The Tzolk'in calendar and its day-signs. Mesoamerican, and not derived from the old world at all.

This page is a seed. The full write-up is coming; for now it exists so the links that point here resolve, and so the shape of the codex is visible while it grows.

what belongs here

  • where and when it developed, in its own terms
  • what it shares with western astrology, and what it does not
  • the vocabulary a western reader will not recognise
  • where to read about it from inside the tradition