OpenHistoricalMap
@ohm.mapstodon.space.ap.brid.gy
Explore the world throughout history – and local history, and prehistory. The #TimeMachine of maps, created by people like you and dedicated to the #PublicDomain […]
[bridged from https://mapstodon.space/@ohm on the fediverse by https://fed.brid.gy/ ]
[bridged from https://mapstodon.space/@ohm on the fediverse by https://fed.brid.gy/ ]
In December, the #openhistoricalmap community added 55,351 dated elements, 13,877 buildings, and 8,959 railroad miles. The average age of a dated element fell by 8 months, and the average year shifted one year later. All this with the help of 31 new contributors – welcome! […]
Original post on mapstodon.space
mapstodon.space
January 1, 2026 at 9:41 AM
In December, the #openhistoricalmap community added 55,351 dated elements, 13,877 buildings, and 8,959 railroad miles. The average age of a dated element fell by 8 months, and the average year shifted one year later. All this with the help of 31 new contributors – welcome! […]
We deeply appreciate all the help that @greeninfo provided over the years. We look forward to spending an unprecedented 2026 with the #historicalmapping and @OpenStreetMapUS communities.
January 1, 2026 at 9:17 AM
We deeply appreciate all the help that @greeninfo provided over the years. We look forward to spending an unprecedented 2026 with the #historicalmapping and @OpenStreetMapUS communities.
The main #vectortiles tileset contains route information for more informative transportation map styles. A new tileset contains territories as polygons, so your custom map can color in a country or other administrative region.
January 1, 2026 at 9:16 AM
The main #vectortiles tileset contains route information for more informative transportation map styles. A new tileset contains territories as polygons, so your custom map can color in a country or other administrative region.
The map can label #toponyms in #minoritylanguages #indigenouslanguages #ancientlanguages, like no other world atlas you’ve ever flipped through.
#localization #internationalization #multilingualism #writinghistory
#localization #internationalization #multilingualism #writinghistory
January 1, 2026 at 9:14 AM
The map can label #toponyms in #minoritylanguages #indigenouslanguages #ancientlanguages, like no other world atlas you’ve ever flipped through.
#localization #internationalization #multilingualism #writinghistory
#localization #internationalization #multilingualism #writinghistory
If you contribute to @wikipedia @wikidata #wikimediacommons #wikivoyage, you can join OpenHistoricalMap in just a few clicks, without having to juggle yet another password for yet another wiki. It works a lot like our existing OpenStreetMap login support.
#singlesignon #oauth2
#singlesignon #oauth2
January 1, 2026 at 9:13 AM
If you contribute to @wikipedia @wikidata #wikimediacommons #wikivoyage, you can join OpenHistoricalMap in just a few clicks, without having to juggle yet another password for yet another wiki. It works a lot like our existing OpenStreetMap login support.
#singlesignon #oauth2
#singlesignon #oauth2
#osmcha can visualize giant changesets without timing out or throwing an error. No one will sneak another empire into OHM without the community noticing it.
#howtohideanempire
#howtohideanempire
January 1, 2026 at 9:11 AM
#osmcha can visualize giant changesets without timing out or throwing an error. No one will sneak another empire into OHM without the community noticing it.
#howtohideanempire
#howtohideanempire
The biggest things that happened in #openhistoricalmap development over the past 6 months 🧵
https://forum.openhistoricalmap.org/t/staying-afloat-wikimedia-logins-ancient-writing-and-more/642
https://forum.openhistoricalmap.org/t/staying-afloat-wikimedia-logins-ancient-writing-and-more/642
Staying afloat, Wikimedia logins, ancient writing, and more
In the half a year since we started letting you log in using your OpenStreetMap account, localize map labels into your language, and more, our development team has been busier than ever. Keeping the lights on The last couple months have been unusually stressful for @Rub21, who thoughtfully implements the backend features and bug fixes you ask for. As a project on a shoestring budget, we also make him do double duty as our site reliability engineers. Like much larger sites you love, we’re seeing...
forum.openhistoricalmap.org
January 1, 2026 at 9:08 AM
The biggest things that happened in #openhistoricalmap development over the past 6 months 🧵
https://forum.openhistoricalmap.org/t/staying-afloat-wikimedia-logins-ancient-writing-and-more/642
https://forum.openhistoricalmap.org/t/staying-afloat-wikimedia-logins-ancient-writing-and-more/642
@osm_tech For #givingtuesday we’ll even make a twofer: OSM’s full history data and *our* full Historical data!
https://openstreetmap.app.neoncrm.com/forms/ohm
https://openstreetmap.app.neoncrm.com/forms/ohm
Invest in OpenHistoricalMap!
