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Bodhastra
Your birth date

Date-only systems resolve immediately. Systems that require a birth time or place will say so instead of guessing.

Traditions to include

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The twelve sun signs, from Babylonian star lists through Ptolemy to the newspaper horoscope.

Facts & origins · accretions

Lucky numbers agree with nothing

You can tell a real tradition from something bolted on later by counting how much the sources agree with each other. Nobody publishes that count. Here it is.


The measurement

For each field: how many distinct sign-and-value pairs exist across the twelve signs, against how many times any source states one. Where the two numbers are close, effectively every source is saying something different.

Distinct values against attestations, all twelve signs.
fielddistinct valuesattestationsoldest source
element12114antiquity
modality12129antiquity
polarity1278antiquity
lucky Number6468modern only
lucky Colour5089modern only
stone3049modern only
flower1722modern only
metal1111modern only
tarotCard44modern only

Twelve values, or 64

Element, modality and polarity manage exactly twelve values each — one per sign — across more than a hundred attestations spanning every century in the corpus. Every source that states them states the same thing.

Lucky numbers manage 64 distinct values across 68 attestations. That is very nearly one new answer per source, and not one source older than 1929 mentions them at all.

Neither of those is a reason to stop enjoying a birthstone. It is a reason not to be told it is ancient, and a reason the correspondence table on every sign page is banded by what kind of claim each row is rather than printing them all in one list at one weight.