OSM Tag History
|OSM Tag History|
|Programming languages:||HTML and C++|
History of OSM tag usage
OSM Tag History lets you compare multiple tags, and use it to observe a shift in usage over time from one tag to another.
See Category:OSMTagHistory for images used here on the wiki
Martin Raifer's diary entry gives more details
Math1985' diary entry gives more example tag comparisons (and their histories)
It has an API! See OSM Tag History API docs
Developed by Martin Raifer.
Source code and bug tracking on github: https://github.com/tyrasd/taghistory
For the example above (Swimming_pool_amenity_vs_leisure_Taghistory.png) the corresponding permalink looks like:
The latest update of the data available through the OSM Tag History API was performed in May 2023. Data for more recent dates are filled in from Taginfo in the main web page at . While this provides daily updated statistics for all
key=* values, it does however only work for the "more popular"
key=value tags (currently, those with at last 1000 uses in OSM). For all other tags, a rough projection from the latest known historic value to the current number of occurrences in the OSM database is provided in form of a dotted line.