The Rise and Fall of Teotihuacan Society.

Fifteen hundred years ago, it was the largest city in the Americas, boasting a population of more than 100,000. What was it like to live there?And why did it fall to ruins? Archaeologist Sarah Clayton provides some clues about the rise and fall of an ancient city of central Mexico northeast of present-day Mexico City: Teotihuacan (TAY-uh-tee-wuh-CONN).