Lee Harvey Oswald while traveling through Dallas, Texas
This event is regarded as the beginning of the American Civil War.
Your answer is B
The Sumerians were the first developed complex society,
B: All Native Americans had been removed from the western frontier :) Hope that helped
The correct answer here would be C. The focus on steel was such that it took people away from their fields and they have missed an excellent season for food production in 1958. The weather in 1959 was disastrous and the yearly harvest was not nearly enough to sustain the Chinese population which led to widespread famine.