Deaths on April 12

Marie Alfred Cornu, French physicist and academic (b. 1842)

Marie Alfred Cornu (French: [kɔʁny]; 6 March 1841 – 12 April 1902) was a French physicist. The French generally refer to him as Alfred Cornu.

28 Jan

Andrew Carnegie
The Carnegie Institution of Washington is founded in Washington, D.C. with a $10 million gift from Andrew Carnegie.
27 Feb

Breaker Morant
Second Boer War: Australian soldiers Harry "Breaker" Morant and Peter Handcock are executed in Pretoria after being convicted of war crimes.
17 May

Antikythera mechanism
Greek archaeologist Valerios Stais discovers the Antikythera mechanism, an ancient mechanical analog computer.
14 Jul

Piazza San Marco
The Campanile in St Mark's Square, Venice collapses, also demolishing the loggetta.
9 Aug

United Kingdom of Great Britain and Ireland
Edward VII and Alexandra of Denmark are crowned King and Queen of the United Kingdom of Great Britain and Ireland.