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 city of Königsberg as of 1920. Right: The same location today.

On this day

Selected establishments and disestablishments on November 6:

1657
Under the Treaty of Bromberg, Lauenburg is transferred from the Polish–Lithuanian Commonwealth to Brandenburg–Prussia.
1869
The Holborn Viaduct is dedicated by Queen Victoria in London.
1871
The Holly, Wayne & Monroe Railway opens in Michigan.
1955
Yad Rambam is founded in Israel.
1962
A section of the Yeongdong Line opens from Okkye to Gyeongpodae in South Korea.
1974
A section of U.S. Highway 177 east of Tonkawa, Oklahoma, is rerouted onto a new bypass.
2019
Steppe Grass Kumarshyk is dedicated in Guryev (now Atyrau), Kazakhstan.


Statistics
  • 7.8M
    dated elements
  • 2,591k
    buildings
  • 642k
    railroad miles
  • 51
    average age
  • 1991
    average year
  • 2,300
    contributors
News
September 22, 2026
Database statistics are now calculated using QLever.
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.


Events
November 10, 2026
Sand Lake Historical Society meeting in Sand Lake, New York
November 16, 2026 – November 22, 2026
Conear Ayacucho at the National University of San Cristóbal de Huamanga in Ayacucho, Peru. OpenHistoricalMap workshop on November 19, 10:00–12:00
November 25, 2026
Rhine-Neckar OSM Meeting, Mannheim, Germany


Policies and guidelines