Mayan gender predictor
The pyramid people's answer to the Chinese chart: the Mayan method compares the parity (odd or even) of the mother's age at conception with the parity of the conception year — no lunar math required.
🏛️ The rule, as widely circulated
Odd + odd or even + even → girl · mixed parity → boy
Source variants exist (some swap the verdict) — like all folklore, consistency isn't its strong suit. Estimated accuracy: ~50%.
🏛️ Odd + odd or even + even → girl · mixed parity → boy
🍼 Entertainment only — a coin-flip tradition, not medicine.
Mayan vs. Chinese: which to trust?
Neither, medically — both converge to a coin flip when tested. But they disagree often, which makes running both a genuinely fun duel: if the Chinese chart and the Mayan parity rule agree, folklore wins the family table for a night; if they clash, the debate extends beautifully to delivery day.
Where the Mayans fit in the tradition
Unlike the chart (which claims Qing palace origins), the "Mayan predictor" as internet folklore is likely a 20th-century creation loosely inspired by the Maya vigesimal (base-20) love of numbers — no confirmed ancient manuscript survives. Its parity rule is deterministic, meaning it's honest about being arithmetic roulette.