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After WWII, the Soviet Union (U.S.S.R.) and the United States of America (U.S.) entered into a period known as the Cold War. This war to prove their superiority over the other nation extended into space. What started as each nation building long range missiles developed into building rockets to explore space.
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The U.S.S.R. launches Sputnik - the first artificial satellite.
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The U.S.S.R. placed the first animal in a spacecraft, the dog Laika, aboard Sputnik 2.
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The first U.S. satellite, Explorer 1, was launched. It was the first satellite to carry science instruments.
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In the U.S., the National Aeronautics and Space Administration (NASA) is established by President Dwight D. Eisenhower in order to lead the space program
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The U.S.S.R. launched the first human into orbit, Yuri Gagarin, on Vostok 1.
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President John F. Kennedy of the U.S. declares in front of Congress that the U.S. will put a man on the moon before the end of the decade. This effectively gives shape to the end goal of the 'space race.'
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John Glenn, on Mercury-Atlas 6, became the first American to orbit the Earth.
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Valentina Tereshkova from the U.S.S.R. became the first woman in space.
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The U.S.S.R. launched the first multi-person spacecraft, Voskhod, into low Earth orbit. The crew consisted of three cosmonauts: Vladimir Mikhailovich Komarov, Konstantin Petrovich Feoktistov, and Boris Borisovich Yegorov.
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The very first space walk was performed by Aleksei Leonov of the U.S.S.R. from the spacecraft Voskhod 2.
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The first American space walk was completed by Ed White from Gemini 4.
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Sergei Korolev from the U.S.S.R. dies. He was the head of the Soviet space programming, responsible for Sputnik, Vostok Soyuz. This leads to several delays in the U.S.S.R. space programs.
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Three US astronauts, Virgil Grissom, Ed White, and Roger Chaffee, are tragically killed after their spacecraft catches fire during a launch simulation. This leads to a year and half delay in the Apollo program.
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The unmanned Soviet probe -Zond 5 - becomes the first spacecraft to fly around the Moon and return to Earth.
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U.S. launches the first flight of the Apollo program with astronauts Walter Schirra, Donn Eisele, and Walter Cunningham on Apollo 7. This flight saw the first live TV broadcast of Americans in space.
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The first crewed flight around the Moon took place, with Frank Borman, James Lovell, and William Anders on Apollo 8.. These astronauts took photos that were immensely helpful to the Apollo 11 landing preparation.
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The first humans landed on the Moon: Neil Armstrong and Buzz Aldrin on Apollo 11 from the U.S. By landing on the moon, the United States effectively “won” the space race that had begun with Sputnik’s launch in 1957.