ThisWikipedia 25 Meta-Wiki page is an initial framework the global Wikimedia movement can use to coordinate around the 25th anniversary ofWikipedia. The celebration will last all year in 2026. We are celebrating 25 years of knowledge, humanity, and collaboration at its best. Together and piece by piece we build the sum of all human knowledge.
See below for some general things to know about the overall approach for the 25th birthday celebration:
Based on our experience celebrating Wikipedia's 20th birthday five years ago, we know this celebration is a time when we will have the world's attention. Our goal is to leverage this moment to reach wide, public audiences with our key messages and calls to action. The 25th birthday celebration is a feel-good moment and a moment of impact.
While the technical birthdate is 15 Jan. 2026, the celebration will have a much longer lifespan. We will begin building excitement about the birthday in November 2025. The main communications campaign will launch in January 2026. We will celebrate in-person as a movement at Wikimania Paris. Movement and partner activities and events will happen throughout the 2026 calendar year.
The 25th birthday celebration isnot about English Wikipedia. It is about the birth of Wikipedia as a concept — a creation that has evolved over time to be in over 300 languages.
We hope that people around the world, in as many countries as possible, celebrate Wikipedia's 25th birthday. To support this goal, the 25th birthday celebration will include a global campaign centered on the existing“Knowledge is Human" theme.
Help with translating. Help us get the word out about Wikipedia 25 in as many languages as possible by joining our translation efforts!
Use Wikipedia 25 materials. We’re inviting you to make your own illustrations, apparel, presentations, and branded elements with the templates and guidelines here.
We want towork with the community to create easter eggs to invite the world to celebrate 25 years of Wikipedia. These easter eggs will be on the Wikipedia portal page, the Wikipedia app, and potentially any interested Wikipedias.
