OpenHistoricalMap

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OpenHistoricalMap goes beyond the present, mapping places throughout the world… throughout the ages.
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.

Then and now

From OpenHistoricalMap's community projects:

Left: City limits of San Jose, California, as of March 1968. Right: The same location today.

On this day

Selected establishments and disestablishments on June 22:

1722
Stallupönen (now Nesterov) is granted town privileges by Frederick William I of Prussia.
1834
Prussia's Rhine Province is formed from the Lower Rhine Province and Province of Jülich-Cleves-Berg.
1915
The BMT Nassau Street Line's southbound Manhattan Bridge tracks open for service in New York City.
1927
The Hotel Almo opens in Tampa, Florida.
1931
The Windmill Theatre opens in London.
1932
In Michigan, the Village of Huntington Woods incorporates as a city, withdrawing from Royal Oak Township.
1963
Dapitan, Zamboanga del Norte, becomes a city.
Statistics
  • 1.2M
    dated elements
  • 380k
    buildings
  • 227k
    railroad miles
  • 126
    average age
  • 1931
    average year
  • 1,421
    contributors
News
June 18, 2024
The official stylesheets have moved to a new location once again. If you have a website or application that embeds an OpenHistoricalMap-based style, please update to the new URLs to avoid showing broken map tiles.
June 12, 2024
A version of Overpass Ultra has been preconfigured for OpenHistoricalMap at ohm.overpass-ultra.us.
June 11, 2024
Presentation slides from State of the Map U.S. are now available in the project bibliography. Recorded videos will be available soon.
June 4, 2024
The Historic stylesheet has moved to a new location. If you have a website or application that embeds an OpenHistoricalMap-based style, please update to the new URL.
May 2, 2024
The site will be in read-only mode for a few hours on Thursday to upgrade the database. You will not be able to edit the map during this time.


Policies and guidelines