- Jan 19 Peninsular War: After a ten day siege, Arthur Wellesley, 1st Duke of Wellington, orders British soldiers of the Light and third divisions to storm Ciudad Rodrigo.
- Mar 26 Earthquake destroys 90% of Caracas, Venezuela; about 20,000 die
- Jun 18 War of 1812 begins as US declares war against Britain
- Jun 24 Napoleon Bonaparte's forces invade Russia crossing the Neman River
- Sep 14 Napoleon occupies Moscow and the fires start, extinguished by the 19th
- Sep 18 Great Fire of Moscow burns out after 5 day, 75% of the city destroyed and 12,000 killed
- Dec 20 "Grimm's Fairy Tales" by Jacob and Wilhelm Grimm is published
Waltz introduced into English ballrooms. Some observers consider it disgusting and immoral.
On May 11, 1812