The northern nomadic peoples who entered central Mexico following the decline of Teotihuacan were the AP World History Chapter 11 The northern nomadic peoples who entered central Mexico following the decline of Teotihuacan were the a. Aztecs. b. Incas. c. Maya. d. Olmecs. e. Toltecs. Answer: E Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+