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Louisiana Purchase
It was the acquisition of the Louisiana territory (828,000 sq mi (2,140,000 km ; 530,000,000 acres)) by the United States from France in 1803. -
Expedition of Lewis and Clark
It was the first American expedition to cross the western portion of the United States. -
War of 1812
It was caused by British restrictions on U.S. trade and America’s desire to expand its territory. -
Missouri Compromise
It was the legislation that provided for the admission to the United States of Maine as a free state along with Missouri as a slave state, thus maintaining the balance of power between North and South in the United States Senate. -
Monroe Doctrine
It was a United States policy of opposing European colonialism in the Americas -
Indian Removal Act
This act authorized the president to grant unsettled lands west of the Mississippi River in exchange for Indian lands within existing state borders. -
Texas added as a state
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Start of Civil War
War broke out in April 1861 when secessionist forces attacked Fort Sumter in South Carolina shortly after Abraham Lincoln had been inaugurated as the President of the United States. The loyalists of the Union in the North proclaimed support for the Constitution. -
Emancipation Proclamation
It changed the federal legal status of more than 3.5 million enslaved African Americans in the designated areas of the South from slave to free. -
Assassination of Abraham Lincoln
President was assassinated by well-known stage actor John Wilkes Booth -
Last shot fired in civil war
last shot fired