Final answer:
According to Aztec mythology, the Aztecs began their civilization by migrating from their mythical home, Aztlan, and settling in the Valley of Mexico. This journey was marked by battles, encounters with sorcerers, tribal divisions, and the birth of important gods. The Aztec migrants eventually settled on an island in Lake Texcoco, where they established the city of Tenochtitlán.
Step-by-step explanation:
The Aztec civilization began with their migration from their mythical original home, Aztlan. According to the Aztecs' own origin story, they migrated from Aztlan and eventually settled in the Valley of Mexico. They faced battles, encountered sorcerers, experienced significant tribal divisions, and witnessed the birth of important gods like Huitzilopochtli, the Aztec war god. The story culminated in a dramatic clash on the shore of Lake Texcoco, where the Aztec migrants survived by the intervention of Huitzilopochtli. He instructed the Aztecs to settle and build their great city of Tenochtitlán on an island in the lake.