The Grand Canyon becomes a national park, Michael Jackson's "Thriller" album hits No. 1, a truck bomb explodes under the World Trade Center, and teenager Trayvon Martin is shot and killed, all on this day.
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Library of Congress
1846: American frontiersman William "Buffalo Bill" Cody is born near Le Claire, Iowa. Cody, a soldier, buffalo hunter and showman, was one of the most colorful figures of the American Old West and became famous for the "Wild West" shows he organized with cowboy themes.