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The Wright brothers created the first controlled sustainable aircraft.
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The U.S. entered WWI against Germany and Austria-Hungary. Although the war lasted from 1914-1918, the U.S. didn't join until 1917.
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The worldwide influenza epidemic occurs. By 1920, almost 20 million people had died all over the world, 500,000 in the U.S.
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Charles Lindbergh creates the first solo nonstop transatlantic flight in his plane The Spirit of St. Louis.
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The star spangled banner became the U.S. national anthem.
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The U.S. declares war on Japan, Germany, and Italy. President Roosevelt dies of a stroke during the war, and is then replaced by President Truman. The war ends in 1945 when Japan surrenders.
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Communists (North Vietnam and China) vs. Non-Communists (South Vietnam and the U.S.). This war lasted from 1950-1975, and South Vietnam surrendered to North Vietnam.
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The first American satellite Explorer 1 is launched in Flordia.
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Dr. Martin Luther King Jr. delivers his "I have A Dream" speech at the Civil Rights March in Washington, DC. 200,000 people attended.
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Challenger space shuttle explodes 73 seconds after takeoff killing all seven passengers. It is known as the worst accident in the history of the U.S. space program.
