How do you think the aztecs were able to establish an extensive empire in such a relatively short period of time?

The Aztecs were able to establish an extensive emipre in a short time because of the belief they had in their gods. Everyone worseshiped the gods and their ideas so theuir was no problem ruling.The more the people were controled, the more the king could focus on the empire and building. No wonder they have such amazing buildings. 

What is the

3is faulse becaues the big so that wpuld mean thtmat they are farther apart.