Museums safeguard humanity’s collective memory. They preserve artefacts, traditions, histories, and stories that connect people with their cultural roots. Yet many museums across Asia remain underrepresented online, particularly in languages spoken by local communities. For millions of Bangla speakers, information about these institutions is often scattered, incomplete, or entirely unavailable. This gap is precisely what the International Museum Day Edit-a-thon seeks to address. From 18 to 24 May 2026 , volunteers from across the Bangla Wikipedia community came together to expand museum-related content on Bangla Wikipedia. Organised by Wikimedia Bangladesh with support from the Chattogram Wikimedia Community , the initiative focused on improving access to knowledge about museums and cultural institutions throughout Asia. More than an editing campaign, the event represented a collective effort to make cultural knowledge more visible in Bangla.…