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: The Choongwan district of the City of Victoria in Colonial Hong Kong as of 1800. Right: The same location today.

On this day

Selected establishments and disestablishments on August 13:

762
Rheinbach is first attested as a settlement in the Holy Roman Empire.
1607
The Popham Colony is founded by British colonists in present-day Maine.
1859
Colorado City is incorporated as a town in Kansas Territory, in what is now Colorado Springs, Colorado.
1898
Wait-a-while station closes along the Narrandera Tocumwal line in New South Wales.
1919
Pleasant Ridge is incorporated as a village in Michigan.
1951
The kibbutz of Gonen is founded in Israel.
1968
The final section of the Meon Valley Railway closes in Hampshire, England, after 65 years in service.
1988
The Palace of Auburn Hills opens in Michigan.


Statistics
  • 2M
    dated elements
  • 491k
    buildings
  • 350k
    railroad miles
  • 126
    average age
  • 1937
    average year
  • 1,765
    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.


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