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: Rennes as of 1500. Right: The same location today.

On this day

Selected establishments and disestablishments on October 26:

1838: Honduras declares its independence from the Federal Republic of Central America.
1939: Nazi Germany annexes Zichenau (Ciechanów), Suwalki (Suwałki), and Memelland (Klaipėda) and establishes the General Government in occupied Poland.
1954: The New York State Thruway opens between Newburgh and Westmoreland.
1955: South Vietnam is proclaimed a republic.
1957: A statue of Vladimir Lenin is unveiled in Mykolaiv, Ukrainian SSR.
1969: At 2 o’clock in the morning, the Central Time Zone is extended to include all of Kansas except for Sherman, Wallace, Greeley, Hamilton, and Kearny counties, which remain in the Mountain Time Zone.
2000: Israel Railways opens Tel Aviv–University station in Tel Aviv.
2007: The southern section of the Kallang–Paya Lebar Expressway opens in Singapore.
2020: In Jacksonville, Florida, Hemming Park is renamed James Weldon Johnson Park to honor a civil rights activist instead of a Confederate veteran of the American Civil War.

Statistics

2.1M
dated elements
514k
buildings
381k
railroad miles
123
average age
1939
average year
1,825
contributors

Source: Overpass API, Overpass API, Planet
October 8, 2025

Historical statistics

News

August 11, 2025: Vespucci adds built-in support for editing OpenHistoricalMap.
April 27, 2025: OSM Building Viewer adds support for rendering an OHM building in 3D.

Older news

Events

November 14, 2025 – November 15, 2025: State of the Map Europe in Dundee, Scotland
November 12, 2025 – November 13, 2025: Unicode Technology Workshop in Mountain View, California