1804

Events

 * Unknown:
 * Richard Johnson becomes a Member of the Kentucky House of Representatives
 * February 15:
 * Slavery is abolished in New Jersey
 * February 16:
 * Commodore Stephen Decatur leads a raid in Tripoli, where the USS Philadelphia is burned as to not fall into enemy hands
 * March 10:
 * Three Flags Day is held in St. Louis in order to commemorate the completion of the Louisiana Purchase
 * May 14:
 * Meriwether Lewis and William Clark explore the recently acquired land from the Louisiana Purchase in what was called the Lewis and Clark Expedition
 * June 15:
 * New Hampshire ratifies the 12th Amendment which is vetoed by Governor John T. Gilman
 * July 11:
 * Alexander Hamilton and Aaron Burr end up in a duel, where Burr fatally wounds Hamilton
 * July 27:
 * Tennessee ratifies the 12th Amendment
 * November 3:
 * William H. Harrison and Sauk Chief Quashquame sign the Treaty of St. Louis
 * November 30:
 * The Senate starts impeachment precedings against Supreme Court Justice Samuel Chase
 * December 3:
 * Thomas Jefferson wins re-election against Charles C. Pinckney

Births

 * February 22:
 * George Whitfield Crabb - Member of the House of Representatives (d. 1846)
 * November 23:
 * Franklin Pierce - President of the United States (d. 1869)

Deaths

 * July 12:
 * Alexander Hamilton Sr. - 1st United States Secretary of the Treasury (b. 1755)
 * November 18:
 * Philip John Schuyler - Senator of New York (b. 1733)