OpenHistoricalMap
@openhistoricalmap.org
Explore the world throughout time, mapped in minute detail by people like you & dedicated to the public domain. OHM is a charter project of @osmus.bsky.social and cousin of @openstreetmap.bsky.social. #oldmaps #dh #hgis
https://www.openhistoricalmap.org
https://www.openhistoricalmap.org
We deeply appreciate all the help that #GreenInfo provided over the years. We look forward to spending an unprecedented 2026 with the #HistoricalMapping and @osmus.bsky.social communities!
January 1, 2026 at 9:28 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 @osmus.bsky.social 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 9:28 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.
January 1, 2026 at 9:28 AM
The map can label #toponyms in #MinorityLanguages #IndigenousLanguages #AncientLanguages, like no other world atlas you’ve ever flipped through.
If you contribute to @wikipedia.org @wikidatacommunity.bsky.social #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.
January 1, 2026 at 9:28 AM
If you contribute to @wikipedia.org @wikidatacommunity.bsky.social #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.
#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.
January 1, 2026 at 9:28 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.
Have you seen OldInsuranceMaps.net? It's a fantastic, easy-to-use and *Sanborn-focused* georectification and stitching site. It's run by @mradamcox.bsky.social, who loves working with users of his site. Not sure if this is helpful, but always good to know about!
OldInsuranceMaps.net
A crowdsourcing site for creating and viewing georeferenced mosaics of historical Sanborn fire insurance maps
OldInsuranceMaps.net
November 21, 2025 at 8:15 PM
Have you seen OldInsuranceMaps.net? It's a fantastic, easy-to-use and *Sanborn-focused* georectification and stitching site. It's run by @mradamcox.bsky.social, who loves working with users of his site. Not sure if this is helpful, but always good to know about!
...and he'd love to have helpers. Maybe, just maybe, someone's even already put this together as part of some HGIS effort?
Editing on OpenHistoricalMap is easy & we have guides for how to tag things for sourcing and retrieval!
wiki.openstreetmap.org/wiki/OpenHis...
#Crowdsource #OpenData
Editing on OpenHistoricalMap is easy & we have guides for how to tag things for sourcing and retrieval!
wiki.openstreetmap.org/wiki/OpenHis...
#Crowdsource #OpenData
OpenHistoricalMap/Projects/Germany/Autobahn - OpenStreetMap Wiki
wiki.openstreetmap.org
November 5, 2025 at 12:43 AM
...and he'd love to have helpers. Maybe, just maybe, someone's even already put this together as part of some HGIS effort?
Editing on OpenHistoricalMap is easy & we have guides for how to tag things for sourcing and retrieval!
wiki.openstreetmap.org/wiki/OpenHis...
#Crowdsource #OpenData
Editing on OpenHistoricalMap is easy & we have guides for how to tag things for sourcing and retrieval!
wiki.openstreetmap.org/wiki/OpenHis...
#Crowdsource #OpenData
Reposted by OpenHistoricalMap
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.
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.