Our sources

We only publish numbers we can trace to a primary source: the original study, official statistics, or the organization's own reporting. Secondary retellings, influencer polls, and unattributed "studies show" claims are rejected at the fact-gate.

Primary sources currently cited

What we rejected, and why

This list matters as much as the one above. Dating vocabulary attracts confident origin stories — a coiner, a first printed use, a year — that repeat across trend pieces and trace back to nothing. Claims we could not follow to a primary record are named here instead of being printed as fact anywhere on this site.

The rules

  1. Named source in the same sentence as the number, with the year.
  2. Primary source only — we link the origin, not an article about it.
  3. Dated verification: every statistic carries its verification date on the statistics page.
  4. Unverifiable → unpublished. No exceptions.