OpenHistoricalMap
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No community is too small, no story too obscure to add to this map.
Everyone has something to contribute, including you!
Contribute
To contribute to OpenHistoricalMap, go to the main map, zoom in to a place of interest, and click the “Edit” button. If you are familiar with editing OpenStreetMap, the OpenHistoricalMap editing experience is very similar. See the tagging guidelines for information on a few changes we’ve made to accommodate the time dimension.
We also maintain several software projects to facilitate map contributions and data reuse. Please report any issues and send us your ideas on GitHub or our forum.
Then and now
From OpenHistoricalMap's community projects:
Left: The public transport system in Milan in 1906. Right: The same location today.
On this day
Selected establishments and disestablishments on December 29:
- 1927
- Terrace, British Columbia is incorporated as a village municipality.
- 1937
- The Irish Free State is renamed Ireland after the Irish constitution comes into force.
- 1954
- Netherlands Antilles becomes a constituent country in the Kingdom of the Netherlands.
- 2002
- The first segment of Guangzhou Metro's Line 2 from Sanyuanli to Xiaogang is opened.
- 2020
- Skyway Stage 3 opens to traffic in Metro Manila, Philippines.
Statistics
- 2.3M
dated elements - 564k
buildings - 404k
railroad miles - 120
average age - 1941
average year - 1,900
contributors
- Source: Overpass API, Overpass API, Planet
- December 1, 2025
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