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The Wikimedia Foundation today announced the appointment of Bernadette Meehan as Chief Executive Officer.

Wikipedia2025 year in review Wikipedia is the largest knowledge resource ever assembled in the history of the world, and it’s freely available to everyone everywhere. It’s there when you want to learn about our changing world, win a bet among friends, or answer a curious child’s question. Here’s a review of 2025 through the lens….

New Wikipedia data shows the events, people, movies, and more that captured global attention in 2025.

Here is a fun fact for your next party: Of the top-ten most-visited websites in the world, Wikipedia is the only one to be run by a nonprofit: the Wikimedia Foundation.  In this role, we are responsible for hosting and protecting Wikipedia and other Wikimedia projects. We do not have an editorial role on Wikipedia.….

For over almost 25 years, Wikipedia has grown to become the backbone of knowledge on the internet. What started as a wildly ambitious and probably impossible dream is now an essential knowledge resource for humanity. It includes over 65 million articles in over 300 languages, all funded by readers like you. Wikipedia is filled with….

Wikipedia is turning 25 and we’re celebrating together! Your guide to the celebration For 25 years, people from every corner of the world have built, shared, and shaped what has become the backbone of knowledge on the internet.  Thank you for being here to celebrate this incredible milestone with us.  We’ve created this  page to….

On Wikipedia, disagreement is never a sign of failure. It’s evidence that people care deeply about getting the facts right. 

Founded on 15 January 2001, this coming year marks Wikipedia’s 25th birthday. With over 65 million articles across 300+ languages, Wikipedia informs everything from day-to-day life and AI chatbots to journalism and trivia wins.  Join us in celebrating what has become the backbone of knowledge on the internet. Meet some of the humans making it….

AI relies on human-documented knowledge resources like Wikipedia.

Here are 7 reasons to donate to the Foundation that also clarify who we are, what we do, and why your donations matter.