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Historical
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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.
Browse the map
Reuse the data
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
Improve the map
Improve the software
Donate
Then and now
From
OpenHistoricalMap's community projects
Left:
The Universal Exhibition of Paris in 1867.
Right:
The same location today.
Visit in OpenHistoricalMap
More featured sites
On this day
Selected establishments and disestablishments on April 24:
1794
The
Republic of Bouillon
is proclaimed as a client state of France.
1802
Georgia
cedes to the United States all territory south of North Carolina and Tennessee, east of the Mississippi River, north of 31 degrees north latitude, and west of the present limit of Georgia. This area became
unorganized federal territory
1854
Galicia and Lodomeria
is divided into
Verwaltungsgebiet Lemberg
and
Verwaltungsgebiet Krakau
, based in present-day Lviv and Kraków, respectively.
1917
Whitebridge Platform
opens along the Belmont Branch in New South Wales.
1935
In the Lombardy region of Italy, the Mantua-Desenzano and Mantua-Brescia sections of the
Brescia–Mantua–Ostiglia tramway
end passenger service.
1975
East Brook Mall
opens in Mansfield, Connecticut.
1981
The
Kazakhstan National Museum of Instruments
opens in Almaty.
2023
Cafe Camtown
opens in Cambridge, England.
More changes on April 24
Other dates
Statistics
3.1
dated elements
611
buildings
442
railroad miles
102
average age
1955
average year
2,041
contributors
Source:
Overpass API
Overpass API
Planet
April 1, 2026
Historical statistics
News
April 16, 2026
The
official vector tilesets
are now available as
TileJSON
April 15, 2026
Our tagging pages
more consistently
link
to other OHM tagging pages instead of often conflicting OSM tagging pages.
April 14, 2026
The
tile server
has migrated from
Tegola
to
Martin
for improved reliability and performance.
April 1, 2026
OpenHistoricalMap Quality and Coverage Stats
is a new dashboard for tracking common errors in OHM data.
February 20, 2026
JOSM
’s
Changeset Viewer
plugin adds support for
OHMCha
Older news
Events
April 30, 2026 – May 3, 2026
FOSSGIS OSM Community Meetup 2026 Number 25
in Essen, Germany
June 11, 2026 – June 13, 2026
State of the Map U.S.
in Madison, Wisconsin
June 16, 2026 – June 19, 2026
14th Symposium on Mexican Geography Instruction
in Morelia, Michoacán, Mexico
Past events
Recordings
Policies and guidelines
Tagging
Code of conduct
Good practice
(draft)
Land acknowledgment
(draft)
Resources
Starting points for research
How to trace and work with old maps
Attribution of import sources
Community projects
Reusing the data in your own project
Contributing to technical development
OpenHistoricalMap bibliography
OpenHistoricalMap tools
Connect
Forum & Chat
GitHub
OSMUS Slack
#openhistoricalmap
Discord
#openhistoricalmap
Mastodon
Bluesky
Mailing list
More ways to connect
Retrieved from "
Categories
OpenHistoricalMap
Portals
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