They were a highly advanced civilization with a rich history and culture. They were highly skilled in astronomy, mathematics, and engineering. They had a complex system of religion and government.
The Aztecs believed that they were the chosen people of the god Huitzilopochtli. They believed that he had led them to the Valley of Mexico, which was their promised land. The Aztecs built their capital city, Tenochtitlan, in the Valley of Mexico. They believed that Tenochtitlan was the center of the universe.