What is the state of the map in 2022 and how did we get here? Everyone who has used and contributed to OSM knows that the map is constantly evolving: new objects are added, existing data is adjusted and eventually gets deleted. In this workshop we want to explain and show hands-on how you can analyze mapping activity over time through the ohsome framework and how you can interpret the changes, e.g. in respect to data quality, and by combining the ohsome approach with other tools.