Every fact on FactFusion AI that an editor has checked against its source is free to download and reuse. There are 208 verified facts in the dataset today, each with its claim, a short answer, an explanation, the sources it was checked against and the date it was verified.
License: CC BY 4.0
You may copy, share and adapt the facts for any purpose, including commercial use, as long as you credit us with a link. Read the CC BY 4.0 license.
Suggested credit:
Facts from FactFusion AI (https://factfusionai.com/), CC BY 4.0
The license covers our own text: titles, claims, short answers and explanations. The source pages we link to belong to their publishers and keep their own licenses.
What is in the dataset
Only facts that are published on the site and marked verified. Drafts, facts waiting for review and withdrawn facts are left out. Categories: Animal (33), Space (26), History (22), Ocean (20), Science (16), Nature (15), Food (15), Human Body (13), Technology (12), Geography (12), Weird (12), Psychology (12).
| Field | What it means |
|---|---|
id, number | Our ID and the fact’s number on the site. |
title | The fact as a headline. |
question | The question the fact answers, where we have written one. |
claim | The single claim that was checked against the source. |
short_answer, explanation | A one or two sentence answer, and the longer explanation from the fact page (plain text). |
category, category_slug | The subject the fact is filed under. |
url | The fact’s page on our site. Please link here when you credit us. |
sources | Name, title, link and tier of each source. In the CSV these are source_names, source_urls and source_tiers, separated by |. |
confidence | The editor’s confidence score out of 100. |
verified_date, verified_by | When the fact was last checked against its source, and by whom. |
date_published, date_modified | When the fact went live, and when its text last changed. |
ai_assisted | Whether AI helped draft the wording. An editor still checked it against the source. |
Source tiers: A is a government science agency or peer-reviewed research, B is a respected reference work such as an encyclopedia, C and D are other publishers. How we verify facts.
Other ways to use the facts
- Facts API: random facts, search and categories as JSON, free with no key.
- Change log and corrections: what changed in the facts, and when.
- Found a mistake? Use “Report a problem with this fact” on the fact’s page and we will check it against the source.