The Rubber People: Mesoamerica's First Civilization

In the tropical lowlands of what is now Veracruz and Tabasco, a distinct culture crystallized at a site called San Lorenzo Tenochtitlán. Traditionally, historians placed the beginnings of Olmec civilization between 1400 and 1200 BC, but ritual deposits found at the nearby shrine of El Manatí pushed the earliest known Olmec traces back to at least 1600–1500 BC. Still, what we recognize today as fully formed Olmec culture, its distinctive artistic and religious features, first appeared at San Lorenzo itself around 1400 BC. Archaeologists gave these people a name borrowed from the much later Aztecs: Olmec, from the Nahuatl for 'rubber people,' since their descendants' neighbors processed latex from the Castilla elastica tree, mixed with vine juice, to make balls for a ceremonial game. The name stuck even after scholars realized it referred to people living two thousand years after the original civilization had vanished. What the Olmec called themselves remains unknown, though later accounts may preserve a memory of them as 'Tamoanchan.'

Their roots run deeper still, into farming communities in Tabasco dating back to 5100–4600 BC, communities that shared crops and technologies with the later Olmec. By around 1400 BC, San Lorenzo had become the seat of something new: a densely populated society sustained by the fertile, well-watered soil of the Coatzacoalcos river basin, an environment comparable to the great river valleys of the Nile, Indus, and Yellow River. That fertility fed a growing elite, and that elite demanded luxury: jade from the Motagua River valley in Guatemala, obsidian hauled from highland sources 200 to 400 kilometers away, magnetite worked into polished ornaments.

Curiously, some Olmec-style artifacts appear even earlier outside the Gulf heartland. At Amuco-Abelino, in the modern state of Guerrero, objects have been dated to as early as 1530 BC, suggesting that the culture's formative currents ran through multiple regions before crystallizing at San Lorenzo.

The Olmec are most famous today for their art, especially the colossal stone heads, carved from massive boulders and unlike anything else in the ancient Americas. But their innovations reached further: they appear to be the first Mesoamerican society to practice ritual bloodletting and to play the Mesoamerican ballgame, a sport and ritual that would echo through nearly every civilization that followed them across the region for the next two thousand years.

Around 900 BC, San Lorenzo's dominance collapsed. Widespread destruction of many of its monuments occurred around the 950s BC, a sign perhaps of internal upheaval, though the leading theory today points to environmental change, shifting rivers that undercut the city's foundations. Power shifted to La Venta, which held Olmec preeminence until roughly 400 BC.