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The Louisiana Purchase
April 30, 1803 marks the date when Thomas Jefferson signed the Louisiana Purchase, doubling the size of the US for 15 million dollars. -
Lewis and Clark Expedition Begins
Lewis and Clark set out on their infamous journey on May 14, 1804. -
Lewis and Clark Expedition Ends
Lewis and Clark reached St. Louis on September 23, 1806, ending their mission. -
First Juvenile Detention Center
The first juvenile detention center was opened in New York. It was called the House of Refuge, and it opened in 1825. -
Cherokee Constitution
In 1827, the Cherokee made their own constitution. It had a legislative, executive, and judicial branch. -
Indian Removal Act
President Andrew Jackson signed the Indian Removal Act. -
First Trip of the Oregon Trail
Marcus and Narcissa Whitman were the first emigrants to travel the entirety of the Oregon Trail. Fur trappers were the ones to blaze the trail, but the first covered wagon journey was done by the Whitmans. -
The First Publicly Supported Psychiatric Hospital
Dr. John Galt was made the superintendent of the Eastern Lunatic Asylum in Williamsburg, Virginia. He introduced new types of treatment and therapy to the hospital. -
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Mexican-American War
The Mexican-American War was the first battle the Americans fought on foreign soil. America eventually won and Mexico gave up Texas. -
Seneca Falls Convention
Elizabeth Cady Stanton and Lucretia Mott organized the first women's right convention in Seneca Falls in 1848. -
The Gold Rush
James Marshall found a bit of gold at his boss' farm in 1849. The whole country was flocking to California afterwards. -
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Buffalo Slaughter
Native American tribes were devastated after nearly 9 million buffalo were killed in just 3 years. Both hunting and sickness caused it.