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!

Go to the map • Learn more…

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 January 12:

1964: The Sultanate of Zanzibar is overthrown during the Zanzibar Revolution.

Statistics

1.6M
dated elements
424k
buildings
278k
railroad miles
135
average age
1932
average year
1,584
contributors

Source: Overpass API, Overpass API, Planet
January 1, 2025

Historical statistics

News

December 3, 2024: Follow our new Bluesky account (bridged from Mastodon) for occasional updates.
July 30, 2024: Join us in celebrating 15 years since OpenHistoricalMap first appeared on the Internet.