Was the Beginning Day of the Maya Month Numbered Zero (or Twenty) or One?

"Was the Beginning Day of the Maya Month Numbered Zero (or Twenty) or One?" by Charles P. (Charles Pickering) Bowditch is a scholarly exploration of the Mayan calendar system, with a special focus on deciphering how the Maya numbered the start of their months. Addressing a historical puzzle, the work analyzes Mayan texts, including the Dresden Codex and other inscriptions, to determine if the first day of a month was recognized as Day 0, Day 20, or Day 1. Bowditch's investigation supports the idea that the Maya initiated their months with Day 0, aligning with Goodman's interpretations and detailing how days were counted from zero to nineteen in the Mayan calendar.