THOMAS JEFFERSON PURCHASED THE LOUSIANA PURCHASE FOR $15 MILLION

LEWIS AND CLARK EXPLORE THE LAND FROM THE LOUISIANA PURCHASE

THE U.S DECLARE WAR ON BRITAIN.

UNDERGROUND RAILROAD ESTABLISHED

TEXAS DECLARES INDEPENDENCE FROM MEXICO

WAR WITH MEXICO

COMPROMISE BETWEEN FREE AND SLAVE STATES

ABRAHAM LINCOLN INAUGURATED

ALL CONFEDERATE STATES SECEDE

LEE SURRENDERS TO UNION FORCES

LINCOLN GETS SHOT AND DIES