1379 - The Gelderse war ended.
1545 - German Parliament opened in Worms.
1550 - France and England signed the Peace of Boulogne.
1792 - Benjamin West became the first American artist to be selected president of the Royal Academy of London.
1837 - Canada gave blacks the right to vote
1882 - In Berlin, German scientist Robert Koch announced the discovery of the tuberculosis germ (bacillus).
1898 - The first automobile was sold.
1906 - The "Census of the British Empire" revealed that England ruled 1/5 of the world.
1924 - Greece became a republic.
1946 - The Soviet Union announced that it was withdrawing its troops from Iran.
1972 - Great Britain imposed direct rule over Northern Ireland.
1985 - Thousands demonstrated in Madrid against the NATO presence in Spain.
1989 - The Exxon Valdez spilled 240,000 barrels (11 million gallons) of oil in Alaska's Prince William Sound after it ran aground.
1999 - NATO launched air strikes against Yugoslavia (Serbia, Montenegro, Kosovo and Vojvodina). The attacks marked the first time in its 50-year history that NATO attacked a sovereign country. The bombings were in response to Serbia's refusal to sign a peace treaty with ethnic Albanians who were seeking independence for the province of Kosovo.
1999 - The 7-mile tunnel under Mont Blanc in France was an inferno after a truck carrying flour and margarine caught on fire. At least 30 people were killed.
2006 - In Spain, the Basque separatist group ETA announced a permanent cease-fire.