Centuries: 18th century - 19th century - 20th century
Decades: 1770s 1780s 1790s 1800s 1810s - 1820s - 1830s 1840s 1850s 1860s 1870s
Years: 1815 1816 1817 1818 1819 - 1820 - 1821 1822 1823 1824 1825
Events
- January 30 - Edward Bransfield discovers Antarctica.
- February 6 - 86 free African American colonists sail from New York City to Freeport, Sierra Leone.
- February 23 - The Cato Street conspiracy is exposed.
- June 29 - George IV becomes King of the UK.
- November - James Monroe is re-elected, virtually unopposed.
- Missouri Compromise
- 6th Edition of Encyclopaedia Britannica begins appearing.
- Republic of Buenos Aires (Argentina) establishes penal colony in Falkland Islands.
- Venus de Milo found on island of Melos.
- Spanish revolt against Ferdinand VII.
- Hans Christian Orsted discovers relationship between electricity and magnetism.
- Percy Bysshe Shelley publishes Prometheus Unbound.
Births
- January 17 - Anne Bronte, author
- February 8 - William Tecumseh Sherman, soldier (+ 1891)
- February 15 - Susan B. Anthony, US suffragist
- March 14 - Victor Emmanuel II of Italy
- March 22 - Stephen Decatur, naval officer
- September 27 - Wilhelm Siegmund Teuffel, classical scholar
- Mathilde Bonaparte, hostess and socialite
Deaths
- January 29 - King George III of the United Kingdom
- June 19 - Sir Joseph Banks, British naturalist and botanist
- September 3 - Benjamin Latrobe, architect