iiinova — where your digital self keeps evolving

OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 26/09/2026

Excited to be at #WikiConferenceNA in Edmonton this weekend. Find @mxn to hear about how OpenHistoricalMap can be a partner to #Wikipedia in the campaign against #recentism in the digital humanities.

A pile of stickers for OpenHistoricalMap, some showing a diff removing the text WP:RECENT, others saying it isn’t a real map if it doesn’t have a time slider. Nearby on the same table are stickers for the Internet Archive and some Edmonton postcards.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 23/09/2026

That’s the good news. The bad news is the influx of extant features has cut the average age of a dated element in half, to only 50 years, and the average year in OHM shifted from 1960 to 1992.

Graph of OpenHistoricalMap by represented time period in elements along the Y axis by date represented along the X axis. The graph shows exponential growth beginning in the 18th century going up to 7 million in the present day.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 23/09/2026

So what was the big jump in August all about? One of our contributors, flha127, has been busy importing Belgium’s local boundaries from #Statbel, buildings and roads in various French cities, and other open government data. At the same time, we cleaned up […] [Original post on mapstodon.space]

Modern-day map of Belgium highlighting 29 million objects concentrated mostly in the southern half of Belgium.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 23/09/2026

September is almost over and we didn’t post #OpenHistoricalMap statistics for August yet! Since the start of August, we added 3.9 million dated elements, more than doubling what we had before. That includes 1.6 million more buildings and 17,192¼ more railroad miles than we had before. #HockeyStick

Graph of OpenHistoricalMap coverage growth in number of dated elements along the Y axis by date accessed along the X axis. Steady linear growth from 1 million in May 2022 to 2.5 million in March 2026, followed by some spurts up to 3.5 million by July, then finally a spike in August and September up to 7.5 million.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 20/06/2026

Hot off the heels of #SotMUS2026, we also have full historical coverage of I-90 in #Wisconsin thanks to Pilgerobst, as well as the highways around #SanAntonio thanks to @CharliePlett. The road map is starting to look a little less blank!

Map of Wisconsin showing the entire length of Interstate 90 from Beloit to La Crosse.

Map of San Antonio showing Interstate 10/U.S. Route 87 and Interstate 37 going through the city, as well as the Interstate 410 Connally Loop.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 20/06/2026

Our road mappers have been hard at work adding major highways throughout the United States. #Route66 is more or less fully mapped from 1926 to present between the Colorado River and Seligman, and several related routes are mapped too, thanks to Matthew Anderson. #Route66turns100

Interstate 40 and U.S. Highways 66 and 93 around Kingman, Arizona.

U.S. Highway 89 joins U.S. Highway 66 at a T junction near Ash Fork, Arizona.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 02/04/2026

This is one of the largest increases in recent coverage we’ve ever seen, driven by an import of #GURS addresses in #Slovenia.

A heatmap of 1,771,955 elements modified in March, zoomed in on Slovenia, which resembles a population density map due to all the addresses added.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 31/03/2026

Community members are scheduled to present at events in at least four countries in the next few months. Our event calendar has never looked so international! 🇦🇹 🇩🇪 🇺🇸 🇲🇽 wiki.openstreetmap.org/wiki/OpenHis… Are you interested in […] [Original post on mapstodon.space]

Events. April 10, 2026: Graz Linux Days 2026 in Graz, Austria. 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.

A table ranking countries by the number of events. United States leads with 23 events, trailed by Germany with two. Austria, Belize, Colombia, the United Kingdom, Mexico, the Netherlands, Panama, and the Philippines each have had one.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 03/02/2026

This is the single largest increase in the average age of an element and the single largest decline in the average year since recordkeeping began in June 2023. That’s actually a good thing: it means we’re mitigating #recentism, bringing more historical balance to our coverage.

