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He creates the assembly line to mass-produce cars. This is known as the Second Industrial Revolution. The assembly line revolutionizes the American industry.
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This was the beginning of the Great Depression. Millions of people lost jobs. It was a time of hunger and uncertainty. Roosevelt creates numerous government programs to try and combat this during the following decade.
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WWI had been fought 20 years earlier. Now Europe and Japan were at war again. Japan conducted a sneak attack on Hawaii. This brought us into the war.
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This ushers in the nuclear age. After WWII the Cold War begins with the Soviet Union. We engage in a missile race with the Soviet Union for the rest of the century.
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Ushers in the Civil Rights movement. In 1964 Civil Right Legislation is passed. In 1968 Martin Luther King Jr is assassinated.
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This took a decade of dedicated effort. There were six manned US landings between 1969 and 1972. A total of 12 individuals have stepped foot on the moon.
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For forty years we had been in a "Cold War" with the Soviet Union. With the collapse of the Berlin Wall in Germany, the Cold War came to an end.
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