- Jan 19 Cold Friday: temperature at Portsmouth, New Hampshire drops from 54°F to minus 12°F in one day with many frozen to death
- Feb 1 1st insurance company managed by African Americans, The African Insurance Company opens in Philadelphia
- Feb 1 Seville, Spain surrenders to the French without a fight
- Feb 1 US Population: 7,239,881, African American population: 1,377,808 (19%)
- Feb 4 Royal Navy seizes Guadeloupe.
- Feb 28 1st US fire insurance joint-stock company organized, Philadelphia
- Mar 6 Illinois passes 1st state vaccination legislation in US
- Apr 19 Venezuela achieves home rule: Vicente Emparan, Governor of the Captaincy General is removed by the people of Caracas and a Junta is installed.
- Apr 20 The Governors of Caracas declares the national sovereignty from Spain
Event of Interest
May 3 English poet Lord Byron swims the Hellespont (modern day Dardanelles)
- May 25 In the May Revolution, citizens of Buenos Aires expel the Spanish Viceroy Cisneros during Semana de Mayo
- May 25 The Primera Junta (local government) is established in Argentina
Event of Interest
Jun 23 John Jacob Astor organizes the Pacific Fur Company in Astoria, Oregon
- Jul 1 Louis Napoleon abdicates as king of the Netherlands
- Jul 4 French troops occupy Amsterdam
- Jul 9 Napoleon annexes the Kingdom of Holland as part of the First French Empire
- Jul 20 Citizens of Bogotá, New Granada (now Colombia), declare independence from Spain
- Aug 9 Napoleon annexes Westphalia as part of the First French Empire
- Aug 21 Jean-Baptiste Bernadotte, Marshal of France, is elected Crown Prince of Sweden by the Swedish Riksdag of the Estates.
- Sep 16 Mexico issues Grito de Dolores, calling for the end of Spanish rule (Mexican Independence Day)
- Sep 18 Chile declares independence from Spain (National Day)
- Sep 26 A new Act of Succession is adopted by the Riksdag of the Estates and Jean Baptiste Bernadotte becomes heir to the Swedish throne.
Victory in Battle
Sep 27 Battle of Bussaco: Arthur Wellesley's Anglo-Portuguese Army defeats a larger French force led by Marshal André Masséna with the French suffering 4,500 dead and wounded
