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11,491 facts. Click any fact to see its full page.
All 11,491
📜 History 1,991
🔬 Science 1,964
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🧠 Psychology 893
🌿 Nature 759
💻 Technology 735
🌍 Geography 599
🎭 Culture 581
🫀 Human Body 572
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💬 Language 245
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✨ General 68
✨ Dinosaur 10
Russia is so large it spans 11 time zones.
Canada has more lakes than every other country combined.
More people in the world have access to a mobile phone than to a toilet.
The internet weighs approximately 50 grams — the weight of the electrons in motion.
About 3.5 billion Google searches happen every day.
The first computer mouse was made of wood.
YouTube was originally designed as a video dating site.
The Voyager probes run on software that can be patched from Earth, over 14 billion miles away.
A single Google search uses enough energy to power a 60-watt lightbulb for 17 seconds.
GPS is so precise that it must account for Einstein's theory of relativity to remain accurate.
The first text message was sent in 1992 and read 'Merry Christmas'.
Nintendo was founded in 1889 — originally as a playing card company.
Wi-Fi was partly invented using math developed to detect mini black holes.
The first domain name ever registered was symbolics.com, in 1985.
The term 'bug' in software was popularized by Grace Hopper, a pioneering computer scientist.
The QWERTY keyboard layout was designed partly to slow typists down and prevent typewriter jams.
There are more transistors in a modern CPU than neurons in a human brain.
The original iPhone had less processing power than a modern dishwasher.
Email was invented before the World Wide Web.
About 90% of all the data in the world was created in the last two years.
The first website ever created is still online at info.cern.ch.
The first computer bug was an actual insect — a moth found in a Harvard Mark II computer in 1947.
The brain generates about 23 watts of power — enough to power a small lightbulb.
People make about 35,000 decisions per day.
Chronic loneliness is as harmful to health as smoking 15 cigarettes a day.
The mere exposure effect: people tend to develop preferences for things simply because they're familiar.
Fear of long words is called hippopotomonstrosesquippedaliophobia.
Hypnosis is a real, measurable neurological state — not just performance.
The brain physically changes structure based on how you use it — called neuroplasticity.
Color can influence perception of taste: wine tasted from a blue glass is rated differently than from a clear one.
People are more creative in the early morning and late at night — when analytical thinking is reduced.
Music can trigger the brain's reward system as powerfully as food or sex.
Nostalgia was once classified as a medical disorder — soldiers were diagnosed with it in the 17th century.
Humans tend to remember uncompleted tasks better than completed ones — the Zeigarnik effect.
Decision fatigue is real — judges give harsher rulings later in the day when mentally depleted.
The placebo effect works even when patients know they're taking a placebo.
Sleep deprivation has similar effects on the brain as alcohol intoxication.
The bystander effect: the more people present in an emergency, the less likely any one person is to help.
False memories are extremely easy to implant — studies show people can be convinced they committed crimes they didn't.
Humans are the only animals known to cry emotional tears.
The Dunning-Kruger effect: people with limited knowledge tend to overestimate their own competence.
The brain can't actually multitask — it rapidly switches between tasks, creating the illusion of multitasking.
The word 'salary' comes from 'sal' (salt) — Roman soldiers were sometimes paid in salt.
The Mongol Empire was the largest contiguous land empire in history.
The bubonic plague killed 30–60% of Europe's population in the 14th century.
Julius Caesar was once kidnapped by pirates, and after his release, he raised a fleet to capture and crucify them.
Benjamin Franklin never patented any of his inventions — he believed they should be freely shared.
Marie Curie's notebooks are still so radioactive they're kept in lead-lined boxes and require signed waivers to view.
The Roman Empire at its height contained about 20–25% of the world's total population.
In ancient Egypt, workers who built the pyramids were paid workers, not slaves.