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Louisiana Purchase
The Louisiana Purchase was the acquisition of the Louisiana territory by the United States from France in 1803. The U.S. paid fifty million francs and a cancellation of debts worth eighteen million francs for a total of sixty-eight million francs. This essentially doubled the size o America at the time -
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Manifest Destiny
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Lewis and Clark Expidition
The Lewis and Clark Expedition from May 1804 to September 1806, also known as the Corps of Discovery Expedition, was the first American expedition to cross what is now the western portion of the United States. -
War of 1812
The War of 1812 was a conflict fought between the United States, the United Kingdom, and their respective allies. -
American System
This "System" consisted of three mutually reinforcing parts: a tariff to protect and promote American industry; a national bank to foster commerce; and federal subsidies for roads, canals, and other "internal improvements" to develop profitable markets for agriculture. -
FLorida Treaty
The Adams–Onís Treaty of 1819, also known as the Transcontinental Treaty, the Florida Purchase Treaty, or the Florida Treaty, was a treaty between the United States and Spain in 1819 that ceded Florida to the U.S. and defined the boundary between the U.S. and New Spain. -
The Monroe Doctrine
The Monroe Doctrine was a United States policy of opposing European colonialism in The Americas beginning in 1823. ... President James Monroe first stated the doctrine during his seventh annual State of the Union Address to Congress. -
Trail of Tears
The Trail of Tears was a series of forced removals of Native American nations from their ancestral homelands in the Southeastern United States to an area west of the Mississippi River that had been designated as Indian Territory. -
Oregon Trail
The Oregon Trail is a historic 2,000 mile trail used by American pioneers living in the Great Plains in the 19th century. The emigrants traveled by wagon in search of fertile land in Oregon's Willamette Valley. -
Mexican American War
The Mexican–American War, also known as the Mexican War and in Mexico the American intervention in Mexico, was an armed conflict between the United States of America and the United Mexican States from 1846 to 1848. -
California Gold Rush
The California Gold Rush began on January 24, 1848, when gold was found by James W. Marshall at Sutter's Mill in Coloma, California. The news of gold brought some 300,000 people to California from the rest of the United States and abroad.
