Mary, Queen of Scotland, marries the French dauphin, Francis.
Claude-Joseph Rouget de Lisle composes "La Marseillaise". It will become France's national anthem.
Spain declares war on United States, rejecting an ultimatum to withdraw from Cuba.
Irish nationalists launch the Easter Uprising against British occupation.
The Berlin airlift begins to relieve the surrounded city.
Winston Churchill is knighted by Queen Elizabeth II.
Leftist students take over Columbia University in protest over the Vietnam War.
A rescue attempt of the U.S. hostages held in Iran fails when a plane collides with a helicopter in the Iranian desert.