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 African continent in 1925. Right: The same location today.

On this day

Selected establishments and disestablishments on February 28:

1661: Under the Treaty of Vincennes, the Duke of Lorraine cedes to the King of France the Duchy of Bar and other territories.
1861: Colorado Territory is established from parts of New Mexico, Utah, Kansas, and Nebraska Territories.
1875: Dos de Mayo National Hospital opens in Lima, Peru.
1903: The Fernán González Artillery Quarters are established on a former monastery orchard.
1906: Lagos Colony and Southern Nigeria are amalgamated into the Colony and Protectorate of Southern Nigeria.
1950: Gimzo is founded as a moshav near the former Palestinian village of Jimzu.
1997: State Theatre closes in Hong Kong after 38 years in business.
2019: DePaul Health Center closes in Morgan Hill, California, after 19 years in operation.

Statistics

2.4M
dated elements
588k
buildings
428k
railroad miles
127
average age
1938
average year
1,970
contributors

Source: Overpass API, Overpass API, Planet
February 3, 2026

Historical statistics

News

February 20, 2026: JOSM’s Changeset Viewer plugin adds support for OHMCha.
February 13, 2026: Help us make our first donation drive a success!
January 31, 2026: better-osm-org adds experimental support for enhancing OpenHistoricalMap’s website interface.
January 31, 2026: OpenStreetMap Americana prototypes a port to OpenHistoricalMap.