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 city of Königsberg as of 1920. Right: The same location today.

On this day

Selected establishments and disestablishments on September 9:

1816: The Oberamt of Meisenheim is established in the landgraviate of Hesse-Homburg.
1850: California becomes the 31st state of the United States.
1850: Utah Territory is established from the territory ceded by Mexico in the 1848 Treaty of Guadalupe Hidalgo, from territory to be purchased from the state of Texas in December 1850, and from unorganized federal territory.
1927: The 107th Infantry Memorial is dedicated in New York City.
1931: The Tábor kahal is established in Czechoslovakia.
1948: North Korea is established.
1993: In Kazakhstan, Dengiz district is renamed Kurmangazinsky district in honor of Kurmangazy Sagyrbayuly.
2016: A section of the Donghae Expressway opens between Donghae and Samcheok in South Korea.

Statistics

1.4M
dated elements
400k
buildings
247k
railroad miles
132
average age
1931
average year
1,494
contributors

Source: Overpass API, Overpass API, Planet
September 2, 2024

Historical statistics

News

July 30, 2024: Join us in celebrating 15 years since OpenHistoricalMap first appeared on the Internet.
July 7, 2024: Gramps Web can now visualize your family tree on an OpenHistoricalMap base map.
June 26, 2024: Changeset 125,000 is created by mane72.
June 24, 2024: Recorded talks from State of the Map U.S. are now available on the OpenStreetMap U.S. website.
June 18, 2024: The official stylesheets have moved to a new location once again. If you have a website or application that embeds an OpenHistoricalMap-based style, please update to the new URLs to avoid showing broken map tiles.