- 1634 the Burchardi flood — "the second Grote Mandrenke" killed around 15,000 men in North Friesland, Denmark and Germany.
- 1737 Earthquake kills 300,000 and destroys half of Calcutta India
- 1797 Battle of Camperdown (Kamperduin): English navy defeats Dutch fleet
- 1945 Chinese civil war begins, Chiang Kai-Shek vs Mao Zedong
- 1962 2nd Vatican Council (21st ecumenical) convened by Pope John XXIII
- 1986 Reagan & Gorbachev open talks at a summit in Reykjavik, Iceland
Albert Einstein informs FDR of possibilities of atomic bomb
On October 11th, 1939