Text 19 consists of nine glyphs that record a unique set of astronomical calculations . The formula links the 584-day synodic period of Venus and the 780-day synodic period of Mars into a combined cycle of 2,920 days, which is approximately eight Earth years
. The inscription is signed with the phrase che-he-na, a first-person possessive marker that researchers interpret as an explicit authorial signature meaning 'it is his' or 'so says'
. The calculations date to around A.D. 781
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This finding is significant for several reasons:
The discovery of Sak Tahn Waax reframes the global history of science. Researchers have drawn explicit comparisons to famous scientists from other ancient traditions: Pythagoras (6th century BCE Greece) and Galileo (16th–17th century CE Italy) . Sak Tahn Waax represents the first named example of a mathematical-astronomical author from the pre-Columbian Americas whose identity and work can be directly linked
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This discovery provides concrete evidence that Maya intellectuals were individually recognized for their mathematical contributions, operating at a level of planetary astronomy comparable in sophistication to Old World traditions—but developed independently . The Guatemalan Ministry of Culture and Sports has formally recognized the finding as part of the country's scientific heritage
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Text 19 is more than just a name. It shows that Maya astronomers were not anonymous keepers of tradition; they were recognized individuals who could claim ownership of their intellectual work. The formula itself, synchronizing the movements of planets visible to the naked eye, reflects a practical need to harmonize the ritual calendar with the sky. '"The identification and work of an eighth-century Maya mathematician," the study concludes, provides 'the only known example of a Classic-period Maya mathematician-astronomer identified by name and claiming direct credit for their intellectual work' .
The name Sak Tahn Waax—'White-chested Fox'—now stands alongside the anonymous scribes of the codices, giving a face and an identity to a brilliant mind from the ancient Maya world.