The Maya Codex of Mexico: The Oldest Book in the Americas Almost Lost to Skepticism
Episode Summary
In 1965, Mexican antiquities collector Dr. Josué Sáenz was blindfolded on a light plane with the compass covered, flown to a remote dirt airstrip near Tortuguero in Chiapas, and presented with a wooden box pulled from a dry cave containing a painted, screen-folded book — what would turn out to be the oldest surviving codex from Mexico and the oldest book in the Americas, dating between 1021 and 1154 CE. But that Indiana Jones origin story was precisely why the academic world rejected it for half a century. The towering English Mayanist J. Eric S. Thompson publicly dismissed it as a forgery in 1975 without ever seeing it in person, and his verdict became law — the codex was seized under the U.S.-Mexico Artifacts Treaty, donated to the Mexican government, and locked in a vault at the National Museum of Anthropology. Skeptics argued a clever 1960s forger had simply painted fresh deities onto genuinely ancient blank paper found in the same cave. It wasn't until Mexico's National Institute of Anthropology and History coordinated a massive battery of scientific tests culminating in 2018 that the truth emerged: radiocarbon dating confirmed the 11th-century age, entomologists proved the "scissor-cut" edges were actually centuries of arthropod chewing, non-destructive ion beam analysis identified authentic pigments including molecularly bonded Maya Blue — a complex indigo-and-palygorskite compound no mid-century forger could have synthesized — and the codex showed degradation patterns from at least three distinct periods of extreme moisture exposure that simply cannot be faked in a basement studio.
The ten surviving pages of the codex are a terrifying apocalyptic countdown clock built around the 584-day synodic cycle of Venus, which Mesoamerican cultures viewed not as a symbol of love but as an aggressive, warlike celestial entity whose heliacal rise literally shot dangerous spears of light at the earth. The Maya broke this cycle into four precise phases — 90 days of invisibility behind the Sun, 250 days as the evening star, an eight-day descent into the underworld during inferior conjunction, and 236 days as the lethal morning star — and linked five Venus cycles perfectly to eight solar years at exactly 2,920 days. Every page features a standing deity facing left alongside columns of day signs and ring numbers for calculating these phases, with imagery of relentless cosmic violence: gods taking human captives, setting temples ablaze with atlatl-launched darts, wielding knives over decapitated figures, and spearing creatures in bodies of water. The codex was created during the early post-classic period when the great Maya cities had already collapsed, power centers like Chichén Itzá and Tula were waning, and trade routes were fracturing — explaining both its hybrid artistic style blending Maya, central Mexican, Oaxacan, and Mixtec traditions, and the frantic energy of a single scribe hastily sketching yet expertly calculating the movements of a killer planet while their civilization crumbled around them.
Topics Covered
- The blindfolded 1965 discovery flight, Dr. Josué Sáenz, and the half-century academic dismissal led by J. Eric S. Thompson
- The 2018 scientific vindication: radiocarbon dating, ion beam pigment analysis, Maya Blue chemistry, and arthropod bite patterns
- Venus as a Mesoamerican war deity: the 584-day synodic cycle, four orbital phases, and the terrifying heliacal rise
Source credit: Research for this episode included Wikipedia articles accessed 3/17/2026. Wikipedia text is licensed under CC BY-SA 4.0; content here is summarized/adapted in original wording for commentary and educational use.