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 Venetian star fort of Palmanova in 1600. Right: The same location today.

On this day

Selected establishments and disestablishments on July 10:

1785
The Alte Kirche Wupperfeld is consecrated in Wuppertal.
1890
The State of Wyoming is created from Wyoming Territory.
1949
The Georgi Dimitrov Mausoleum is completed in Sofia, Bulgaria.
1969
Dongdaemun Shopping Complex opens in Seoul.
1973
The Bahamas gains independence from the United Kingdom, becoming a Commonwealth realm.
2004
Santa Rosa becomes a city in Laguna, Philippines.
2019
McLinden's Shoes closes after 72 years in three locations in Southgate (originally Wyandotte), Michigan.


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