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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!


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.

Then and now

From OpenHistoricalMap's community projects:

Left: The Intramuros quarter of Manila as of 1900. Right: The same location today.

On this day

Selected establishments and disestablishments on September 30:

Template:OpenHistoricalMap/On this day/09/30


  • 972k
    dated elements
  • 326k
  • 176k
    railroad miles
  • 130
    average age
  • 1935
    average year
  • 1,125

(Source: Overpass API, Overpass API, Planet as of September 5, 2023)

  • edit


September 4, 2023
The OpenHistoricalMap API now responds to requests much more quickly.
September 1, 2023
Recordings of State of the Map U.S. presentations are now available in the project bibliography and on the OpenStreetMap U.S. website.
August 31, 2023
Project-wide discussions can now take place on the new OpenHistoricalMap Forum. No extra setup required; just sign in with your OpenHistoricalMap account.
July 27, 2023
Services are now updating normally following recent downtime.
July 21, 2023
Web developers can now embed an interactive map powered by MapLibre inside an <iframe>. The map is designed for calling attention to a location at a specific point in time, similar to the {{Vector map}} template on this wiki.


November 3, 2023
University of Colorado GIS Day in Denver, Boulder, and Colorado Springs, Colorado

Policies and guidelines