WHAT ALL HAPPENED MARCH TO DECEMBER 1820
Find out what all happened March to December 1820

Alexander Ypsilantis is declared leader of Filiki Eteria, a secret organization to overthrow Ottoman rule over Greece. (12. April 1820)

Guayaquil declares independence from Spain. (9. October 1820)

The Missouri Compromise is signed into law by President James Monroe. The compromise allows Missouri to enter the Union as a slave state, brings Maine into the Union as a free state, and makes the rest of the northern part of the Louisiana Purchase territory slavery-free. (6. March 1820)

Constitutionalist insurrection at Oporto, Portugal. (24. August 1820)

An 80-ton sperm whale attacks the Essex (a whaling ship from Nantucket, Massachusetts) 2,000 miles from the western coast of South America. (Herman Melville's 1851 novel Moby-Dick is in part inspired by this story.) (20. November 1820)

HMS Beagle, the ship that will take Charles Darwin on his scientific voyage, is launched. (11. May 1820)

Constitutionalist revolution in Lisbon, Portugal. (15. September 1820)

The Venus de Milo is discovered on the Aegean island of Melos. (8. April 1820)

The U.S. Congress passes the Missouri Compromise. (3. March 1820)

Captain Nathaniel Palmer becomes the first American to see Antarctica. (The Palmer Peninsula is later named after him.) (17. November 1820)

Maine becomes the 23rd U.S. state. (15. March 1820)