Archaeologists have deciphered the personal name of Sak Tahn Waax, an ancient Maya astronomer-mathematician, from a hieroglyphic inscription in Guatemala [1].

This discovery is significant because it provides the first known personal name of a Maya specialist in these fields. While the Maya are renowned for their precise calendars and celestial observations, the individuals who developed this knowledge have largely remained anonymous.

The inscription was found on a stone slab within the ruins of Xultun [1]. The text appears alongside a complex astronomical formula used to predict the orbital cycles of Venus and Mars [2]. This pairing suggests a direct link between the individual and the scientific work recorded on the stone.

Experts estimate the inscription dates to between 1,200 [2] and 1,250 [3] years ago, placing it around 800 CE. This era falls within the Classic Maya period, which spanned from 250 to 900 CE [4].

"This is the first direct mention of an ancestral Maya astronomer-mathematician by personal name," Franco Rossi said [2].

The identification of Sak Tahn Waax allows researchers to move beyond general cultural analysis and begin attributing specific mathematical achievements to a named person. The Xultun site has previously yielded evidence of advanced Maya calculations, but the addition of a personal identity adds a human dimension to the technical data [1].

By linking a specific name to the orbital formulas of Mars and Venus, the find confirms that astronomical expertise was recognized as a distinct professional or social role within Maya society [2].

This is the first direct mention of an ancestral Maya astronomer-mathematician by personal name.

The identification of Sak Tahn Waax shifts the study of Maya science from the abstract to the biographical. By attributing complex planetary formulas to a specific individual, historians can better understand how scientific knowledge was transmitted, credited, and institutionalized in the Classic Maya period. This discovery suggests that astronomer-mathematicians held a recognized status that warranted permanent recording alongside their intellectual contributions.