Source: HistoryNet.com
1588: The Spanish Armada sets sail from Corunna.
1867: Imperial troops in Guizhou, China, kill 20,000 Miao rebels.
1871: British Columbia Act comes into effect, making B.C. the sixth province to enter Confederation.
1877: Founding of the University of Manitoba.
1881: Sioux chief Sitting Bull surrenders to the U.S. Army.
1944: Adolf Hitler is wounded in an assassination attempt by German Army officers at Rastenburg.
1951: King Abdullah of Jordan is assassinated.
1969: Neil Armstrong and Edwin "Buzz" Aldrin become the first men to walk on the moon.
1976: The Viking spacecraft lands on Mars and begins taking soil samples.
2005: Canada becomes the world's fourth nation to grant full legal rights to same-sex couples, and permit same-sex marriage.