Where did aztec come from?

Well it is all about human migration. The area between Asia (Russia) and Alaska was covered in I think ice. Well the humans that crossed the ice path out of Asia and into North America where some went south along the cost line. And others went east. Well the people that when south eventually in to what is now Mexico, Guatemala, and Belize. Some people settled there. The people that settled there would start civilizations that would become the Aztecs and Mayans. The people that continued moving south went into South America and eventually to the bottom cost.