Wikimedia Foundation
@wikimediafoundation.org
We are the nonprofit organization that hosts Wikipedia and other free knowledge projects. Working to create a world where every human can freely share in the sum of all knowledge.
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What AI creates depends on what humans have already documented, verified, and made available to everyone.
That’s why @wikipedia.org’s role as the backbone of all knowledge on the internet has never been more important. #Wikipedia25
Learn more ➡️ wikimediafoundation.org/wikipedia-va...
That’s why @wikipedia.org’s role as the backbone of all knowledge on the internet has never been more important. #Wikipedia25
Learn more ➡️ wikimediafoundation.org/wikipedia-va...
Mateusz Kopeć's journey with the Wikimedia movement shows that dedication, curiosity, and a willingness to learn can lead from a single punctuation fix to a role safeguarding Wikipedia.
His work got him recognized as the 2025 Functionary of the Year 🎊
His work got him recognized as the 2025 Functionary of the Year 🎊
November 25, 2025 at 1:45 PM
Mateusz Kopeć's journey with the Wikimedia movement shows that dedication, curiosity, and a willingness to learn can lead from a single punctuation fix to a role safeguarding Wikipedia.
His work got him recognized as the 2025 Functionary of the Year 🎊
His work got him recognized as the 2025 Functionary of the Year 🎊
What happens when a global community of volunteers comes together to make a free library? You get Wikisource, a digital library of public domain and freely licensed texts, films, and more.
Join the celebration by exploring Wikisource – and maybe transcribing a page yourself ➡️ w.wiki/XWE
Join the celebration by exploring Wikisource – and maybe transcribing a page yourself ➡️ w.wiki/XWE
November 24, 2025 at 12:49 PM
What happens when a global community of volunteers comes together to make a free library? You get Wikisource, a digital library of public domain and freely licensed texts, films, and more.
Join the celebration by exploring Wikisource – and maybe transcribing a page yourself ➡️ w.wiki/XWE
Join the celebration by exploring Wikisource – and maybe transcribing a page yourself ➡️ w.wiki/XWE
A major milestone for open knowledge in South America: a local Wikimedia initiative has been selected as one of the top 10 projects supported by UNESCO’s Global Initiative for Information Integrity on Climate Change.
Read more ➡️ w.wiki/GC4c
Read more ➡️ w.wiki/GC4c
November 21, 2025 at 3:34 PM
A major milestone for open knowledge in South America: a local Wikimedia initiative has been selected as one of the top 10 projects supported by UNESCO’s Global Initiative for Information Integrity on Climate Change.
Read more ➡️ w.wiki/GC4c
Read more ➡️ w.wiki/GC4c
How does a website with no corporate advertising and no paywall stay online?
Only 2% of readers give, but this small group makes all the difference. This grassroots support keeps Wikipedia independent and free.
If you can, donate today ➡️ wikimediafoundation.org/give/
Only 2% of readers give, but this small group makes all the difference. This grassroots support keeps Wikipedia independent and free.
If you can, donate today ➡️ wikimediafoundation.org/give/
November 20, 2025 at 2:29 PM
How does a website with no corporate advertising and no paywall stay online?
Only 2% of readers give, but this small group makes all the difference. This grassroots support keeps Wikipedia independent and free.
If you can, donate today ➡️ wikimediafoundation.org/give/
Only 2% of readers give, but this small group makes all the difference. This grassroots support keeps Wikipedia independent and free.
If you can, donate today ➡️ wikimediafoundation.org/give/
Every factual claim on Wikipedia must be verifiable, backed by reliable sources – independent, published works with a reputation for fact‑checking and accuracy.
Learn more about Wikipedia's policies to protect against misinformation ➡️ w.wiki/FVY
Learn more about Wikipedia's policies to protect against misinformation ➡️ w.wiki/FVY
November 19, 2025 at 4:04 PM
Every factual claim on Wikipedia must be verifiable, backed by reliable sources – independent, published works with a reputation for fact‑checking and accuracy.
