The Columbian Exchange was when the old world (Europe) trade with the new world (America) items. for example: Old World had horses. So if Europe never came to America... we wouldn't have them. Or new world had tomatoes. If Europe didn't have tomatoes... We wouldn't have pizza or delicious Italian goods.
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Steve kept trying to make him remember who he was while hydra wanted him brainwashed.
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The Vietnam War was part of the Cold War for it was supposed to try to stop the flow of communism to the rest of the world it was also known as the domino affect.
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outcomes in China and Japan as the forces of industrialization began to affect them in the 19th century.
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