OpenStreetMap 21st Anniversary Birthday party

A birthday cake for a 10th anniversary event in the United Kingdom

In 2025, the OpenStreetMap 21st Anniversary Birthday party will be celebrated on or around 9th August 2025 in cities all around the world!

Birthday events

Order by date and then by longitude in time order (from East to West). Use {{flagicon|country}}.

8 August

9 August

10 August

11 August

Related write-ups

Event Photos

This year we're celebrating the !
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