The Sound of All Human Knowledge contest is happening now. Play your part in the search for Wikimedia’s new sound logo.
«تحدث الآن مسابقة صوت المعرفة الإنسانيَّة كلها. العب دورك في البحث عن الشعار الصوتي الجديد لويكيميديا».
Le concours “Son de toutes les connaissances humaines” a lieu maintenant. Jouez votre partition à la recherche du nouveau logo sonore de Wikimédia.
Der Wettbewerb zum Klang allen menschlichen Wissens hat begonnen. Lass bei der Suche nach dem neuen Soundlogo für Wikimedia deine Stimme hören!
Сейчас проходит конкурс «Звук всех знаний, накопленных человечеством». Сыграйте свою роль в поиске нового звукового логотипа Викимедиа.
全人类知识之声竞赛现在正在举行。 请参与维基媒体的新声音标志的搜索行动。
El concurso “El sonido de todo el conocimiento humano” ya está en marcha. Participa en la creación del nuevo logo sonoro de Wikimedia
The Sound of All Human Knowledge contest is happening now. Play your part in the search for Wikimedia’s new sound logo.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.
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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.
Research
We conduct our own research and partner with researchers worldwide to address change in society and technology.
More about research![](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2018/06/Wikimedia_Conference_2017_–_228-e1533253661801.jpg?w=600&h=338&crop=1)
Technology
From site reliability to machine learning, our open-source technology makes Wikipedia faster, more reliable, and more accessible worldwide.
More about technology![](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2018/07/Screen-Shot-2018-07-30-at-1.24.58-PM-e1533254033550.png?w=600&h=338&crop=1)
Advocacy
We conduct our own research and partner with researchers worldwide to address change in society and technology.
More about advocacy![](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2018/06/SOPA_protest_in_Midtown_NYC-e1533254825755.jpg?w=600&h=338&crop=1)
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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.
![Wikipedia puzzle globe](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation-org-preprod.go-vip.net/wp-content/uploads/2018/08/Wikipedia-logo-e1534036958292.png?w=1024)
Wikipedia
Free encyclopedia written in 300 languages by volunteers around the world.
![Wikimedia Commons logo](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation-org-preprod.go-vip.net/wp-content/uploads/2018/05/446px-commons-logo-svg.png?w=446)
Wikimedia Commons
The world’s largest free-to-use-library of illustrations, photos, drawings, videos and music.
News — Actualités
See what we have been up to
![Wikimedia Sound Logo](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2022/09/Sound-Logo-press-release-image-05.png?w=800&h=600&crop=1)
The search for The Sound of All Human Knowledge begins: Global contest aims to identify the first ever sound logo for Wikipedia and Wikimedia projects
This post is also available in: اَلْعَرَبِيَّةُ, 中文, Bahasa Indonesia, Deutsch, Español, Français, हिंदी, Русский, Português, & 한국어. 13 September 2022 — Today, the Wikimedia Foundation, the nonprofit that supports Wikipedia and Wikimedia projects, is launching The Sound of All Human Knowledge, a global contest to find a sound logo for Wikipedia and Wikimedia projects.….
![Panorama of United States Supreme Court Building at Dusk](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2022/08/Panorama_of_United_States_Supreme_Court_Building_at_Dusk.jpg?w=800&h=600&crop=1)
Wikimedia Foundation, ACLU, and Knight Institute Urge U.S. Supreme Court to Hear Challenge to NSA’s Mass Surveillance
The Wikimedia Foundation, the nonprofit that operates Wikipedia, petitioned the U.S. Supreme Court today to review a challenge to the National Security Agency’s (NSA) mass surveillance of Americans’ private emails, internet messages, and web communications with people overseas, also known as its “Upstream” surveillance program. In its petition, Wikimedia asks the Court to reject the….
Profiles — 簡介
Wikimedians are heroes of free knowledge.
![Emily Temple-Wood at Wikimania 2014](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2017/03/emily_temple-wood_at_wikimania_2014-1-e1530573061218.jpg?w=400&h=300&crop=1)
Emily Temple-Wood
Editor since 2007, Wikimedia community![Photo of Pranayraj Vangari](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2018/06/pranayraj-vangari-e1531344242107.jpg?w=400&h=300&crop=1)
Pranayraj Vangari
Editor since 2013, Wikimedia community![Vitor Mazuco](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2018/06/Vitor_Mazuco-15-e1531350595274.jpg?w=400&h=300&crop=1)
Vitor Mazuco
Editor since 2009, Wikimedia communityThroughout history, knowledge has been controlled by a powerful few. Wikipedia needs knowledge from all languages and cultures. The internet has become the default for accessing information—women, people of color, and the global south remain underrepresented. We invite you to help correct history.
Help us unlock the world’s knowledge.
As a nonprofit, Wikipedia and our related free knowledge projects are powered primarily through donations.
Donate now![](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2018/06/ArtAndFeminism_2017_Livrustkammaren_06-e1533254907593.jpg?w=1024)
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![Wikimedia Sound Logo](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2022/09/Sound-Logo-press-release-image-05.png?w=63)
![Emily Temple-Wood at Wikimania 2014](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2017/03/emily_temple-wood_at_wikimania_2014-1-e1530573061218.jpg?w=63)
![Photo of Pranayraj Vangari](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2018/06/pranayraj-vangari-e1531344242107.jpg?w=63)
![Vitor Mazuco](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2018/06/Vitor_Mazuco-15-e1531350595274.jpg?w=63)
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![Wikimedia Conference 2017](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2018/06/Wikimedia_Conference_2017_–_228-e1533253661801.jpg?w=63)
![Man in front of computer servers](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2018/07/Screen-Shot-2018-07-30-at-1.24.58-PM-e1533254033550.png?w=63)
![Protesters gather on 48th Street in Manhattan to speak against the SOPA and PIPA bills](https://web.archive.org./web/20221003113119im_/https://wikimediafoundation.org/wp-content/uploads/2018/06/SOPA_protest_in_Midtown_NYC-e1533254825755.jpg?w=47)