From the moment Spanish conquistador Hernan Cortés first found and confronted them, the Aztecs have fascinated the world, and they continue to hold a unique place both culturally and in pop culture. Nearly 500 years after the Spanish conquered their mighty empire, the Aztecs are often ed today for their major capital, Tenochtitlan, as well as being fierce conquerors of the Valley of Mexico who often engaged in human sacrifice rituals.

Ironically, and unlike the Mayans, the Aztecs are not widely viewed or ed with nuance, in part because their own leader burned extant Aztec writings and rewrote a mythologized history explaining his empire's dominance less than a century before the Spanish arrived. Naturally, Cortes and other Spaniards depicted the Aztecs as savages greatly in need of conversion to Catholicism. While the Mayans are ed for their astronomy, numeral system, and calendar, the Aztecs have primarily been ed in a far narrower way, despite continuing to be a source of pride to Mexicans through the centuries.

As a result, even though the Aztecs continue to interest people across the world centuries after their demise, it has fallen on archaeologists and historians to try to determine the actual history, culture, and lives of the Aztecs from the beginning to the end, relying on excavations, primary s, and more.

The Incas had consolidated their empire only a century before Pizarro and his Spanish conquistadores took control of Inca lands in the 1530s. The Incan heartland was the Andes Mountains from Ecuador down through Peru into parts of northern Chile, including what is now Bolivia, some of Argentina, and in the north, bits of what is now Colombia. It covered about 770,000 square miles, far larger than Spain, and held an estimated 14 million people, more than in Spain, comprised of many different indigenous groups.