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A free, collaborative, multilingual internet encyclopedia.

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When news breaks or curiosity strikes, people around the world turn to a free volunteer-run encyclopedia to make sense of what’s happening. In a chaotic online landscape, Wikipedia remains a trusted first stop destination for millions worldwide.
Remember when social feeds started serving up AI crocodiles and spaghetti cats with faux Italian names? Why? 🧵⬇️ (1/4)
December 6, 2025 at 12:25 PM
Feeling guilty about the never-ending pile of unread books taking space on your shelf? Just say you are practicing tsundoku!

Wikipedia's tsundoku article is considered a stub, or a very basic description of the topic. Consider improving it with reliable sources ➡️ w.wiki/7vhv
December 5, 2025 at 1:07 PM
Wikipedia is a reflection of the world and the people who live in it.

Topics ranging from serious news to pop culture (and everything in between) rise to prominence on Wikipedia as curious people want to learn more.
December 4, 2025 at 3:21 PM
Brains often act like hype men for their own beliefs.

Confirmation bias is our tendency to favor information that supports what we already think while dismissing what does not.

Challenge your beliefs ➡️ w.wiki/J7S
December 3, 2025 at 12:02 PM
When news breaks or curiosity strikes, people around the world turn to a free volunteer-run encyclopedia to make sense of what’s happening. In a chaotic online landscape, Wikipedia remains a trusted first stop destination for millions worldwide.
December 2, 2025 at 12:14 PM
AI is powered by Wikipedia, the world’s greatest online knowledge resource. For 25 years, editors around the world have shaped the knowledge that shapes the future. #Wikipedia25
December 1, 2025 at 7:02 PM
Candlelit corners, warm blankets, and quiet moments have their own special word in Danish.

“Hygge” describes a cozy, contented mood created by comfort and conviviality. 🧵⬇️ (1/3)
December 1, 2025 at 12:20 PM
After first being proposed in 1932, the Universal Product Code was used to scan its first ever product in June 1974. The purchase? A 67 cent pack of gum. Discover the fascinating composition that keeps track of your purchases ➡️ w.wiki/8WaG
November 28, 2025 at 1:18 PM
Squash and pumpkin are culinary chameleons, appearing even where you do not expect them.
November 27, 2025 at 1:43 PM
In the early 20th century, city parents devised a way to give babies fresh air without yards or balconies: the baby cage.

Popular in 1920s–30s London and New York, they were marketed as modern childcare and even supplied by councils.

Hang out at the article for more knowledge ➡️ w.wiki/FaXp
November 24, 2025 at 1:33 PM
The knight’s tour is a puzzle where a knight must visit every square of a chessboard exactly once, following its L-shaped movement pattern.

Documented since the Middle Ages, it links to graph theory, combinatorics, and recreational mathematics. 🧵⬇️ (1/3)
November 22, 2025 at 3:01 PM
25 years of humanity at its best. #Wikipedia25

Donate now ➡️ donate.wikipedia25.org
November 21, 2025 at 8:09 PM
Can you repeat this without losing your breath?

In New Zealand, the hill Taumatawhakatangihangakoauauotamateaturipukakapikimaungahoronukupokaiwhenuakitanatahu has gained a measure of fame as it is the longest place name found in any English-speaking country.

Get tongue twisted ➡️ w.wiki/3BMr
November 21, 2025 at 3:43 PM
Do you have someone who is not quite a friend, not quite an enemy? Tag them. (Just kidding.) 

The word "frenemy" combines the two roles to describe someone with whom one remains cordial despite underlying tension or rivalry.

Shake hands with more knowledge ➡️ w.wiki/_zL2d
November 20, 2025 at 2:13 PM
CROATOAN 🌲

This English attempt to settle in North America ended with a mystery. 

In 1587, settlers established a colony on Roanoke Island, now part of North Carolina. Governor John White returned to England for supplies and did not make it back for three years due to war. 🧵⬇️ (1/3)
November 19, 2025 at 12:21 PM
In South Asian folklore, bhootas are restless spirits believed to linger after death.

People protect themselves by hanging charms, placing iron objects by doorways, or burning turmeric. Stories warn against walking alone and blend fear and humor.

Get more bhoota facts ➡️ w.wiki/FLhg
November 18, 2025 at 12:59 PM
Still free, neutral, open, and human. #Wikipedia25

Donate now ➡️ donate.wikipedia25.org
November 17, 2025 at 6:11 PM
On this day in 2019, NASA astronaut Christina Koch made the first edit to a Wikipedia article from outer space 🚀

Koch corrected details in the description of the spacewalk tasks in the "List of spacewalks 2015–2024" article (titled "List of spacewalks since 2015" at the time).
November 17, 2025 at 10:04 AM
The Banach–Tarski paradox is a theorem in set‑theoretic geometry.

It shows a solid ball can be divided into a finite number of pieces and reassembled into two identical balls without stretching or adding material. 🧵⬇️ (1/3)
November 16, 2025 at 8:39 PM
Few facial features have shifted fashion as much as the moustache.

From French, Italian, and Greek roots, this strip of hair above the lip has stood for style, maturity, and authority across cultures.

More ➡️ w.wiki/C5jq
November 15, 2025 at 11:10 AM
This fishing method has stuck around due to strong community efforts and cultural preservation initiatives. Only a handful of families still practice it, and they’ve turned it into both a living tradition and a tourist spectacle.

Learn more ➡️ w.wiki/G5mJ
November 14, 2025 at 3:18 PM
The future of knowledge is yours to protect. #Wikipedia25

Donate now ➡️ donate.wikipedia25.org
November 10, 2025 at 3:10 PM
Sound can do more than carry music; high‑intensity sound waves can lift small objects. Acoustic levitation uses standing sound waves to suspend solids, liquids, or droplets in midair. 🧵⬇️ (1/4)
November 9, 2025 at 4:03 PM
City transit is not just for humans.

These animals are not commuting for work; they are seeking comfort, food, and safety. Their behavior highlights how urban wildlife adapts to human environments. It also challenges our ideas about public space. 

Hitch a ride to more info ➡️ w.wiki/FP3C
November 8, 2025 at 1:50 PM
Ever seen a car smile at you? That's apophenia.

From faces on Mars to Jesus on toast, these curiosities likely stem from mistaken identification and our brains’ overinterpretation of what our eyes see.

Learn more about our brains' desire to make connections and identify patterns ➡️ w.wiki/4wUF
November 7, 2025 at 1:21 PM