About 10 years, however the economy was in trouble again because shirtly after the WW2 happened
Answer:
The U.S. entered World War I because Germany embarked on a deadly gamble. Germany sank many American merchant ships around the British Isles which prompted the American entry into the war.
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They realized that they did not have enough people to do all of the work of establishing a colony. That's hard work, for like 400 people! This sparked the massive slave trade of the 1500 slave trade.
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