This genocide took place on the very doorstep of the Aztec Empire, yet when Cortés landed on the empire’s eastern coast, the Aztecs knew nothing about it. The coming of the Spaniards was the equivalent of an alien invasion from outer space. The Aztecs were convinced that they knew the entire world and that they ruled most of it. To them it was unimaginable that outside their domain could exist anything like these Spaniards. When Cortés and his men landed on the sunny beaches of today’s Vera Cruz, it was the first time the Aztecs encountered a completely unknown people.