Original: Millon ( 1993 , p. 24 ) Zenith The city reached its zenith between 150 and 450 , when it was the center of a powerful culture whose influence extended through much of the Mesoamerican region .
Simplified: Zenith The city reached its zenith between 150 and 450 . It was the center of a powerful culture whose influence extended through much of the Mesoamerican region .