We publish our audit record because accuracy claims should be checkable. Every entry on this site runs through an automated fact-audit pipeline (accuracy audit → source-grounded repair → visual QA); this page is generated from that pipeline's own report, not written by hand.
Last full accuracy audit: 2026-08-29 · 8 entries checked · 3 flagged · 6 issues confirmed · 3 corrected · 3 still open
Dot distribution map — The DID YOU KNOW section says 'The first claimed dot distribution map was created by Valentine Seaman in 1797', which contradicts the STATS section listing it as 'first_known_example', creating an inconsistency about whether it is genuinely the first or merely
Flow map — The entry states that Charles Joseph Minard published 51 thematic maps between the 1850s and 1870s, but his thematic maps actually span from the 1840s to the 1870s.
Flow map — The entry claims that Minard's 1869 map has been called 'the best statistical graphic ever drawn,' but the original quote by Edward Tufte includes the qualifying phrase 'may well be.'
Heat map — The term 'heat map' was trademarked in 1991 by software designer Cormac Kinney is incorrect: the trademark was filed in 1993 and registered in 1994, not trademarked in 1991.
Heat map — The first computer program to produce cluster heat maps with high-resolution color graphics was SYSTAT in 1994 is incorrect: the entry itself states SYSTAT was a general statistical package, not a dedicated cluster heat map program, and attributes the first de
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