Learn more about Wikipedia's policies to protect against misinformation ➡️ w.wiki/FVY
Learn more about Wikipedia's policies to protect against misinformation ➡️ w.wiki/FVY
Robert Sim’s story shows that you can start with a small correction – a broken URL, in his case – and eventually help coordinate a global conference.
For his tireless efforts helping our movement thrive, User:Robertsky was awarded the 2025 Wikimedian of the Year award 🎊
For his tireless efforts helping our movement thrive, User:Robertsky was awarded the 2025 Wikimedian of the Year award 🎊
November 18, 2025 at 12:41 PM
Robert Sim’s story shows that you can start with a small correction – a broken URL, in his case – and eventually help coordinate a global conference.
For his tireless efforts helping our movement thrive, User:Robertsky was awarded the 2025 Wikimedian of the Year award 🎊
For his tireless efforts helping our movement thrive, User:Robertsky was awarded the 2025 Wikimedian of the Year award 🎊
Reposted by Wikimedia Foundation
November 17, 2025 at 6:11 PM
In Nigeria, Wiki for Minorities helps contributors use Wikipedia and its sister projects to document, bring awareness, and digitally preserve languages considered minor or small.
Learn how this effort preserves stories, culture, and knowledge ➡️ w.wiki/FwP9
Learn how this effort preserves stories, culture, and knowledge ➡️ w.wiki/FwP9
November 17, 2025 at 5:37 PM
In Nigeria, Wiki for Minorities helps contributors use Wikipedia and its sister projects to document, bring awareness, and digitally preserve languages considered minor or small.
Learn how this effort preserves stories, culture, and knowledge ➡️ w.wiki/FwP9
Learn how this effort preserves stories, culture, and knowledge ➡️ w.wiki/FwP9
What began as a one-day field trip to the newly-reopened Egyptian Agricultural Museum turned into a harvest of knowledge documenting ancient farming tools, ceramics, and more.
Learn how Egypt Wikimedians are documenting history and culture ➡️ w.wiki/Fm3X
Learn how Egypt Wikimedians are documenting history and culture ➡️ w.wiki/Fm3X
November 14, 2025 at 4:49 PM
What began as a one-day field trip to the newly-reopened Egyptian Agricultural Museum turned into a harvest of knowledge documenting ancient farming tools, ceramics, and more.
Learn how Egypt Wikimedians are documenting history and culture ➡️ w.wiki/Fm3X
Learn how Egypt Wikimedians are documenting history and culture ➡️ w.wiki/Fm3X
Kindness is not just a feeling. On Wikipedia, it is a policy.
Editors are encouraged to "assume good faith". This simple guideline means believing that other editors are trying to improve the project, not harm it. Read about the good faith policy ➡️ w.wiki/_2X
Editors are encouraged to "assume good faith". This simple guideline means believing that other editors are trying to improve the project, not harm it. Read about the good faith policy ➡️ w.wiki/_2X
November 13, 2025 at 12:27 PM
Kindness is not just a feeling. On Wikipedia, it is a policy.
Editors are encouraged to "assume good faith". This simple guideline means believing that other editors are trying to improve the project, not harm it. Read about the good faith policy ➡️ w.wiki/_2X
Editors are encouraged to "assume good faith". This simple guideline means believing that other editors are trying to improve the project, not harm it. Read about the good faith policy ➡️ w.wiki/_2X
What AI creates depends on what humans have already documented, verified, and made available to everyone.
That’s why @wikipedia.org’s role as the backbone of all knowledge on the internet has never been more important. #Wikipedia25
Learn more ➡️ wikimediafoundation.org/wikipedia-va...
That’s why @wikipedia.org’s role as the backbone of all knowledge on the internet has never been more important. #Wikipedia25
Learn more ➡️ wikimediafoundation.org/wikipedia-va...
November 12, 2025 at 5:35 PM
What AI creates depends on what humans have already documented, verified, and made available to everyone.
