The group photo (CC BY 4.0, by Bahnmoeller) On 17 January 2026, Wikimedians and friends of free knowledge gathered in Hamburg to celebrate the 25th anniversary of Wikipedia. Organized by the Iranian Wikimedians User Group, the meetup took place at the Museum für Kunst und Gewerbe Hamburg and brought together community members for an afternoon dedicated to Wikipedia and the people who build it. The event created an opportunity for participants to meet each other in person, exchange ideas, and talk about their experiences contributing to Wikimedia projects. Editors, community organizers, and supporters of open knowledge shared stories about their work on Wikipedia and discussed the role that volunteer communities play in sustaining the platform. During the gathering, participants watched the official Wikipedia anniversary message and reflected on how the project has evolved over the past twenty-five years.…