Project contact
Contact and Corrections
How to report a source issue, calculation problem, accessibility barrier, or research correction.
Corrections welcomed
A useful report identifies the page, exact claim or output, proposed correction, and strongest available source. For unit values, include region and period. For monument dimensions, identify the survey reference points.
Contact route
Email [email protected]. This is the project's dedicated contact route.
What happens next
Corrections are checked against the source hierarchy, applied to canonical data where relevant, regenerated across every dependent page, and recorded in project history.
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