Facts

Fascinating facts delivered daily

📅Today's Fact•Wednesday 6th May 2026

International passport control began as a temporary WWI measure and was never rolled back

International passport control started as a temporary measure during World War I, meant to stop spies and stop skilled workers from leaving. What's surprising is that this wartime emergency was never reversed, and it's how we ended up with the strict border checks we have today.

Read Full Article

Recent Facts

View all facts

Tuesday 5th May 2026

Fake hair is North Korea’s biggest export, accounting for 46.5% of exports (~$188 million)

Fake hair, like false eyelashes and wigs, is North Korea's biggest export. This is interesting because it shows how the country is finding ways around international sanctions by producing these items, which are then sent to China to be sold globally.

Monday 4th May 2026

A 10-second kiss can transfer about 80 million bacteria between partners

A ten-second kiss swaps around 80 million bacteria between people. What's really neat is that the more often couples kiss, the more their mouth bacteria start to become similar, which could even help their immune systems and digestion.

Sunday 3rd May 2026

A recent study found thinking in a foreign language can reduce some decision biases. Extra mental distance seems to soften emotional framing effects.

Thinking in a foreign language helps you make more rational decisions by creating a psychological distance from your emotions. This is interesting because your native language is tied up with feelings, and using another language can help you avoid common thinking errors and make better choices.

Saturday 2nd May 2026

Astronomers say some large moons could theoretically host their own moons. These submoons seem possible, even if none has been confirmed.

This fact explains that astronomers think some large moons could potentially have their own moons orbiting them, which are being called "submoons". It's fascinating because it suggests a more complex arrangement of celestial bodies than we usually imagine, and it's possible even in our own solar sys

Friday 1st May 2026

A recent study found workers can often get as much done in four days as five. Shorter weeks improved well-being without hurting output.

This fact shows that many jobs can actually be done just as effectively in four days as in five, without dropping productivity. It's interesting because it challenges the old idea that we need to work long hours to get things done, suggesting our current working week could be shortened to boost peop

Thursday 30th April 2026

Research shows social rejection activates brain regions involved in physical pain. Being left out really can hurt in more than a metaphorical sense.

This research shows that being socially rejected actually activates the same parts of the brain that deal with physical pain. This is interesting because it explains why feeling left out can be so genuinely painful, suggesting our need to belong is as fundamental as our need for safety.