Tenochtitlan was the capital city and centre of the Aztec Empire. The city founded in 1325 and served as the centre until it conquered by Spanish in 1520. The city was built on a swampy island in Lake Texcoco with pyramids, palaces, and storehouses.
The Templo Mayor represent a religious building worshipping gods Huitzilopochtli and Tlaloc. It was a religious and cultural heart of the Aztec empire. Coronations and sacrifices made in the temple to appease the gods. The Aztec practised rituals that required human, especially the heart of a human being. The human sacrifice became vital to ensure agricultural productivity along to win military conquests.
Men were needed to work in war-related industries in the North. Most white men were being drafted, while draft boards were so racist that blacks tended to be excluded, and available to fill the industrial jobs.