|   [[1790s]]  |   [[1800s]]  |   [[1810s]]  |     [[1820s]]  |     [[1830s]]  |     [[1840s]]  |     [[1850s]]  |     [[1860s]]  |     [[1870s]]  |     [[1880s]]  |     [[1890s]]  | [[1900-2000]]|
====== 1821 ======
|  * [[1820]]  |    * 1821  |    * [[1822]]  |    * [[1823]]  |    * [[1824]]  |  * [[1825]]  |    * [[1826]]  |    * [[1827]]  |    * [[1828]]  |    * [[1829]]  |

===== Events =====
==== Boone County ====
  * Constantine S. Rafinesque, Science Professor at Transylvania University, visits [[Big Bone Lick]] and the [[Big Bone Landing]].

==== Kentucky ====
  * Thomas Jefferson admits to drafting the Kentucky Resolutions, which argued that states had the right to declare federal laws unconstitutional.
==== U.S. & World ====
  * Missouri joins the Union a year after the Missouri Compromise. The state had wanted to ban free blacks and mulattos, but Henry Clay fought the proposal in the Senate.
  * The American Colonization Society founds the colony of Liberia in West Africa, which it intends to give to freed [[slavery|slaves]]. The idea that [[African-Americans]] could just go back to Africa lingered in intellectual circles until the [[Civil War]]. 
  * The first tuition-free public high [[schools|school]] in the United States opens in Boston, Massachusetts.

===== More Information =====
  * Boone County [[https://bcp.ent.sirsi.net/client/en_US/search/asset/32021/0|Tax Lists]], 1821.