Aztec were one tribe from Mexico. They ruled a big empire until it colapped because they were invaded by Spanish Soidiers led by Hernon cortez . Spain only had 250 men and 16 Horses plus 10 Cannons. The Aztecs had 200,000 men the Aztecs had never seen Calvery Guns or Cannons before so that helped. In result the Spainish crushed the Aztecs and carried on conqeuring south america.