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: The Choongwan district of the City of Victoria in Colonial Hong Kong as of 1800. Right: The same location today.

On this day

Selected establishments and disestablishments on October 20:

1818: Great Britain and the United States establish an international boundary at 49 degrees latitude north, from Lake of the Woods west to the Rocky Mountains, transferring the northern part of Missouri Territory to Great Britain.
1860: Under the October Diploma, the Kingdom of Croatia returns Međimurje and Fiume to Zala, Hungary, and returns Kutina to Slavonia.
1889: Tobago becomes a ward of the Colony of Trinidad and Tobago.
1901: Collingwood station closes in Melbourne.
1914: A narrow gauge railroad opens near Asmara in Eritrea.
1949: Groesbeck Highway in Mount Clemens, Michigan is extended north, bypassing the city to the west.
2003: Hartsfield Atlanta International Airport is renamed Hartsfield–Jackson Atlanta International Airport in honor of former mayor Maynard Jackson.

Statistics

7.6M
dated elements
2,497k
buildings
632k
railroad miles
51
average age
1991
average year
2,257
contributors

Source: QLever, Planet
October 2, 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.

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
November 16, 2026 – November 22, 2026: Conear Ayacucho at the National University of San Cristóbal de Huamanga in Ayacucho, Peru