1639 – English astronomer Jeremiah Horrocks (pictured) made the first successful prediction and observation of a transit of Venus.
1893 – First Matabele War: A patrol of British South Africa Company soldiers was ambushed and annihilated by more than 3,000 Matabele warriors.
1909 – The first Grey Cup, the championship game of the Canadian Football League, was held.
1971 – The Troubles: The Ulster Volunteer Force, an Ulster loyalist paramilitary group, exploded a bomb at a Catholic-owned pub in Belfast, Northern Ireland, killing 15 people.
1992 – U.S. President George H. W. Bush ordered American troops into Somalia to help provide humanitarian aid and restore order during the ongoing Somali Civil War.