1866: Lucy B. Hobbs became the first woman to graduate from a dental school, the Ohio College of Dental Surgery in Cincinnati.

1885: Washington Monument dedicated.

1925: The New Yorker magazine debuted.

1965: Malcolm X assassinated.

1973: Israeli fighter planes shoot down a Libyan Airlines jet over the Sinai Desert, killing more than 100 people.

1975: Former Attorney General John N. Mitchell and former White House aides H.R. Haldeman and John D. Ehrlichman were sentenced for their roles in the Watergate cover-up. Another Nixon official, Robert C. Mardian, was also sentenced. The following year, the charges against Mardian were dismissed. Haldeman and Ehrlichman each served 18 months in prison. Mitchell served 19 months before being released on parole.

1965: Former Black Muslim leader Malcolm X, 39, was shot to death in New York by assassins identified as Black Muslims.

1991: Iraq agrees to a proposal to end Persian Gulf War, according to the USSR.

2001: Foot-and-mouth disease in British cattle leads to ban on British meat.

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