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Celebrate 20 years of Wikipedia and the humans who make it possible →

Отметьте 20-летие Википедии и людей, которые сделали её возможной →

Célébrez 20 ans de Wikipédia et les personnes qui ont rendu cela possible →

احتفل بمرور 20 عامًا على ويكيبيديا وعلى الأشخاص الذين جعلوا وجودها ممكنًا ←

Celebra los 20 años de Wikipedia y las personas que lo hacen posible →

Responding to COVID-19

In this time of uncertainty, our enduring commitment is to provide reliable and neutral information for the world.

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The nonprofit Wikimedia Foundation provides the essential infrastructure for free knowledge. We host Wikipedia, the free online encyclopedia, created, edited, and verified by volunteers around the world, as well as many other vital community projects. All of which is made possible thanks to donations from individuals like you. We welcome anyone who shares our vision to join us in collecting and sharing knowledge that fully represents human diversity.

Protect and sustain Wikipedia Donate now English· العربية (العالم) · 中文 (繁体中文) · Français (France) · Русский (Россия) · Español (España) · Deutsch (Deutschland) 1 Wikimedia projects belong to everyone

You made it. It is yours to use. For free. That means you can use it, adapt it, or share what you find on Wikimedia sites. Just do not write your own bio , or copy/paste it into your homework.

2 We respect your data and privacy

We do not sell your email address or any of your personal information to third parties. More information about our privacy practices are available at the Wikimedia Foundation privacy policy , donor privacy policy , and  data retention guidelines .

3 People like you keep Wikipedia accurate

Readers verify the facts . Articles are collaboratively created and edited by a community of volunteers using reliable sources , so no single person or company owns a Wikipedia article. The Wikimedia Foundation does not write or edit, but you and everyone you know can help.

4 Not all wikis are Wikimedia

The word “ wiki ” refers to a website built using collaborative editing software. Projects with no past or existing affiliation with Wikipedia or the Wikimedia Foundation, such as Wikileaks and wikiHow, also use the term. Although these sites also use "wiki" in their name, they have nothing to do with Wikimedia.

200,000+editors contribute to Wikimedia projects every month Tweet this 68+ millionmedia files on Wikimedia Commons Tweet this 1+ billionunique devices access Wikimedia projects every month Tweet this


We conduct our own research and partner with researchers worldwide to address change in society and technology.


From site reliability to machine learning, our open-source technology makes Wikipedia faster, more reliable, and more accessible worldwide.


We fight to protect everyone’s right to access free and open knowledge.

Projects — 項目Collaborative projects are the core of the Wikimedia movement.

Our volunteers build tools, share photos, write articles, and are working to connect all the knowledge that exists.

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Free encyclopedia written in 300 languages by volunteers around the world.

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NEWS — NACHRICHTEN See what we have been up to
19 April 2021

Wikipedia readers in Latin America invited to support 20 years of free knowledge through new fundraising campaign

The Wikimedia Foundation today started a fundraising campaign on Wikipedia in several Latin American countries, starting in Brazil and continuing in Argentina, Chile, Colombia, Mexico, Peru, and Uruguay. Until the end of May, banners will be appearing on Wikipedia in these countries, asking readers to consider contributing with a donation. You may see these messages….

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8 March 2021

Project Rewrite: Tell the missing stories of women on Wikipedia and beyond

Think of a historical event, one you learned about in school. Maybe an expedition, a treaty, or a speech. How about a years-long atrocity, or a record-breaking achievement? When you picture this event, who are the central characters? Now, ask yourself if you know the women’s side of the story. For as long as written….

Read more Help us unlock the world’s knowledge.

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