That’s why @wikipedia.org’s role as the backbone of all knowledge on the internet has never been more important. #Wikipedia25
Learn more ➡️ wikimediafoundation.org/wikipedia-va...
That’s why @wikipedia.org’s role as the backbone of all knowledge on the internet has never been more important. #Wikipedia25
Learn more ➡️ wikimediafoundation.org/wikipedia-va...
November 10, 2025 at 3:19 PM
Happy birthday, Meta-Wiki 🎉
If Wikipedia is the encyclopedia anyone can edit, Meta‑Wiki is where those editors meet to plan, discuss, and dream. Dive into Meta‑Wiki and see how global collaboration comes to life ➡️ w.wiki/37o
If Wikipedia is the encyclopedia anyone can edit, Meta‑Wiki is where those editors meet to plan, discuss, and dream. Dive into Meta‑Wiki and see how global collaboration comes to life ➡️ w.wiki/37o
November 9, 2025 at 1:09 PM
Happy birthday, Meta-Wiki 🎉
If Wikipedia is the encyclopedia anyone can edit, Meta‑Wiki is where those editors meet to plan, discuss, and dream. Dive into Meta‑Wiki and see how global collaboration comes to life ➡️ w.wiki/37o
If Wikipedia is the encyclopedia anyone can edit, Meta‑Wiki is where those editors meet to plan, discuss, and dream. Dive into Meta‑Wiki and see how global collaboration comes to life ➡️ w.wiki/37o
In five Philippine provinces, a digitization project is making local laws and ordinances accessible to anyone with an Internet connection.
Learn how transparency will make laws visible and searchable to all ➡️ w.wiki/FwQw
Learn how transparency will make laws visible and searchable to all ➡️ w.wiki/FwQw
November 7, 2025 at 1:25 PM
In five Philippine provinces, a digitization project is making local laws and ordinances accessible to anyone with an Internet connection.
Learn how transparency will make laws visible and searchable to all ➡️ w.wiki/FwQw
Learn how transparency will make laws visible and searchable to all ➡️ w.wiki/FwQw
User:Wadakuramon, librarian and Wikipedia enthusiast with a knack for writing and translating content, hopes to inspire others to join the Wikimedia movement.
Learn why ➡️ w.wiki/FwQW
Learn why ➡️ w.wiki/FwQW
November 6, 2025 at 2:42 PM
User:Wadakuramon, librarian and Wikipedia enthusiast with a knack for writing and translating content, hopes to inspire others to join the Wikimedia movement.
Learn why ➡️ w.wiki/FwQW
Learn why ➡️ w.wiki/FwQW
Amid misinformation, Wikipedia's volunteer community stands out. Editors uphold neutrality, verify sources, and log every edit.
Without corporate ads, its scale and transparent governance make it a beacon of trust. Learn more ➡️ w.wiki/7zfT
Without corporate ads, its scale and transparent governance make it a beacon of trust. Learn more ➡️ w.wiki/7zfT
November 5, 2025 at 7:06 PM
Amid misinformation, Wikipedia's volunteer community stands out. Editors uphold neutrality, verify sources, and log every edit.
Without corporate ads, its scale and transparent governance make it a beacon of trust. Learn more ➡️ w.wiki/7zfT
Without corporate ads, its scale and transparent governance make it a beacon of trust. Learn more ➡️ w.wiki/7zfT
After Paris 2026, Wikimania will head to South America in 2027 🌎
Wikimania Santiago will take place in mid-2027, with exact dates to be announced next year. It will be the third time the event is held in Latin America, following Buenos Aires in 2009 and Mexico City in 2015. Learn more ➡️ w.wiki/FwD9
Wikimania Santiago will take place in mid-2027, with exact dates to be announced next year. It will be the third time the event is held in Latin America, following Buenos Aires in 2009 and Mexico City in 2015. Learn more ➡️ w.wiki/FwD9
November 4, 2025 at 3:48 PM
After Paris 2026, Wikimania will head to South America in 2027 🌎
Wikimania Santiago will take place in mid-2027, with exact dates to be announced next year. It will be the third time the event is held in Latin America, following Buenos Aires in 2009 and Mexico City in 2015. Learn more ➡️ w.wiki/FwD9
Wikimania Santiago will take place in mid-2027, with exact dates to be announced next year. It will be the third time the event is held in Latin America, following Buenos Aires in 2009 and Mexico City in 2015. Learn more ➡️ w.wiki/FwD9
Pop hits and @wikipedia.org articles are complementary, offering tunes and facts that paint a picture of artistic invention and public reception.
