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A land deal between the United States and France, in which the U.S. acquired approximately 827,000 square miles of land west of the Mississippi River for $15 million dollars. -
Lewis and Clark set off to explore and map the newly acquired territory and find a route across the Western half of the continent to the Pacific Ocean. -
A war between the U.S. and Great Britain caused by American outrage over the impressment of American sailors by the British, the British seizure of American ships, and British aid to the Indians attacking the Americans on the western frontier. -
The first U.S. railway chartered for commercial transport of passengers and freight. -
War with Mexico that began when the U.S. annexed Texas and Mexico challenged the Border. Battles were fought in Texas, and Mexico was invaded from the Atlantic Ocean by General Winfield Scott. -
A time period when thousands of Americans rushed to California in hope to strike rich with gold. -
Treaty that ended the Mexican American War and forced Mexico to turn over much of its northern territory to the United States. -
Abraham Lincoln was elected on this day. His election is what started the deadliest war in American history. -
11 states seceded from the U.S. and the Confederate states were formed. South Carolina, Mississippi, Florida, Alabama, Georgia, Louisiana, Texas, Virginia, Arkansas, Tennessee, and North Carolina. -
Deadliest war in American history that was fought between the northern states (Union) and the southern states (Confederacy or Confederate States).