A line chart of dates along the X axis from May 2025 to present and average age in years along the Y axis from 110 to 140 years. The series seesaws between 125 and 135 except for a drop toward the latter half of last year to 120 before rebounding to 127 this month.

A line chart of dates along the X axis from May 2025 to present and average year along the Y axis from 1920 to 1950. The series mostly stays within the 1930s, steadily rising to the early 1940s in 2025 before a steep drop back to 1938 this month.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 01/01/2026

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.

A raw view of the data showing route_lines features with indexed tram route attributes.

A raw data view of the world highlighting country territories as polygons, showing details about Numidia and France.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 01/01/2026

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

Hi Example, In order to complete your request, OpenHistoricalMap needs permission to access information about you, including your email address, on all projects of this site. No changes will be made with your account.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 01/01/2026

#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

OSMCha showing a changeset that adds many streets to Mannheim.

OSMCha showing a changeset that adds boundaries around the world to the French Empire.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 01/01/2026

#scrapers and #crawlers are waging a constant #DDOS on our site and driving up cloud hosting costs. We’re coping, but if it keeps getting worse, will OHM last? 🫠

Protection pack (web ACL) activity: summary of your protection rules and how their order contributes to terminating actions. Block-Old-Chrome-UA, Block-countries, and ipset-block-production siphon off about a sixth of the traffic. Of 53,720 requests, 47,700 are allowed and 6,030 are blocked.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 13/11/2025

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

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 05/11/2025

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]

A map of central Europe, focused on Germany that highlights the progress of an OpenHistoricalMap project to depict the historical evolution of the German Autobahn.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 17/10/2025

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

Four OpenHistoricalMap stickers say it isn’t a real map if it doesn’t have a time slider. The stickers are surrounded by other map-related stickers.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 03/10/2025

Mabuhay @sotm! If you’re in Manila for #sotm #sotm2025, come find @mxn for some troublemaker’s stickers!

Three stickers saying I map abandoned railways, boundaries you can’t see, and overlapping buildings like there’s no tomorrow: openhistoricalmap.org.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 05/09/2025

¡Buenas días de #Medellín y #SOTMLatAm #SotMLatam2025! ¡Agradecemos a encontrar todos los mapeadores aquí! @rub21 y @mxn van a presentar sobre la tema de #OpenHistoricalMap el sábado.

Un folleto de OpenHistoricalMap en un tablón de anuncios.

Rubén y Minh en el vestíbulo de la biblioteca.

Un OpenHistoricalMap y muchas pegatinas en la mesa de regalos.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 02/07/2025

June saw more newly added buildings than in any month since recordkeeping began (for us, anyway). Most of it comes from an import of the Basic Register of Addresses and Buildings (Basisregistratie Adressen en gebouwen, #BAG) that’s getting underway in the […] [Original post on mapstodon.space]

All-time map of the world marking buildings added in June 2025, with a strong concentration in Central Europe and England, plus a smattering across North America, Latin America, the Middle East, and Asia.

Map of Voorne aan Zee, Netherlands, marked with buildings added in June 2025, with particularly strong concentrations in Rockanje, Oostvoorne, and Kruiningergors.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 14/06/2025

Labels on the map match your preferred language, just like the rest of the site. You can set your preferred language in settings. Now you can understand the map even if you don’t speak a language that was common halfway around the world centuries ago. For […] [Original post on mapstodon.space]

Belgium, Luxembourg, Cologne, and other place labels in French as of 100 years ago

Belgium, Luxembourg, Cologne, and other place labels in Dutch as of 100 years ago

Belgium, Luxembourg, Cologne, and other place labels in German as of 100 years ago

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 14/06/2025

Do you already contribute to @openstreetmap? You can start contributing to OpenHistoricalMap too in just a few clicks, without having to juggle yet another password for yet another mapping site. Once you have a taste of OSM #SingleSignOn via #OAuth2, you’ll never look back.

