In about 1519, Hernan Cortes set sail from Cuba with men and horses. Along the way, he picked up two translators - A Spanish prisoner of Mayan-speaking Indians, and an Indian slave named Malinche. The Spaniards arrived at Tenochtitlan, the Aztec capital with the intention of stealing all of the gold and other riches; they were amazed by the beauty of the capitol. On June 30, 1520, the Aztecs attacked the Spanish because of the Spaniards' lust for riches. The Spanish countered, though, and took over the capital and the rest of the Aztec empire on August 13, 1521. Due to the rule of the Spanish, the Indian population in Mexico went from 20 million to 2 million in less than a century.