Fact Engines

Atlas Obscura ›

Strange places, weird histories, properly written long-form. A serious travel-and-curiosity publication since 2009.

Mental Floss ›

Daily fact-and-trivia publication. One fact a day on the homepage. Outlasted three ownership changes since 2001.

Nornlore ›

What history shares your birthday — 366 dates of events, people, music and film, styled as a magical newspaper.

Our World in Data ›

Oxford-affiliated data publication on global trends. Every claim properly sourced. Life Expectancy and Global Poverty are the most-shared.

A new true fact every tap, across ten genres — animals, space, history, the human body, food, geography, tech, weird, pop culture and true crime. Hand-picked, shuffled so nothing repeats, no signup. The rabbit hole on demand.

TIL on Reddit ›

Reddit's todayilearned subreddit. Highest-volume community-curated fact source on the internet. Sourcing required by subreddit rules.

FactRetriever ›

Verified daily fact, source-marked. The most-explicitly-verified fact engine — each fact labeled with category and source.

Information is Beautiful ›

David McCandless's portfolio of data visualizations. Some interactive, some static, all designed first.

Letters of Note ›

Shaun Usher's archive of correspondence deserving a wider audience. Newsletter format with a deep web archive.

ListVerse ›

Listicle-format fact site that's somehow stayed funny and well-researched for 15+ years. Top 10 lists with sourcing.

Now I Know ›

Dan Lewis's daily-fact email newsletter with the full archive on the web. One fact, one paragraph, properly sourced.

OMGFacts ›

High-volume social-fact site. Pop-culture and weird-fact register. Free with ads.

Public Domain Review ›

Curated archive of public-domain images, essays, and weird historical material. Run by historians. Updates regularly.

Random Fact Generator ›

Three random facts per click. Pure random-fact-generator format. Free, no signup, instant.

Snopes ›

The canonical fact-checking site. Use it to verify facts you read elsewhere — most common myths and viral claims have a Snopes entry.

Today I Found Out ›

Daily long-form fact deep-dives. 800-2000 words each, properly sourced. The original 'I just learned' site format.

Wikipedia DYK ›

Wikipedia's front-page rotates new short facts every 12 hours. Each links to a real article. The most reliably interesting short-form curiosity stream.

BBC Science Focus ›

BBC Science Focus's fun-facts section. Editorial-grade science facts with proper sourcing.

Internet Live Stats ›

Counters showing the internet at work right now. Tweets per second, emails sent today. Surprisingly meditative.

Hand-picked fact engines