This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
The Books of Chilam Balam exist because a colonized people found a way to keep writing their own history using the very alphabet their colonizers had brought. After the Spanish conquest suppressed hieroglyphic writing and burned what earlier books they found, Yucatec Maya scribes in town after town began keeping new manuscripts in their own language, but now in the Latin letters missionaries had taught for religious instruction, and used those letters to preserve a very different kind of content: dynastic memory, calendar reckoning, prophecy, medicine, quietly folded in among material that would pass a casual colonial inspection.
That mixed content is the books' most distinctive feature and the reason no two of them read alike. Each town kept its own book, and each book grew however its particular scribes chose over generations, so the Chumayel manuscript and the Tizimin manuscript, though they share a genre and a naming convention, are genuinely different documents with different material, different omissions and different states of preservation. There was never one Book of Chilam Balam to lose or to recover; there were, and remain, several.
Ralph Roys's translation of the Chumayel book, still the standard scholarly entry point into the genre, treats its subject with exactly the caution that kind of plural, locally rooted survival deserves: as one town's version of a shared genre, not as the definitive text of a tradition that never had one.