February 9 – The George Washington University is chartered as The Columbian College of the District of Columbia by President James Monroe.
March 4 – James Monroe and Daniel D. Tompkins begin their second terms as President and Vice President of the United States.
March 5 – James Monroe is sworn in for his second term as President of the United States.[1] Daniel D. Tompkins is sworn in for his second term as Vice President of the United States.
June 27 – The New Hampton School is founded in the state of New Hampshire.
July 10 – The U.S. takes possession of its newly bought territory of Florida from Spain.
August 4 – The Saturday Evening Post relaunched.
August 10 – Missouri is admitted as the 24th U.S. state (seeHistory of Missouri).
September 3 – The 1821 Norfolk and Long Island hurricane strikes New York City.
September 18 – Amherst College is founded in Massachusetts.
November 16 – American Old West: The Santa Fe Trail is used for the first time by a White American, William Becknell.
History of Liberia – The first groups of freed slaves from the U.S. arrive in modern-day Liberia and found Monrovia.
Widener University is founded in Wilmington, Delaware, s The Bullock School for Boys.
Ongoing[]
Era of Good Feelings (1817–1825)
Births[]
January 2 – Napoleon LeBrun, architect (died 1901)
January 8 – James Longstreet, one of the foremost Confederate generals of the American Civil War (died 1904)
January 16 – John C. Breckinridge, 14th Vice President of the United States from 1857 to 1861, U.S. Senator from Kentucky in 1861 (died 1875)
February 4 – Frederick Goddard Tuckerman, sonneteer (died 1873)
February 19 – Francis Preston Blair Jr., U.S. Senator from Missouri from 1871 to 1873 (died 1875)
March 20 – Ned Buntline (Edward Zane Carroll Judson Sr.), publisher, dime novelist and publicist (died 1886)