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 or our forum.

Then and now

From OpenHistoricalMap's community projects:

Left: Lille under Dutch occupation in 1710, during the War of the Spanish Succession. Right: The same location today.

On this day

Selected establishments and disestablishments on July 5:

1902
A statue of the Duke of Connaught by Sir Joseph Edgar Boehm and George E. Wade is dedicated at Statue Square in Central, Hong Kong.
1906
Tel Aviv is established as Ahuzat Bayit on the outskirts of Jaffa.
1922
Ninh Thuận province (Phan Rang province) is reestablished in French Indochina.
1929
The Walnut Gardens Speedway begins operation south-southwest of Indianapolis, Indiana.
1990
Kosovo is renamed back to Kosovo and Metohija.
2012
Mörtsal station opens along the Sollefteå–Härnösand line in Sweden.


Statistics
  • 1.9M
    dated elements
  • 478k
    buildings
  • 330k
    railroad miles
  • 127
    average age
  • 1937
    average year
  • 1,736
    contributors
News
April 27, 2025
OSM Building Viewer adds support for rendering an OHM building in 3D.
April 17, 2025
OpenRailwayMap has added a time slider and replaced OpenStreetMap demolished railways with OpenHistoricalMap data.
April 15, 2025
Follow our new Bluesky account.
April 10, 2025
The Nominatim API has moved to a new subdomain for consistency with OpenStreetMap.
February 12, 2025
QLever examples have been updated to reflect an improved data model for members of relations and ways and more metadata.


Events
October 3, 2025 – October 5, 2025
State of the Map in Manila
September 4, 2025 – September 6, 2025
State of the Map Latam in Medellín


Policies and guidelines