1876: “Wild Bill” Hickok, one of the greatest gunfighters of the American West, is murdered in Deadwood, South Dakota.
1958: The U.S. nuclear submarine Nautilus accomplishes the first undersea voyage, traveling nearly 1,000 miles under the Arctic ice cap, to the geographic North Pole.
1892: Andrew and Abby Borden, parents of Lizzie Borden, are found hacked to death in their Fall River, Massachusetts, home.
1962: Movie actress Marilyn Monroe is found dead in her home in Los Angeles.
1890: At Auburn Prison in New York, the first execution by electrocution in history is carried out against William Kemmler, who had been convicted of murdering his lover, Matilda Ziegler, with an axe.
1947: Kon-Tiki, a balsa wood raft captained by Norwegian anthropologist Thor Heyerdahl, completes a 4,300-mile, 101-day journey from Peru to Raroia in the Tuamotu Archipelago, near Tahiti.
1974: In an evening televised address, President Richard M. Nixon announces his intention to become the first president in American history to resign.