OpenHistoricalMap

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OpenHistoricalMap


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!



Use

Go to the main map and navigate to a place and time of interest using the time slider. Share the map to spread the word about our project. Explore the many ways you can reuse OpenHistoricalMap in your own storytelling and software projects.

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. Please report any issues and send us your ideas on GitHub or our forum.

Then and now

From OpenHistoricalMap's community projects:

Left: The Hamburg U-Bahn at its inauguration in February 1912. Right: The same location today.

On this day

Selected establishments and disestablishments on September 21:

1792
The abolition of monarchy leads to the founding of the French Republic during the French Revolution.
1964
Malta gains independence from the British Empire.
1966
The United States completes withdrawal of troops from the Dominican Republic.
1979
In British Columbia, the Island Highway is completed from Campbell River to Port Hardy.
2005
The Brewer Building, an extension of St. Mary's Church in Putney, England, is officially opened.
2013
Manila International Peace Center is established.


Statistics
  • 3.6M
    dated elements
  • 758k
    buildings
  • 612k
    railroad miles
  • 97
    average age
  • 1960
    average year
  • 2,219
    contributors
News
July 23, 2026
You can make advanced edits right inside your Web browser using Level0.
July 10, 2026
You can filter search results by the city, region, and country.
April 16, 2026
The official vector tilesets are now available as TileJSON.
April 15, 2026
Our tagging pages more consistently link to other OHM tagging pages instead of often conflicting OSM tagging pages.
April 14, 2026
The tile server has migrated from Tegola to Martin for improved reliability and performance.


Events
October 27, 2026 – October 29, 2026
State of the Map LatAm in Mexico City
November 2, 2026 – November 4, 2026
FOSS4G North America in Sacramento, California
November 10, 2026
Sand Lake Historical Society meeting in Sand Lake, New York


Policies and guidelines