Authorization Required: Authorize OpenHistoricalMap to access your account with the following permissions? Read user preferences, Sign in using OpenStreetMap.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 02/06/2025

We’ve never seen such a sharp uptick in new railroad coverage like we’ve experienced in May, particularly in present-day Argentina, Finland, and Mexico.

Line graph of railroad miles by month from June 2023 to June 2025 showing a steady rise from about 170,000 to almost 320,000 railroad miles, including a sharp uptick since May 2025.

Cumulative world map of everything in OpenHistoricalMap regardless of time period, highlighting railroad tracks modified in May 2025. The rail networks of Mexico, Finland, and Argentina stand out in their entirety, and to a lesser extent in various parts of Europe.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 15/04/2025

@aoppo whipped up a user script to easily navigate #OpenHistoricalMap while reading a #Wikipedia article. You can install it in your personal Wikipedia account: globstory.it/wikipedia-user-script It’s one of many ideas for cooperation between the […] [Original post on mapstodon.space]

The English Wikipedia article on World War II with a map of Finland as of 2025 on the right side. (© Wikipedia contributors, CC BY-SA 4.0)

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 27/03/2025

Start and end #dates are very important for a #HistoricalGIS project. We managed to stuff dates into more of the website’s nooks and crannies, so you always know which stage of a boundary or building’s evolution you’re looking at, or whether it’s even the one you’re looking for. #HGIS

A screenshot of the relation detail page for the PNC Center chronology relation, showing the start date of 1979 in the title next to the name, derived from the start_date tag of 1979-03-28. The two members of the chronology relation, Central Trust Center and PNC Center, have labels that indicate the date ranges as 1979 to 1988 and 1988 to present, respectively.

A screenshot of search results for “Pando” from Nominatim: Town Pando, United States, 1860 to 1884; Wood Pando, United States, 16000 BCE to present.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 27/03/2025

Our #OSMCha instance makes it easy to inspect large changesets for subtle changes. Sometimes, those changes look very wrong, but only because modern aerial imagery doesn’t line up with the historical features being mapped. Now you can visualize changesets […] [Original post on mapstodon.space]

Screenshot of OSMCha visualizing some modified buildings against Mapbox Satellite aerial imagery that shows fewer, much larger buildings from a much more recent date.

Screenshot of OSMCha visualizing the addition of some Pacific Electric railways against an unfiltered OpenHistoricalMap basemap that shows all the features in the vicinity of this changeset from all time.

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 12/02/2025

It took one mapper several months to map the British Empire and the hundreds of boundary changes involving its subdivisions and dependencies over the centuries. We’re a bit relieved it’s over – the huge boundary changes came close to melting the server a few […] [Original post on mapstodon.space]

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 05/02/2025

Anyone have a link to a mirror of the full resolution GSHHG national shoreline data? You know... just in case... asking for a friend. www.ncei.noaa.gov/products/shorelin…

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OpenHistoricalMap @ohm.mapstodon.space.ap.brid.gy · 04/02/2025

We just added a button to toggle the *revolutionary* new globe view from @maplibre and we think it’ll turn some heads. For now, it’s only available in a special “embed” version of the map. This is same version of the map as when you Share a map from our […] [Original post on mapstodon.space]

A globe depicting Southeast Asia on this day in 1925, including the Philippine Islands, the Colony of Labuan, the Federated Malay States, the Dutch East Indies, Australia, the Dominion of New Zealand, and the New Hebrides.

A globe depicting the Northern Atlantic region on this day in 1725 in a novelty woodblock style, including the British Arctic Territories; New France; the Colonies of Pennsylvania, South Carolina, the Bahamas, and Bermuda; New Spain; the Kingdom of Mexico; the Viceroyalty of Peru; Brazil; St. Helena Colony; the Danish Gold Coast; the Kingdoms of Sardinia, Portugal, Spain, and Great Britain; and Sweden. A colorful sea dragon lies in wait in the middle of the ocean.

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