December 14-Alabama the ninth state admitted into the Union

1820 March 3-Mi ouri Compromise pa ed, by which slavery was prohibited north of parallel from south boundary of Mi ouri to Pacific Ocean, but established in Mi ouri. March 15-Maine the tenth state admitted into the Union. 1821 February 24-Mexico declared independent of Spain. March 5-Monroe began second presidential term. August 10-Mi ouri the eleventh state admitted into the Union. 1823 March 3-Florida Territory formed. 1824 August 15-The Marquis de Lafayette visited the United States. 1826 July 4-Death of Adams and Jefferson. 1829 March 4-Andrew Jackson inaugurated seventh President.-" Spoils of office" policy in the civil service began. 1830 August 28-B. & O. R. R., the first to transport pa engers. 1831 July 4-Death of ex-President James Monroe. 1332 Black Hawk Indian war in Wisconsin and Illinois. October 25-" Nullification" act pa ed in South Carolina. 1833 March 4-Jackson began second presidential term. 1834 June 30-Indian country formed. 1835 Seminole Indian war began in Florida. December 28-General Thompson, Major Dade, and over 100 men ma acred in Florida. 1836 April 22-Texas independent of Mexico. June15-Arkansas the twelfth state admitted into the Union. July 3-Wisconsin Territory formed. Creek Indian war began in Georgia. 1837 January 26-Michigan the thirteenth state admitted into the Union. March 4-Martin Van Buren inaugurated eighth President. 1838 Canadians attempt to gain independence. July 3-Iowa territory formed. 1841 March 4-William Henry Harrison inaugurated ninth President. April 4-Death of President Harrison, one month after inauguration. April 6-John Tyler inaugurated tenth President. 1842 August14-Close of the Seminole war. Dorr's rebellion in Rhode Island. 1844 Morse's telegraph erected between Baltimore and Washington. 1845 March 3-Florida the fourteenth state admitted into the Union.