In this essay by Stephen Harrison, learn how editors keep #1 hits in rotation, ready for fans' discovery ➡️ www.stephenharrison.com/p/the-surpri...
In this essay by Stephen Harrison, learn how editors keep #1 hits in rotation, ready for fans' discovery ➡️ www.stephenharrison.com/p/the-surpri...
!["As [KPop Demon Hunters] took off in popular culture, becoming Netflix’s most-watched film, the Wikipedia page followed suit. If that’s how it works for a movie musical in 2025, does the same dynamic apply to historical pop songs?" Quote by Stephen Harrison, 10 September 2025.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:vwdzejaw4wkxh2wvkjlcubal/bafkreierlesihxxnoqnazz75sofikixcaztuoffqakk2sbwcqo2n5xpqtm@jpeg)
October 31, 2025 at 3:39 PM
Pop hits and @wikipedia.org articles are complementary, offering tunes and facts that paint a picture of artistic invention and public reception.
In this essay by Stephen Harrison, learn how editors keep #1 hits in rotation, ready for fans' discovery ➡️ www.stephenharrison.com/p/the-surpri...
In this essay by Stephen Harrison, learn how editors keep #1 hits in rotation, ready for fans' discovery ➡️ www.stephenharrison.com/p/the-surpri...
Wikidata has been recognized as a digital public good by the Digital Public Goods Alliance (DPGA) 🎉
Learn how Wikidata, which houses over 1.6 billion facts, advances education, innovation, and public institutions ➡️ wikimediafoundation.org/news/2025/10...
Learn how Wikidata, which houses over 1.6 billion facts, advances education, innovation, and public institutions ➡️ wikimediafoundation.org/news/2025/10...
October 29, 2025 at 6:24 PM
Wikidata has been recognized as a digital public good by the Digital Public Goods Alliance (DPGA) 🎉
Learn how Wikidata, which houses over 1.6 billion facts, advances education, innovation, and public institutions ➡️ wikimediafoundation.org/news/2025/10...
Learn how Wikidata, which houses over 1.6 billion facts, advances education, innovation, and public institutions ➡️ wikimediafoundation.org/news/2025/10...
Happy 13th birthday, Wikidata!
Facts do not live in isolation; they form a web of connections that shape understanding. Thirteen years ago, Wikidata was created to store and link facts across Wikipedia and its sister projects. ➡️ w.wiki/Jg
Facts do not live in isolation; they form a web of connections that shape understanding. Thirteen years ago, Wikidata was created to store and link facts across Wikipedia and its sister projects. ➡️ w.wiki/Jg
October 29, 2025 at 11:24 AM
Happy 13th birthday, Wikidata!
Facts do not live in isolation; they form a web of connections that shape understanding. Thirteen years ago, Wikidata was created to store and link facts across Wikipedia and its sister projects. ➡️ w.wiki/Jg
Facts do not live in isolation; they form a web of connections that shape understanding. Thirteen years ago, Wikidata was created to store and link facts across Wikipedia and its sister projects. ➡️ w.wiki/Jg
Transparency makes @wikipedia.org one of the most trusted sources of information on the internet.
From History tabs tracking every edit to Talk pages revealing editors’ discussions, Wikipedia runs on consensus decision-making that is visible to everyone.
Learn more ➡️ medium.com/freely-shari...