OpenHistoricalMap has the daunting (and awesome) mission of building the world’s most detailed out-of-date map. As a Charter Project of OpenStreetMap US, you can help sustain the development of OpenHistoricalMap by donating. Love what we do? Consider also becoming a member of OpenStreetMap US here. Thank you for your support!
openstreetmap.app.neoncrm.com
December 3, 2025 at 2:31 AM
@osm_tech For #givingtuesday we’ll even make a twofer: OSM’s full history data and *our* full Historical data!
https://openstreetmap.app.neoncrm.com/forms/ohm
https://openstreetmap.app.neoncrm.com/forms/ohm
In November, the #openhistoricalmap community added 62,421 dated elements, 21,441 buildings, and 8,072½ railroad miles. The average age of a dated element fell by 17 months, and the average year shifted one year later. All this with the help of 40 new contributors – welcome! […]
Original post on mapstodon.space
mapstodon.space
December 1, 2025 at 3:55 PM
In November, the #openhistoricalmap community added 62,421 dated elements, 21,441 buildings, and 8,072½ railroad miles. The average age of a dated element fell by 17 months, and the average year shifted one year later. All this with the help of 40 new contributors – welcome! […]
RE: https://mapstodon.space/@mapsmania/115617207189840155
A gorgeous new way to explore OpenHistoricalMap’s coverage of #historicboundaries
A gorgeous new way to explore OpenHistoricalMap’s coverage of #historicboundaries
mapstodon.space
December 1, 2025 at 7:42 AM
RE: https://mapstodon.space/@mapsmania/115617207189840155
A gorgeous new way to explore OpenHistoricalMap’s coverage of #historicboundaries
A gorgeous new way to explore OpenHistoricalMap’s coverage of #historicboundaries
Reposted by OpenHistoricalMap
What sorts of things do georeferenced maps make possible? This interface turns a street address into a point, finds georeferenced maps from the SLV that include that point, then displays the historic maps with a marker showing the location of the modern address. #slvresidency
November 23, 2025 at 3:50 AM
What sorts of things do georeferenced maps make possible? This interface turns a street address into a point, finds georeferenced maps from the SLV that include that point, then displays the historic maps with a marker showing the location of the modern address. #slvresidency
The OpenHistoricalMap database will be in read-only mode for a planned upgrade next Monday, November 24, at 19:00 UTC. We expect the upgrade to take approximately 3 hours. During that time, you won’t be able to save any changes, but you’ll be able to view and query the map as usual. Thank you […]
Original post on mapstodon.space
mapstodon.space
November 18, 2025 at 5:31 PM
The OpenHistoricalMap database will be in read-only mode for a planned upgrade next Monday, November 24, at 19:00 UTC. We expect the upgrade to take approximately 3 hours. During that time, you won’t be able to save any changes, but you’ll be able to view and query the map as usual. Thank you […]
Reposted by OpenHistoricalMap
There's a new version of the AllMaps editor out, which means I'll need to update my SLV georeferencing documentation! It works the same, but some things have been moved or added. Now includes a 'search' option in the georefencing panel that should make it easier to match maps.
November 12, 2025 at 11:57 PM
There's a new version of the AllMaps editor out, which means I'll need to update my SLV georeferencing documentation! It works the same, but some things have been moved or added. Now includes a 'search' option in the georefencing panel that should make it easier to match maps.
It was a privilege to introduce the software #internationalization and #localization community to #openhistoricalmap (and #OpenStreetMap and @maplibre) at #utw2025. Join us in mapping yesterday already!
#i18n #l10n
#i18n #l10n
November 13, 2025 at 7:07 PM
It was a privilege to introduce the software #internationalization and #localization community to #openhistoricalmap (and #OpenStreetMap and @maplibre) at #utw2025. Join us in mapping yesterday already!
#i18n #l10n
#i18n #l10n
In October, the #openhistoricalmap community added 87,784 dated elements, 28,666 buildings, and 15,202½ railroad miles. The average age of a dated element fell by 15 months, and the average year shifted one year later. All this with the help of 40 new contributors – welcome! […]
Original post on mapstodon.space
mapstodon.space
November 6, 2025 at 8:32 AM
In October, the #openhistoricalmap community added 87,784 dated elements, 28,666 buildings, and 15,202½ railroad miles. The average age of a dated element fell by 15 months, and the average year shifted one year later. All this with the help of 40 new contributors – welcome! […]
@RLin So, you're saying they were used at one point... in history? Any chance you'd have start_dates & end_dates for those points? (and permission to redistribute?) Asking for a friend...
November 5, 2025 at 1:11 AM
@RLin So, you're saying they were used at one point... in history? Any chance you'd have start_dates & end_dates for those points? (and permission to redistribute?) Asking for a friend...
Anyone mapping the history of the German Autobahn? We have a particularly fleißig mapper who's coordinating the daunting task of mapping the historical evolution of die Bundesautobahn.
He's off to a great start... and he'd love to have helpers. Maybe, just […]
[Original post on mapstodon.space]
He's off to a great start... and he'd love to have helpers. Maybe, just […]
[Original post on mapstodon.space]
November 5, 2025 at 12:59 AM
Anyone mapping the history of the German Autobahn? We have a particularly fleißig mapper who's coordinating the daunting task of mapping the historical evolution of die Bundesautobahn.
