At its zenith, perhaps in the first half
of the 1st millennium   AD, Teotihuacan
was the largest city in the pre-Columbian
Americas, with a population estimated
at 125,000 or more, making it at least the sixth
largest city in the world during its epoch.

Apart from the pyramids, Teotihuacan
    is also anthropologically significant
for its complex,  multi-family
          residential compounds,
the Avenue of the Dead &   its vibrant murals
that have been exceptionally  well-preserved.
Additionally,      Teotihuacan exported
         fine obsidian tools that are found
                     throughout Mesoamerica.

The city is thought to have been established
around 100 BC, with major monuments
continuously under construction until
about AD 250. The city may have lasted
          until sometime between the 7th &
8th centuries AD, but its major monuments
were sacked & systematically burned around AD 550.

Teotihuacan began as a religious center
in the Mexican Highlands around the first century AD.
It became the largest and most populated
center in the pre-Columbian Americas.
Teotihuacan was even home to multi-floor
apartments &     condominium compounds
                        built to accommodate
a            large & growing          population.
The term Teotihuacan (or Teotihuacano) is also used for the whole civilization and cultural complex associated with the site.