From History tabs tracking every edit to Talk pages revealing editors’ discussions, Wikipedia runs on consensus decision-making that is visible to everyone.
Learn more ➡️ medium.com/freely-shari...
October 28, 2025 at 2:55 PM
Transparency makes @wikipedia.org one of the most trusted sources of information on the internet.
From History tabs tracking every edit to Talk pages revealing editors’ discussions, Wikipedia runs on consensus decision-making that is visible to everyone.
Learn more ➡️ medium.com/freely-shari...
From History tabs tracking every edit to Talk pages revealing editors’ discussions, Wikipedia runs on consensus decision-making that is visible to everyone.
Learn more ➡️ medium.com/freely-shari...
What does public policy have to do with free knowledge? A lot more than you might think.
The Wikimedia Foundation works globally to support laws and policies that protect and promote access to knowledge online and human rights.
Learn more with our Global Advocacy team ➡️ mailchi.mp/wikimedia/gl...
The Wikimedia Foundation works globally to support laws and policies that protect and promote access to knowledge online and human rights.
Learn more with our Global Advocacy team ➡️ mailchi.mp/wikimedia/gl...
October 27, 2025 at 1:37 PM
What does public policy have to do with free knowledge? A lot more than you might think.
The Wikimedia Foundation works globally to support laws and policies that protect and promote access to knowledge online and human rights.
Learn more with our Global Advocacy team ➡️ mailchi.mp/wikimedia/gl...
The Wikimedia Foundation works globally to support laws and policies that protect and promote access to knowledge online and human rights.
Learn more with our Global Advocacy team ➡️ mailchi.mp/wikimedia/gl...
Congratulations Buginese Wikipedia!
The Basa Ugi edition celebrates 20 years of preserving and promoting the Buginese language online. Volunteers created a digital home for four million speakers.
Discover the Buginese language community ➡️ w.wiki/FUnM
The Basa Ugi edition celebrates 20 years of preserving and promoting the Buginese language online. Volunteers created a digital home for four million speakers.
Discover the Buginese language community ➡️ w.wiki/FUnM
October 24, 2025 at 1:13 PM
Congratulations Buginese Wikipedia!
The Basa Ugi edition celebrates 20 years of preserving and promoting the Buginese language online. Volunteers created a digital home for four million speakers.
Discover the Buginese language community ➡️ w.wiki/FUnM
The Basa Ugi edition celebrates 20 years of preserving and promoting the Buginese language online. Volunteers created a digital home for four million speakers.
Discover the Buginese language community ➡️ w.wiki/FUnM
The Advancing Physics Wikipedia Education Program turns physicists, students, and professionals into Wiki Scientists.
They swap chalkboards for edit windows, learning research skills, proper citations, and community norms that bring science to life online. 🧵⬇️ (1/3)
They swap chalkboards for edit windows, learning research skills, proper citations, and community norms that bring science to life online. 🧵⬇️ (1/3)
October 23, 2025 at 2:20 PM
The Advancing Physics Wikipedia Education Program turns physicists, students, and professionals into Wiki Scientists.
They swap chalkboards for edit windows, learning research skills, proper citations, and community norms that bring science to life online. 🧵⬇️ (1/3)
They swap chalkboards for edit windows, learning research skills, proper citations, and community norms that bring science to life online. 🧵⬇️ (1/3)
Bolivian legends are coming to life on Wikipedia! Wikimedistas de Bolivia and University for Development and Innovation students illustrated myths of Jichi and Chancho Verde, turning oral stories into visual articles that share culture, lessons, and cosmovision with the world. Explore ➡️ w.wiki/FXJ6
October 22, 2025 at 1:19 PM
Bolivian legends are coming to life on Wikipedia! Wikimedistas de Bolivia and University for Development and Innovation students illustrated myths of Jichi and Chancho Verde, turning oral stories into visual articles that share culture, lessons, and cosmovision with the world. Explore ➡️ w.wiki/FXJ6