He's off to a great start... and he'd love to have helpers. Maybe, just […]
[Original post on mapstodon.space]
He's off to a great start... and he'd love to have helpers. Maybe, just […]
[Original post on mapstodon.space]
The breakage from last week is now fixed. You can once again use the map in any language and preview tagged images and Wikipedia articles in the sidebar. Please let us know if you continue to see any issues.
October 29, 2025 at 10:18 PM
The breakage from last week is now fixed. You can once again use the map in any language and preview tagged images and Wikipedia articles in the sidebar. Please let us know if you continue to see any issues.
@wragge Brilliant app! There are many communities that might benefit from this type of viewer. #seattle #nyc come to mind.
Now... what about adding a basemap of Melbourne in the 1970s?
https://www.openhistoricalmap.org/#map=13/-37.84631/144.93550&layers=O&date=1975-06-01&daterange=-1999-01-01 […]
Now... what about adding a basemap of Melbourne in the 1970s?
https://www.openhistoricalmap.org/#map=13/-37.84631/144.93550&layers=O&date=1975-06-01&daterange=-1999-01-01 […]
Original post on mapstodon.space
mapstodon.space
October 24, 2025 at 6:26 PM
@wragge Brilliant app! There are many communities that might benefit from this type of viewer. #seattle #nyc come to mind.
Now... what about adding a basemap of Melbourne in the 1970s?
https://www.openhistoricalmap.org/#map=13/-37.84631/144.93550&layers=O&date=1975-06-01&daterange=-1999-01-01 […]
Now... what about adding a basemap of Melbourne in the 1970s?
https://www.openhistoricalmap.org/#map=13/-37.84631/144.93550&layers=O&date=1975-06-01&daterange=-1999-01-01 […]
Reposted by OpenHistoricalMap
New prototype from my #slvresidency! This one lets you explore photos from the Committee for Urban Action collection by selecting one of the highlighted roads on a map of Victoria. It's very much work-in-progress and will probably change a lot, but you can […]
[Original post on hcommons.social]
[Original post on hcommons.social]
October 20, 2025 at 6:57 AM
New prototype from my #slvresidency! This one lets you explore photos from the Committee for Urban Action collection by selecting one of the highlighted roads on a map of Victoria. It's very much work-in-progress and will probably change a lot, but you can […]
[Original post on hcommons.social]
[Original post on hcommons.social]
We’re aware that the map on our homepage is currently nonfunctional in some languages. If you are seeing this issue, please switch the interface to English for now. Thank you for your patience.
https://forum.openhistoricalmap.org/t/broken-homepage-map-in-some-languages-and-inspector-images/580
https://forum.openhistoricalmap.org/t/broken-homepage-map-in-some-languages-and-inspector-images/580
Broken homepage map (in some languages) and inspector images
The map on the homepage is currently nonfunctional in some languages. If you are seeing this issue, please switch the interface to English for now. To change your interface language, click the 文A button in the top-right corner of the page, then choose English from the menu. Additionally, Wikipedia excerpts and image previews in the inspector sidebar are also broken. The only workaround is to click on the linked tag value. We are actively working on these issues. You can follow our progre...
forum.openhistoricalmap.org
October 22, 2025 at 10:30 PM
We’re aware that the map on our homepage is currently nonfunctional in some languages. If you are seeing this issue, please switch the interface to English for now. Thank you for your patience.
https://forum.openhistoricalmap.org/t/broken-homepage-map-in-some-languages-and-inspector-images/580
https://forum.openhistoricalmap.org/t/broken-homepage-map-in-some-languages-and-inspector-images/580
Had a great time presenting about how OHM & #wikimedia can be used together at @WikiConferenceNA. The focus of our talk was on how OHM data's tagging can include to add source information not just for geometry, but also for attributes, and that all of this is easily downloadable for reuse […]
Original post on mapstodon.space
mapstodon.space
October 19, 2025 at 10:05 PM
Had a great time presenting about how OHM & #wikimedia can be used together at @WikiConferenceNA. The focus of our talk was on how OHM data's tagging can include to add source information not just for geometry, but also for attributes, and that all of this is easily downloadable for reuse […]
If you’re in #loouhvull for #nacis #nacis2025, look out for these OpenHistoricalMap stickers. Snag one and keep it real! (For the record, we have a scale bar too.)
#realmapshavetimesliders
#realmapshavetimesliders
October 16, 2025 at 11:42 PM
If you’re in #loouhvull for #nacis #nacis2025, look out for these OpenHistoricalMap stickers. Snag one and keep it real! (For the record, we have a scale bar too.)
#realmapshavetimesliders
#realmapshavetimesliders
We've set up some new networking rules on our sites, so if you're seeing any 503 or other errors, please DM and we'll fix things up! #notyoubots
October 10, 2025 at 6:39 PM
We've set up some new networking rules on our sites, so if you're seeing any 503 or other errors, please DM and we'll fix things up! #notyoubots