| January 8 | Battle of New Orleans-War of 1812 ended 12/24/1814 but nobody knew |
| January 30 | Burned Library of Congress reestablished with Jefferson's 6500 vols |
| February 3 | World's 1st commercial cheese factory established, in Switzerland |
| February 6 | New Jersey issues 1st U.S. railroad charter (John Stevens) |
| February 26 | Napoleon and 1,200 leave Elba to start 100-day re-conquest of France |
| March 1 | Sunday observance in Netherlands regulated by law |
| March 3 | U.S. declares war on Algiers for taking U.S. prisoners and demanding tribute |
| March 16 | Willem I proclaimed king of the Netherlands, including Belgium |
| March 20 | Napoleon enters Paris after escape from Elba, begins 100-day rule |
| April 5 | Eruption of Tambora volcano (Sumbawa Java) |
| April 6 | English militia shoots prisoners, 100's killed |
| April 10 | Austria declares war on realm of Naples |
| May 3 | Battle at Tolentino: Austria beats king Joachim of Naples |
| May 24 | George Evans discovers Lachlan River, Australia |
| June 8 | 39 German states unite under Act of Confederation |
| June 16 | Battle at Ligny: French army under Napoleon beats Prussia |
| June 16 | Battle at Quatre-Bras: allies strike French |
| June 17 | Stephen Decatur conquerors Algerian frigate Mashouda |
| June 18 | Battle of Waterloo; Napoleon defeated by Wellington and Blucher |
| June 22 | 2nd abdication of Napoleon (after Waterloo) |
| June 30 | U.S. naval hero Stephen Decatur ends attacks by Algerian pirates |
| July 9 | 1st natural gas well in U.S. is discovered |
| July 9 | King Louis XVIII leaves Ghent for France |
| July 15 | Napoleon surrendered and is later exiled on St. Helena |
| August 6 | U.S. flotilla ends piracy by Algiers, Tunis and Tripoli |
| August 8 | Napoleon Bonaparte set sail for exile on St. Helena |
| September 21 | King Willem I takes oath in Brussels |
| September 26 | Russia, Prussia and Austria sign Holy Alliance |
| September 28 | Joachim Murats fleet sails from Corsica to Naples |
| September 29 | King Willem I forms Order of Dutch Lion |
| October 8 | Joachim Murats forces lands at Pizzo, Italy |
| October 12 | Ex-king Joachim Murat van Naples sentenced to death |
| October 15 | Napoleon Bonaparte exiled on Island of St. Helena |
| October 17 | Napoleon arrives in St. Helena |
| October 31 | Sir Humphrey Davy of London patents miner's safety lamp |
| November 20 | 2nd Peace of Paris: France and allies |
| November 20 | Russia, Prussia, Austria and England signs Great Alliance |
| November 27 | Cracow (Poland) declared a free republic |
| December 15 | Rossini gets assignment for Il barbiere di Siviglia |
| December 22 | Spaniards execute Mexican revolutionary priest Jose Maria Morelos |
BrainyHistory
