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c. 1200 BCEReputable source · 2 sourcesWell documented

The Olmec Build San Lorenzo and Carve the Colossal Heads

Mexico's first major civilization raises multi-ton basalt portraits of its rulers on the Gulf Coast

On the timeline · around c. 1200 BCE · Pre-Columbian MesoamericaPre-Columbian MesoamericaThe Olmec Build San Lorenzo and Carve the Colossal Heads1,000 BCE750 BCE500 BCE250 BCE1 CE250 CE500 CE

Quick facts

Region
Gulf Coast lowlands, modern Veracruz and Tabasco
Key sites
San Lorenzo, La Venta, Tres Zapotes
Heads found
17 total (10 at San Lorenzo, 4 at La Venta)
Material
Single-boulder basalt, up to 25 tons

What happened

On Mexico's Gulf Coast, the Olmec built the earliest major civilization in Mesoamerica, centered on San Lorenzo and later La Venta, between about 1200 and 400 BCE. Their signature works are the colossal stone heads: seventeen have been found so far, ten at San Lorenzo and four at La Venta, ranging from about 1.47 to 3.4 meters tall and weighing up to 25 tons each. Workers carved each head from a single basalt boulder quarried in the Tuxtla Mountains and moved it, likely by river raft and log rollers, over distances that could exceed 100 kilometers. Each face is individual rather than generic, which is why most scholars read the heads as portraits of specific rulers rather than gods or generic ancestors.

Why it matters

The Olmec gave later Mesoamerican cultures, including the Maya and the Aztec, shared elements they built on for two thousand years: the ballgame, jaguar imagery tied to political power, and monumental civic architecture. The scale of the heads also proves organized labor and long-distance transport existed in Mexico a millennium before writing does.

How we know

The colossal heads have been excavated since the first was found in 1871, with the most recent recovered in 1994; their basalt has been sourced geologically to specific quarries in the Tuxtla Mountains, which is how archaeologists reconstruct the transport routes.

Sources

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Part of a timelineHistory of Mexico34 events · From the Olmec's colossal stone heads to a modern republic, told through the conquest that ended one empire and the revolution that remade the nation twiceView all →