1800:
April: US Library of Congress founded
June 14: Battle of Marengo
November 1: John Adams moves into Executive Mansion, later known as the White House
November 17: US Congress holds first session in Washington, DC
1801:
January 21: John Marshall appointed Chief Justice of US Supreme Court
February 19: Thomas Jefferson wins presidential election, which is resolved in US House of Representatives
March: Thomas Jefferson inaugurated
April 2: Battle of Copenhagen
1802:
July 4: West Point opens as US Military Academy
Marie Tussaud opens wax museum in London
1803:
February 24: Marbury v. Madison decided by US Supreme Court
April 30: Louisiana Purchase
July: Rebellion led by Robert Emmet begins in Ireland
September 20: Robert Emmet executed in Dublin, Ireland
1804:
May: Lewis and Clark expedition departs
July 11: Duel in which Aaron Burr shoots and fatally wounds Alexander Hamilton
Thomas Jefferson reelected president
August 20: Death of Charles Floyd on Lewis and Clark Expedition
December 2: Napoleon crowns himself Emperor of France
1805:
October 21: Battle of Trafalgar; Admiral Lord Nelson fatally wounded
November 7: Lewis and Clark reached Pacific Ocean
December 2: Battle of Austerlitz
1806:
Bernard McMahon publishes The American Gardener’s Calendar, first book on gardening published in America.
Noah Webster published his first dictionary of American English
March: Lewis and Clark begin their return journey from the Pacific Northwest
May 30: Andrew Jackson, future American president, kills Charles Dickinson in a duel provoked by disagreement over a horse race and insults to Jackson’s wife.
September: Lewis and Clark and the Corps of Discovery return to St. Louis, completing their expedition to the Pacific.
1807:
March 25: Importation of slaves prohibited by law passed by US Congress, but law does not become effective until following January 1.
May 22: Aaron Burr indicted for treason
July 4: Birth of Giuseppe Garibaldi
August: Robert Fulton’s first steamboat leaves New York City bound for Albany, sailing on the Hudson River.
1808:
January 1: Law banning importation of slaves into United States takes effect
November: James Madison wins presidential election in the United States.
1809:
February: Robert Fulton patents the steamboat
February 12: Abraham Lincoln born in Kentucky. Charles Darwin born in Britain.
October 11: Meriwether Lewis dies under mysterious circumstances.
