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Thomas Jefferson inaugurated President
Thomas Jefferson was officially inaugurated as the third President of the United States. -
The Louisiana Purchase
Thomas Jefferson purchases a large mass of land east of The Mississippi River from France. -
Lewis and Clark begin Expedition
Lewis and Clark begin exploration of the newly purchased lands. -
The War of 1812
The War of 1812 was a conflict between the United States and its allies, and Great Britain over maritime rights and trade sanctions that were put in place to hinder American expansion. -
Monroe Doctrine
The United States establishes a policy that will not tolerate further intervention, colonization, or puppet monarchies from European Nations. -
U.S.-Mexican War begins
This war resulted from a dispute over the border between Texas and Mexico. The U.S. was victorious and Mexico Mexico ceded to the United States nearly all the territory now included in the states of New Mexico, Utah, Nevada, Arizona, California, Texas, and western Colorado for $15 million. -
Abraham Lincoln elected President
Abraham Lincoln is elected as the sixteenth President of the United States. -
American Civil War begins
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The Emancipation Proclamation
President Abraham Lincoln signs the Emancipation Proclamation on January 1, 1863 in the midst of the Civil War. It declared "that all persons held as slaves are, and henceforward shall be free." -
Gettysburg Address
Abraham Lincoln addresses the nation at the site of the battle of Gettysburg. -
Abraham Lincoln is Assassinated
Abraham Lincoln is shot in the head by John Wilkes Booth while watching a play at the Ford Theater. He dies the next day. -
American Civil War ends
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Transcontinental Railroad completed
The First Transcontinental Railroad is completed. It was a 1,912-mile continuous railroad line that connected the existing Eastern railroad network to the Pacific coast. -
Alexander Graham Bell invents the telephone
On this date, Alexander Graham Bell receives the patent for his new invention, the telephone.
