed their leader. |
| 2011 | Dominique Strauss-Kahn resigned as head of the International Monetary Fund, saying he wanted to devote all his energy to battling the sexual assault charges he faced in New York. (The charges were later dropped.) |