"...[A] complex, carefully argued, and convincing reassessment of Maya archaeoastronomy, cosmology, and writing....This new analysis reveals the historically contextualized human agency of Maya kings and provides a more sophisticated description of the functions of Maya astronomers."
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C.C. Colb, CHOICE Magazine
"Aldana has constructed an intriguing explanation for the invention, deployment, and historical associations of the 819 day count."
- Clemency Coggins, Journal of the History of Astronomy