Can anyone help me write a thesis statement about the aztecs and incas in a 10th grade level?? PLEASE!! =]?

Well I cannot help you with the Aztecs but I do know one thing, there was only one Inca. The Inca was the King, ruler, head of the country whatever and there was only one person who was the Inca. People refer to all the people as incas but that is wrong. I cannot remember the name of the people exactly but they were originally called something like the tsuwinsayu. That was the name or a close proximity of what the people the Inca ruled over were called. Any more info go to nationalgeographic.com or smithsonian.com. I am sure they have more detailed information than most of us can give you here.