QuoAnno

Contribute to the timeline

Suggest a moment for QuoAnno.

Know an event that belongs on the timeline? Send the date, the story, and a source. Every submission is reviewed by an editor and is not added to the game automatically.

See how dates work in QuoAnno →
  1. 01
    Suggest the moment

    Write a clear event and place it in BC or AD.

  2. 02
    Check the date and source

    Editors verify the claim, uncertainty, wording, and reusable imagery.

  3. 03
    Editorial review

    Accepted ideas are rewritten and added through QuoAnno's normal data-validation process.

Your suggestion

Place one moment on the timeline.

Use your own wording and include a reliable source. Fields without an Optional label are required.

01 The moment

Write a specific event rather than a broad era or biography.

02 The date

Choose “Approximate date” when evidence supports an estimate rather than an exact year. QuoAnno uses BC and AD.

03 The explanation
04 The evidence

Prefer a museum, archive, university, scientific institution, reference work, or carefully sourced publication.

No account or email address is required.