The Seminole War: A war fought between the native american/african american population and the U.S army. It started when american slave owners came to Florida looking for slaves and encountered the Seminole Indians who supported the British.
Adams-Onis Treaty:A treaty by John Adams in which the U.S paid $5 million to Spain for Florida.
Convention of 1818: A convention between the U.S and Britain determining the modern day Canadian border.
Panic of 1819:The Panic of 1819 was the first major peacetime financial crisis in the United States followed by a general collapse of the American economy lasting until 1821.
Land Act of 1820:The United States federal law that ended the ability to purchase the United States' public lands on a credit or installment system.
Missouri Compromise: An effort by Congress to defuse the sectional and political rivalries triggered by the request of Missouri late in 1819 for admission as a state in which slavery would be permitted.
Santa Fe Trail: The Santa Fe Trail was primarily a commercial highway connecting Missouri and Santa Fe, New Mexico.
Monroe Doctrine: A document by James Monroe that warns European nations that the United States would not tolerate further colonization or puppet monarchs.