Join us in celebrating Wikipedia’s 25th birthday, recognizing 25 years of collaboration and free knowledge.
15 January 2026 — Wikipedia, the world’s largest online information resource, turns 25 today, marking a quarter century of making trustworthy, human-powered knowledge accessible worldwide. Through a Wikipedia 25 campaign launched today, the Wikimedia Foundation — the nonprofit that operates Wikipedia — invites everyone to discover Wikipedia’s journey over the last 25 years, celebrate the volunteers who make the site possible, and be part of the platform’s future.
This milestone highlights its role in empowering millions globally by making information accessible. We commit to expanding knowledge, amplifying diverse voices, and ensuring local histories are shared, building a future of inclusive and free knowledge.
Together, we celebrate Wikipedia’s ongoing mission to build a future where knowledge remains free, inclusive, and truly global. Mabuhay!
More ways to celebrate Wikipedia: https://wikimediafoundation.org/news/2026/01/15/wikipedia-celebrates-25years
Spreading the Spirit of Free Knowledge 