SOURCE THE CLAIM
Important factual claims should be traceable to source material. Aha prioritizes primary, institutional and reputable secondary sources when they are available.
How we know
what we say.
Aha is built around a simple rule: a surprising story is more useful when the evidence is visible.
LABEL THE IMAGE
Historical photographs, maps and archival material should carry attribution or source context. Generated or reconstructed visuals should not be presented as documentary evidence.
SHOW UNCERTAINTY
When accounts disagree, dates are approximate or evidence is incomplete, the story should say so rather than flattening uncertainty into certainty.
CORRECT THE RECORD
Aha stories are living knowledge objects. Better evidence should improve the story rather than being hidden by an old version.
PREFERRED EVIDENCE
What Aha looks for
Government and institutional records · museum and archive collections · academic work · historic maps and photographs · established reference works · reputable journalism · official place information.