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

On this day

Selected establishments and disestablishments on January 20:

1680: José de Garro conquers the Colónia do Sacramento from the Spanish Empire.
1720: Under the Treaty of Stockholm, Sweden cedes parts of Swedish Pomerania to Prussia.
1817: The Kingdom of Brazil conquers the Liga Federal eastern provinces.
1874: Under the Pangkor Treaty, the Sultan of Perak submits to the British Empire.
1925: Under the Treaty of Beijing, the Empire of Japan returns northern Sakhalin to the Soviet Union.
2016: A Party City store closes in Racine, Wisconsin, after nine years in business.
2021: Greece extends the maritime territorial limit around the Ionian islands from 6 nautical miles (11 km; 6.9 mi) to 12 nautical miles (22 km; 14 mi).