Filter the correspondence dataset
Every attestation on this site in one grid — number, tradition, what is claimed, how strongly it is supported, and where to check it. Filter by any combination, then export exactly what you are looking at.
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| N | Tradition | Attestation | Grade | Source |
|---|---|---|---|---|
| Loading… | ||||
What a grade means here
A grade of verified says the tradition demonstrably makes this claim and you can check it in the cited source. It does not say the claim is true about the world: “seven heavens” is a verified attestation and not a cosmological finding. Disputed means a competing explanation is at least as good as the one the claim assumes, and the row says which.
The underlying file is public and licensed for reuse — see the data page.
Open Data
The same dataset as versioned JSON and CSV, licensed CC BY-SA 4.0.
Number Lookup
Single-number view with computed mathematical properties.
Sacred Numbers
The comparative essays this dataset was extracted from.
Testing the Patterns
Why the grades are assigned the way they are.
Cite this page
Formatted references for this page. The evidence grade is part of the claim — when quoting a graded statement, carry the grade with it.