Decades: 1760s 1770s 1780s 1790s 1800s - 1810s - 1820s 1830s 1840s 1850s 1860s
Years: 1813 1814 1815 1816 1817 - 1818 - 1819 1820 1821 1822 1823
February 12 - Chile gains its independence from Spain
March 11 - Mary Shelley's Frankenstein is published
April 4 - The United States Congress adopts the flag of the United States as having 13 red and white stripes and one star for each state (20 stars) with additional stars to be added whenever a new state is added to the Union.
December 3 - Illinois is admitted as the 21st U.S. state.
December 24 - "Silent Night" composed by Franz Xaver Gruber
December 25 - The first performance of "Silent Night" (Church of St. Nikolaus in Oberndorf, Austria).
Karl XIV Johan becomes King of Sweden.
Anglo-Chinese College founded by Robert Morrison in Malacca.
Arts, Sciences, Literature and Philosophy
1818 in literature:
April 8 - King Christian IX of Denmark
April 29 - Emperor Alexander II of Russia
May 5 - Karl Marx, German political philosopher
July 30 - Emily Bronte, British novelist
September 27 - Adolph Wilhelm Hermann Kolbe, chemist
December 13 - Mary Todd Lincoln, future First Lady of the United States
May 10 - Paul Revere, engraver, American patriot
October 28 - Abigail Adams, first lady
Johann David Wyss, author of Swiss Family Robinson
Heads of states
Ottoman Empire - Mahmud II Sultan of the Ottoman Empire (1808-1839)
Prussia - Frederick William III King of Prussia (1797-1840)
Russia - Alexander I Tsar of Russia (1801-1825)\n