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…

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: Hranice, Hranice District, Moravia, as of 1858. Right: The same location today.

On this day

Selected establishments and disestablishments on September 30:

1938: The Munich Agreement is signed between Nazi Germany, the United Kingdom, France, and Italy, leading to the cession of the Sudetenland by the Czechoslovak Republic.
1958: In the University of British Columbia, the A, B, and C blocks of Buchanan Building are inaugurated.
1989: The Senegambian Confederation which combined Senegal and Gambia is disestablished.
2000: Masbate in the Philippines becomes a city.
2008: The Pavlodar Friendship House opens in Kazakhstan.
2010: LG completes their new headquarters, Gwanghwamun Building in Seoul, South Korea.

Statistics

7.5M
dated elements
2,411k
buildings
629k
railroad miles
50
average age
1992
average year
2,246
contributors

Source: QLever, Planet
September 22, 2026

Historical statistics

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.
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.

Older news

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