At its height, this village had a population of less than 1,000 people. The inhabitants were farmers and fishermen who also did a small amount of hunting. The major crops were maize, beans, and squash. The fishing season coincided with the flooding of the river. The men would catch fish in landlocked ponds after the flooding of the river subsided. Along with fish, the Olmec would catch turtles for their main source of protein. If the fishing was slow and the turtle hunting was not going well, the Olmec would substitute domesticated dog and turkey meat in their diet.
It is speculated that the dense population concentration at San Lorenzo encouraged the rise of an elite class that eventually ensured Olmec dominance and provided the social basis for the production of the symbolic and sophisticated luxury artifacts that define Olmec culture.
Evidence of materials in San Lorenzo that must have come from distant locations suggests that early Olmec elites had access to an extensive trading network in Central America. This was most likely be protected by some sort of military system.
It is not known with any clarity what happened to this culture. Their main center at San Lorenzo, was all but abandoned around 900 BC, and La Venta became the main city. Environmental changes may have been responsible for this move, with certain important rivers changing course. However, there is also some evidence suggestive of an invasion and destruction of Olmec artifacts around this time.
Olmec:
Olmec Civilization
The elaborate religious practices of Mesoamerica began with the Olmec civilization
Olmec History
Later Mesoamerican accounts seem to refer to the ancient Olmec as "Tamoanchan".
Olmec Mytthology
The Olmec people mythology, significantly influenced the social development and mythological world view of Mesoamerica.
Olmec Writing
The Olmec probably the first Mesoamericans to develop a writing system, but no examples of it were found.