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The Louisiana Purchase
The United States gained 828,000 square miles of territory from France. The Louisiana Territory stretched from the Mississippi River to the east of the Rocky Mountains and from the Gulf of Mexico to the Canadian Border. It is considered on of the most important achievements of Thomas Jefferson's presidency. -
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War of 1812
It was a war fought between Great Britain and the United States over British violations of U.S. maritime rights. The war ended in the exchanged of ratifications of the treaty of Ghent. -
The Missouri Compromise
In an effort to ease the tensions in Congress about slave and free states, the Missouri Compromise was passed admitting Maine as a free state and Missouri as a slave state. -
The Indian Removal Act
It was a law that allowed President Andrew Jackson to grant lands west of the Mississippi in exchange for Indian lands within existing sates borders. Some of the tribes left their lands peacefully but many resisted. -
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The Mexican-American War
It started when the Mexican cavalry attacked U.S. soldiers in a disputed zone, killing 12 soldiers. Two days later Congress declared war against Mexico. This war came to an end when the Treaty of Guadalupe Hidalgo was signed. In the treaty Mexico recognized the annexation of Texas, and sold California and the rest of its territory north of the Rio Grande. -
The Oregon Treaty
It was a treaty between the United States and Great Britain. It ended the Oregon boundary dispute by settling the 49th parallel as the border of the two countries. -
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The American Civil War
It was a war in the United States between the Union and the Confederacy. The main cause of the war was the conflicting expansion on slavery. The war ended when Confederate General Robert E. Lee surrendered his troops to Union General Ulysses S. Grant. -
The Gettysburg Address
A speech the Abraham Lincoln gave during the Civil War at the Soldiers' National Cemetery. He gave it 4 months after the Union armies defeated the Confederacy at the Battle of Gettysburg.