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.
Why did historians choose to study this topic the correct answer is b
They fought in the war which helped the army
Answer: B. Increased production of war materials
C. A reduction in the number of European Immigrants
Explanation:
Due to WWI, there was a severe shortage of labor since many former factory workers had enlisted in the army and not many European migrants were pouring into the country. With demand for war materials at an all time high, African Americans were compelled to migrate to the more indutrial north to become industrial workers, with higher wages than those of an agricultural worker in order to make up for the lost manpower.
Answer:
The crusades were fought mainly between the Arabs that controlled Jerusalem and Europe's armies, mainly the Holly Roman Empire.
Explanation: