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Wikimedia Foundation
@Wikimedia
We're the nonprofit that hosts , working to create a world where every human can freely share in the sum of all knowledge. Join the movement.
Globalwikimediafoundation.orgJoined October 2009

Wikimedia Foundation’s Tweets

📷 1️⃣ First place, by Roman.ubl, CC BY-SA 4.0. 2️⃣ Second place, by Stephan Sprinz, CC BY-SA 4.0. 3️⃣ Third place, by Eyimzan, CC BY-SA 4.0. 4️⃣ Fourth place, by Roman.ubl, CC BY-SA 4.0.
Blackbirds are sitting on the stone and looking away at the Nordufer Wittow Rügen (nature reserve in Germany) with a beautiful gray background.
A charming yellow-blue view of wind turbines on the German north-sea coast.
Two cute ducks confidently walking on the road near human civilization.
A beautiful white swan near the Rhine surrounded by rocks.
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The Wikimedia Hackathon 2023 will happen between 19 and 21 May! The event is a space for the technical community to come together and work on technical projects, learn from each other, and make new friends. (1/3)
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🎉🎂 Avui la Viquipèdia en català fa 22 anys! Aviat arribarem a la fita col·lectiva dels 750.000 articles. 📢 Ara cal, més que mai, que navegueu en català i prioritzeu els clics en aquesta llengua perquè no quedi amagada als cercadors. Seguiu-nos i llegiu-nos, per molts anys!
Cartell commemoratiu dels 22 anys de la Viquipèdia en llengua catalana.

(Wikimedia Commons, domini públic)
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Wikimedia projects rely on open, flexible copyright policies to ensure that knowledge can be accessed freely. We will apply for official observer status again at the coming WIPO General Assembly meeting in July. Learn more about our efforts. ⬇️ (4/4)
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“The Wikimedia Foundation, and the global free knowledge movement that it supports, offer crucial insight into the laws and policies that regulate accessing, remixing, and sharing information online,” said Stephen LaPorte, General Counsel at the Wikimedia Foundation. (3/4)
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China wrongly claimed that the organization spreads disinformation through Wikipedia and other Wikimedia projects. This accusation is inaccurate and fundamentally misrepresents the Wikimedia model, which prioritizes neutrality and requires citations to reliable sources. (2/4)
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"The % of sentences missing a citation has dropped by 20% in the last decade, with more than half of verifiable statements now accompanying references. The % of non-authoritative sources has remained below 1% over the years as a result of community efforts."
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"We operationalize 'reference quality' by defining reference need (RN) as the % of sentences missing a citation, and reference risk (RR) as the proportion of non-authoritative references." Longitudinal Assessment of Reference Quality on Wikipedia arxiv.org/abs/2303.05227
The evolution of reference quality in Wikipedia. . Error bars represent the standard error. (Left) Reference need (RN) scores gradually decreased over the last decade, indicating an improved reference coverage of articles. The drop is nearly 20 percent point over the decade. (Right) Reference risk (RR) scores remain under 1% and show a decreasing trend in recent years, suggesting a reduction in the use of risky references after the introduction of the perennial sources list in 2018.
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If you cannot join us for the in-person Hackathon in Greece this year, you can organize satellite events with help from your local community around the duration of the Hackathon. The deadline to apply for grant funding is March 20th ⬇️ #wmhack
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“This works as an invitation to other Indigenous groups to strengthen their languages in this new era of history.” Learn how the Wayúu people are recording their knowledge through platforms like Wikipeetia and Wikipütchimaajatü süka wayuunaiki.
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We are happy to jump on the bandwagon to welcome new contributors to our broader community through Google Summer of Code 2023 and mentor them on coding projects in 's technology ecosystem ☀️ Check out our project ideas list: mediawiki.org/wiki/Google_Su.
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☀ The 2023 Google Summer of Code mentor organizations have been selected! This year, we are excited to announce that 172 open source projects have been selected, including 18 new organizations. Full details → goo.gle/3Ks732f
Google Summer of Code Mentor Organizations Announced
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