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Ponce de Leon claim Florida for Spain
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The U.S. House of Representatives holds its first meeting.
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Some 300 American troops of the 6th Infantry leave Jefferson Barracks, St. Louis, to confront the Sauk Indians in what would become known as the Black Hawk War.
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The 17th Amendment was ratified, requiring the direct election of U.S. senators by popular vote rather than by the state legislators.
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The Works Progress Administration (WPA) was approved by Congress to help alleviate joblessness during the Great Depression.
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The League of Nations assembled for the last time
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Artist Pablo Picasso died
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Henry "Hank" Aaron hit the 715th home run of his career, breaking Babe Ruth's record.
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Actor Clint Eastwood was elected mayor of Carmel, California.
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Tennis ace Arthur Ashe announced that he had AIDS.