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American Revolution began/end
The American Revolution was a rebellion and political revolution in the Thirteen Colonies, which saw colonists initiate a war for independence against the Kingdom of Great Britain. -
the Declaration of independence was ratified
The Declaration justified the independence of the United States by listing 27 colonial grievances against King George III and by asserting certain natural and legal rights, including a right of revolution. -
The US Constitution was ratified
Written in 1787, ratified in 1788, and in operation since 1789, the United States Constitution is the world's longest surviving. -
Louisiana Purchase was made
the United States purchased 828,000 square miles of land west of the Mississippi River for $15 million. -
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American Civil War (beginning and end)
The war began when the Confederates bombarded Union soldiers at Fort Sumter, South Carolina on April 12, 1861. The war ended in Spring, 1865. Robert E. Lee surrendered the last major Confederate army to Ulysses S. Grant at Appomattox Courthouse on April 9, 1865. -
Abraham Lincoln is assassinated
On the morning of April 14, 1865 (Good Friday), actor John Wilkes Booth learned President Abraham Lincoln would attend a performance of the comedy Our American -
Alexander Graham Bell invents the telephone
Graham Bell successfully received a patent for the telephone and secured the rights to the discovery. Days later, he made the first ever telephone call to his partner, Thomas Watson. -
Thomas Edison perfects the lightbulb
But it wasn't until more than a year later, on the morning of October 22 (after working all through the day of October 21, 1879) that Thomas Alva Edison and his team finally “perfected” the incandescent light bulb -
The Wright Brothers invent the airplane
Wilbur and Orville Wright spent four years of research and development to create the first successful powered airplane, the 1903 Wright Flyer. It first flew at Kitty Hawk, North Carolina. -
Great Depression begins
the United States and the modern industrial economy. The Great Depression began in August 1929, when the economic expansion of the Roaring Twenties came to an end. A series of financial crises punctuated the contraction. -
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ww2 ends
December 7, 1941, the Japanese military launched a surprise attack on the United States Naval Base at Pearl Harbor, Hawaii. Since early 1941 the U.S. June 6th, 1944: More than 150,000 Allied troops land on the beaches of Normandy, France, as part of the largest seaborne invasion in history. The United States bombings of the Japanese cities of Hiroshima and Nagasaki on August 6 and August 9, 1945, were the first instances of atomic bombs used