Mexico-Tenochtitlan
The Spanish Empire controlled Mexico for over three centuries.
If you were to visit Mexico tomorrow, the best way that you would know that it was once controlled by the Spanish is the prevalence of the Spanish language.
When Spanish conquistadors arrived to Mexico, they also brought Roman Catholic priests with them. Once they conquered all native peoples in Mexico, they swiftly converted them to Christianity.
When the Spanish explorers arrived in Mexico they had priests with them. The priests convert the people they found.
Spanish conquistadors.
The Spanish
Moctezuma lived in Mexico and was the ruler of Tenochtitlan until the Spanish arrived :)
The Aztecs.
The Spanish Empire controlled much of present-day Mexico and Central America from 1521 until 1821.
It was the Aztec civilization.
The Aztec's were the last Indian empire in Mexico. They fell to the Spanish invasion in 1521. This was the beginning of 300 years of colonial rule in Mexico.