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.

Then and now

From OpenHistoricalMap's community projects:

Left: Black Rock City during Burning Man 2009. Right: The same location today.

On this day

Selected establishments and disestablishments on March 19:

Template:OpenHistoricalMap/On this day/03/19

Statistics
  • 1.1M
    dated elements
  • 357k
    buildings
  • 209k
    railroad miles
  • 128
    average age
  • 1930
    average year
  • 1,360
    contributors
News
February 13, 2024
An experimental new Railway style is now available in the Layer sidebar.
January 17, 2024
The University of Freiburg has set up QLever for querying OpenHistoricalMap data in conjunction with other datasets using SPARQL.
October 26, 2023
We briefly hit 1 million elements with a start_date=* or end_date=* tag for the first time. The millionth dated element is Hoctor Close in Melbourne.
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.


Policies and guidelines