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The United States purchased 828,000 square miles of land west of the Mississippi River for $15 million. -
The Civil War in the United States began in 1861, after decades of simmering tensions between northern and southern states over slavery.
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On April 14, 1865, Abraham Lincoln, the 16th president of the United States, was assassinated by John Wilkes Booth while attending the play Our American Cousin at Ford's Theatre in Washington, D.C. Shot in the head as he watched the play, Lincoln died of his wounds the following day at 7:22 am in the Petersen House opposite the theater.
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In 1871, Bell started working on the harmonic telegraph — a device that allowed multiple messages to be transmitted over a wire at the same time.
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Always working on different mechanical projects and keeping up with scientific research, the Wright brothers closely followed the research of German aviator Otto Lilienthal. When Lilienthal died in a glider crash, the brothers decided to start their own experiments with flight.
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On April 9, 1940, Germany simultaneously invaded Norway and occupied Denmark, and the war began in earnest.
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The Great Depression, a worldwide economic collapse that began in 1929 and lasted roughly a decade, was a disaster that touched the lives of millions of Americans
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President Franklin D. Roosevelt addressed a joint session of the U.S. Congress on December 8, the day after the crushing attack on Pearl Harbor.
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At noon on August 15, 1945 (Japanese time), Emperor Hirohito announced his country’s surrender in a radio broadcast.
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By dawn on June 6, thousands of paratroopers and glider troops were already on the ground behind enemy lines, securing bridges and exit roads