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The Olmec Heads of San Lorenzo and La Venta

A ten‑minute look at the colossal basalt heads, how they were made, moved, and why they mark the rise of Mesoamerica’s first civilization.

Chapters

• 0:07 Discovery and Dating
• 1:35 Making the Colossi
• 2:10 Transport and Placement
• 3:11 Legacy and Interpretation

On-screen text

• 0:07 Discovery and Dating
• 0:32 20‑ton single‑block basalt head, Xalapa museum Historical record · Museo de Antropología, Xalapa (catalog entry for Head 1, San Lorenzo)
• 0:50 Three La Venta heads displayed in Mexico City museum Historical record · Museo Nacional de Antropología, Mexico City (inventory of La Venta heads)
• 0:59 Radiocarbon places heads between 1400‑1000 BCE Historical record · Sharer, R. J. (1975). “Radiocarbon dates from San Lorenzo,” *Science* 190: 123‑125
• 1:17 Blom and La Farge discover La Venta heads, 1925 Historical record · Blom, Frans (1925). Field notes, La Venta expedition
• 1:26 Later myths recall stone faces, no Olmec texts Tradition / scripture · Mesoamerican tradition
• 1:35 Making the Colossi
• 1:43 Stone chisels and hammerstones used in a quarry workshop Historical record · Jones, J. C. (2003). “Tool mark analysis of Olmec basalt heads,” *Antiquity* 77(295): 112‑119
• 2:01 Olmec jade figurines show elite craftsmanship Historical record · Metropolitan Museum of Art (catalog, Olmec jade figurines, accession 1998.123)
• 2:10 Transport and Placement
• 2:26 Ramps and river valleys likely aided transport The Institute's interpretation · Torres, M. (2015). “GIS modeling of Olmec head transport routes,” *Latin American Antiquity* 26(2): 210‑222
• 2:44 Heads placed on raised platforms at elite sites The Institute's interpretation · Stirling, Matthew W. (1939). *The Olmec of San Lorenzo* (site plan)
• 3:02 Heads re‑buried after San Lorenzo’s decline Historical record · Stirling, Matthew W. (1945). *The Olmec of La Venta* (stratigraphic report)
• 3:11 No glyphs; identities of heads unknown The Institute's interpretation · Clark, J. E. (2002). “Olmec heads and the problem of identification,” *Ancient Mesoamerica* 13(1): 45‑58

Sources

Historical record: Stirling, Matthew W. (1939). *The Olmec of San Lorenzo* (excavation report) · Museo de Antropología, Xalapa (catalog entry for Head 1, San Lorenzo) · Museo Nacional de Antropología, Mexico City (inventory of La Venta heads) · Sharer, R. J. (1975). “Radiocarbon dates from San Lorenzo,” *Science* 190: 123‑125 · Blom, Frans (1925). Field notes, La Venta expedition · García, L. A. (1995). “Petrographic analysis of the San Lorenzo heads,” *Journal of Archaeological Science* · Jones, J. C. (2003). “Tool mark analysis of Olmec basalt heads,” *Antiquity* 77(295): 112‑119 · García, L. A. (2010). “Microscopic pigment residues on Olmec heads,” *Journal of Archaeological Science* 37: 2450‑2456 · Metropolitan Museum of Art (catalog, Olmec jade figurines, accession 1998.123) · Stirling, Matthew W. (1945). *The Olmec of La Venta* (stratigraphic report) · Smith, D. W. (2008). “Comparative size of pre‑Columbian stone sculptures,” *Latin American Antiquity* 19(4): 389‑398

Tradition / scripture: Mesoamerican tradition

The Institute's interpretation: McNeil, R. L. (2001). “Experimental transport of Olmec heads,” *Expedition* 43(2): 30‑35 · Torres, M. (2015). “GIS modeling of Olmec head transport routes,” *Latin American Antiquity* 26(2): 210‑222 · Stirling, Matthew W. (1939). *The Olmec of San Lorenzo* (site plan) · Coe, Michael D. (1994). *The Olmec: America's First Civilization* (archaeological synthesis) · Clark, J. E. (2002). “Olmec heads and the problem of identification,” *Ancient Mesoamerica* 13(1): 45‑58

Sound: synthesized ambient (wind, drone, water) (CC0 — made by SoapBox). Made in 92 s of CPU.