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: Seneca Village, a small community of former slaves on the West Side of Manhattan, as of 1844. Right: The same location today.

On this day

Selected establishments and disestablishments on December 30:

1892: Vernon, British Columbia is incorporated as a city.
1913: The Rizal Monument is unveiled in Manila, Philippines.
1922: The Soviet Union is established.
1947: King Michael I of Romania is forced to abdicate, resulting in the abolition of the monarchy and the proclamation of the Romanian People's Republic.
1975: The Democratic Republic of Madagascar is formally proclaimed, more than a week after the approval of a constitutional referendum.
1996: Seminary Oaks Park is opened in Menlo Park, California.