The Aztecs were not as strong as the Inca. They got defeated in war against other tribes many times. The Aztecs were the youngest out of the other 3 main tribes. The Aztecs' main city is built on an island in a Mexican lake named lake texcoco. For more info visit: www.knowledgenuts.com/2013/10/22/the-difference-between-the-Aztec-maya-inca-and-olmec/
