Philip II of Spain and Henry II of France sign the peace of Cateau-Cambresis, ending a long series of wars between the Hapsburg and Valois dynasties.
The Pony Express connects St. Joseph, Missouri and Sacramento, California.
Slavery is abolished in Washington, D.C.
The American outlaw Jesse James is shot in the back and killed by his cousin, Bob Ford.
The Japanese begin their all-out assault on the U.S. and Filipino troops at Bataan.
The U.S. Supreme Court rules that black citizens are eligible to vote in all elections, including primaries.
President Harry Truman signs Marshall Plan. It will revive war-torn Europe.