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They walked over the ice from Siberia to Alaska in search of food nd became the Native Americans
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A ship with Vikings travel over the Atlantic from Greenland to east canada
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Christopher Columbus travels to America in a search to find a new way to India with help from Spain
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British vs the French
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The colonies become a new country
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Abraham Lincoln is elected and is against slavery
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The First World War
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The whole worlds economy becomes very low
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Hitler invaldes poland and starts the second world war but USA isn’t involved yet
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The Japanese who is a part of the axis powers make a surprise attack on the US naval base Pearl Harbour on Hawaii, dragging USA into the war
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USA drops the first nuclear bomb on the Japanese city Hiroshima
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The second nuclear bomb detonates in Nagasaki making the Japanese surrender and the war is over
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After the Second World War tensions were high between capitalist USA and the communist Soviet Union
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Thanks to the Truman doctrine USA intervenes in the conflict between the north and South Korea supporting the south side against communism
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USA joins in another conflict again to stop the spread of communism from north Vietnam to the south but were defeated against the Vietcong and their Guerilla warfare and tactics and had to leave in 1973
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An attack on the world trade center in New York by the terrorist organization Al Quaida