April 14: Pohela Baishakh in Bengal, Vaisakhi in India, N'Ko Alphabet Day in West Africa.
- 1471 – Wars of the Roses: The Yorkists under Edward IV (pictured) defeated the Lancastrians near the town of Barnet, killing Richard Neville, Earl of Warwick.
- 1865 – Actor and Confederate sympathizer John Wilkes Booth shot U.S. President Abraham Lincoln at Ford's Theatre in Washington, D.C.
- 1931 – King Alfonso XIII left Spain. The Second Spanish Republic was proclaimed by a provisional government led by Niceto Alcalá-Zamora.
- 1956 – The use of the quadruplex videotape was first demonstrated in public.
- 1970 – An oxygen tank aboard Apollo 13 exploded, causing the NASA spacecraft to lose most of its oxygen and electrical power.
- 1978 – Thousands of Georgians demonstrated in Tbilisi against an attempt by the Supreme Soviet of the Georgian SSR to change the constitutional status of the Georgian language.
April 14: Pohela Baishakh in Bengal, Vaisakhi in India, N'Ko Alphabet Day in West Africa.
- 1471 – Wars of the Roses: The Yorkists under Edward IV (pictured) defeated the Lancastrians near the town of Barnet, killing Richard Neville, Earl of Warwick.
- 1865 – Actor and Confederate sympathizer John Wilkes Booth shot U.S. President Abraham Lincoln at Ford's Theatre in Washington, D.C.
- 1931 – King Alfonso XIII left Spain. The Second Spanish Republic was proclaimed by a provisional government led by Niceto Alcalá-Zamora.
- 1956 – The use of the quadruplex videotape was first demonstrated in public.
- 1970 – An oxygen tank aboard Apollo 13 exploded, causing the NASA spacecraft to lose most of its oxygen and electrical power.
- 1978 – Thousands of Georgians demonstrated in Tbilisi against an attempt by the Supreme Soviet of the Georgian SSR to change the constitutional status of the Georgian language.