The first event that took place out of these options was the Spanish Conquest that destroyed the Aztec Civilization which was in 1519. Therefore the correct sequence is 3,1,2,4.
The great migration happened between 1916-1970 and was when 6 million African American were moved out of the Southern United States and to the urban Northwest, Midwest, and west
I think that the goal of creating a year-long daylight savings time during the oil embargo is C. to lower the consumption of oil
