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Bodhastra
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Tonalpohualli and the annual veintena count — distinct Nahuatl names with a disputed civil alignment.

facts · structure before interpretation

What the sources establish—and what they do not

The cycle sizes and sign order are clear. Their conversion into one universal modern calendar is not. These notes preserve that difference.

How the Tonalpohualli advances

Thirteen numbers, twenty Nahuatl signs and 260 distinct pairings, kept separate from Maya names.

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Veintenas and the Binding of Years

The Sahagún-family sequence, five nemontemi, the nominal 18,980-day conjunction and contested terminology.

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Why there is no date converter

Contradictory colonial alignments, modern model choices and evidence for observational seasonal adjustment.

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Bodhastra documents what astrological traditions have said, and when they started saying it. It is presented as cultural history and entertainment. Nothing here is medical, psychological, financial or predictive advice, and nothing here is a claim about what will happen to you.

Every source, listed

Place data from GeoNames, used under CC BY 4.0.