Open Veils · Answer
Arthur Posnansky
Posnansky's astronomical dating of Tiwanaku to roughly 15,000–17,000 BCE — derived from precession-based archaeoastronomy applied to the Kalasasaya temple's solstice alignments — remains one of the most suppressed and least debated challenges in American archaeology. His four-volume opus Tihuanacu: The Cradle of American Man presents physical, hydrological, and osteological evidence for a pre-glacial Andean civilization that orthodox timelines simply refuse to absorb. Recent scholarship frames him as a 'self-appointed champion' rather than engaging his astronomical methodology on its merits.
Evidence
- Robert Schoch, examining the site's massive stone erosion patterns, finds the hydrological evidence for extreme antiquity consistent with Posnansky's framing.
- A 2026 CONICET study by Erik Johnson Marsh labels Posnansky a 'misguided, self-appointed champion' — but tellingly does not refute his astronomical calculations directly, only his institutional role and racial-civilizationist framing.
- He brought in German astronomers Rolf Müller and Hans Ludendorff to independently review his calculations; both affirmed the astronomical logic, though they adjusted the date to around 10,000–13,000 BCE.
- Graham Hancock and Randall Carlson cite Posnansky's work as corroborating the Younger Dryas catastrophe hypothesis: a pre-diluvian civilization centered in the Andes that was destroyed and partially submerged when Lake Titicaca's shoreline sat dramatically higher.
- Brien Foerster and UnchartedX have documented the precision stonework at Puma Punku — located within the Tiwanaku complex — as anomalous for any Bronze Age culture, reinforcing the case that an earlier, more technically capable phase preceded what orthodox archaeology calls the Tiwanaku culture (c.