OpenHistoricalMap

Explore the world throughout history – and local history, and prehistory. The #TimeMachine of maps, created by people like you and dedicated to the #PublicDomain. Charter project of @OpenStreetMapUS and companion to @openstreetmap.

Learn more: osm.wiki/OHM

(Mastodon account run by @jeffme @mxn and bridged as bsky.app/profile/ohm.mapstodon )

#OpenHistoricalMap #OpenStreetMap #DigitalHumanities #OpenData #HGIS

OpenHistoricalMap boosted:

⏳ Time is running out! Submit your OSM US Public Service Scholarship application to State of the Map US by midnight ET TONIGHT (Sunday, June 8th)!

Details: openstreetmap.us/news/2025/05/

Application: docs.google.com/forms/d/e/1FAI

#SOTMUS #publicservice #OpenStreetMap

OpenHistoricalMap boosted:

Applications are open for the OSM US Public Service Scholarship to State of the Map US in Boston! Thanks to all the individuals who donated so far, we've raised enough to invite 4 scholars to Boston.

Learn more: openstreetmap.us/news/2025/05/

#SOTMUS #publicservice #OpenStreetMap

OpenHistoricalMapohm@mapstodon.space
2025-06-02

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.
OpenHistoricalMapohm@mapstodon.space
2025-06-02

In the past month, the #OpenHistoricalMap community added 49,939 dated elements, 5,965 buildings, and 293,247¼ railroad miles. The average age of a dated element fell by 14 months, and the average year shifted over 6 months later. All this with the help of 31 new contributors – welcome!

wiki.openstreetmap.org/wiki/Op

OpenHistoricalMap boosted:
CharliePlettCharliePlett
2025-05-31

@ohm No!!! I always got annoyed mapping OSM because I couldn't save the history of places. Now I have such a place.

OpenHistoricalMap boosted:
OpenHistoricalMapohm@mapstodon.space
2025-05-31

@CharliePlett option to import green squares from #OpenHistoricalMap to OpenStreetMap? 😼 #mashup

OpenHistoricalMapohm@mapstodon.space
2025-05-31

@CharliePlett option to import green squares from #OpenHistoricalMap to OpenStreetMap? 😼 #mashup

OpenHistoricalMap boosted:
OpenHistoricalMapohm@mapstodon.space
2025-05-27

@ShionAmasato Love this example of finding information on old buildings and using OpenHistoricalMap as a place to store that data!

#DigitalHumanities #HGIS

OpenHistoricalMapohm@mapstodon.space
2025-05-27

@ShionAmasato Love this example of finding information on old buildings and using OpenHistoricalMap as a place to store that data!

#DigitalHumanities #HGIS

OpenHistoricalMap boosted:
2025-05-25

Two new themes have dropped:

For all the #train enthusiasts out there: mapcomplete.org/historic_rolli shows a map of historical locomotives and other rolling stock that are permanently placed somewhere - e.g. monuments, in a museum or just abandoned.

mapcomplete.org/historic_aircr is a similar map showing #aircraft , interlinking with #wikidata for the models.

Beware: they are dangerous: they are quite addictive to get everything right...

OpenHistoricalMap boosted:
2025-05-20

“Historians use data science to mine the past,” in PNAS, provides an overview of how historians are using computational methods to analyze digitized sources.

These methods become more essential as historians start working with more recent born digital records at scale. pnas.org/doi/10.1073/pnas.2508

OpenHistoricalMap boosted:
2025-05-14

#3089 - Modern

The image is a comic strip with a horizontal timeline ranging from 1850 to 2000. Various historical periods are labeled above the timeline with braces indicating the span of each period:

- From around 1850 to the late 19th century: “Early modern”
- From the late 19th century to the mid-20th century: “Modernist”
- Around the middle of the 20th century: “Mid-century modern”
- Just after mid-century to the late 20th century: “Postmodern”
- From the late 20th century onward: “Modern”

Below the timeline, a caption reads: “The use of the word ‘modern’ to refer to a bunch of specific historical periods is a fun prank by historians.”

Hidden text: "Scholars are still debating whether the current period is post-postmodern or neo-contemporary."
OpenHistoricalMapohm@mapstodon.space
2025-05-06

@grimalkina Next month’s #StateOfTheMapUS will have a healthy mix of the human and tech sides, both grassroots and institutional, that would be relevant to those in or adjacent to #GIScience. Our friends at @OpenStreetMapUS offer discounts for academic affiliation, and they just started raising funds to hopefully offer scholarships for affected government employees too. en.osm.town/@OpenStreetMapUS/1

OpenHistoricalMap boosted:

🍎 Happy Teacher Appreciation Day! We have a special offer for educators interested in attending State of the Map US: Use code "TEACHERS-ROCK" on the Academic & Nonprofit Admission ticket option for three days of SotM US for $150!
🔗 bit.ly/sotmus2025tix

This code is only valid on May 6, 2025, for the Academic and Nonprofit ticket. A .edu email address is required during registration to take advantage of the discount.

#teacherappreciation #StateoftheMapUS #OpenStreetMap #geography

OpenHistoricalMap boosted:
State of the Mapsotm@en.osm.town
2025-05-06

🎉 Exciting Announcement! 🎉

State of the Map 2025 is happening on October 3–5, at the University of the Philippines Diliman! 🗓📍

In cooperation with:
University of the Philippines
UP Resilience Institute
UPD Dept. of Industrial Engineering and Operations Research
UP Dept. of Geography
UP Dept. of Geodetic Engineering
UP Diliman College of Science
UP Diliman College of Engineering
National Institute of Geological Sciences

#SoTM2025 #sotm #sotm2025 #openstreetmap #stateofthemap #stateofthemap2025

Sotm venue host announcement: UP Diliman
OpenHistoricalMap boosted:

🍎 ✏️ 💻 Join fellow mappers for an education-focused Mappy Hour on May 21st at 8:00pm ET! Learn how to use OSMCha and how OSM can be used to teach Geography's 5 themes. Registration is free!

🔗 bit.ly/May2025-MappyHour

#OpenStreetMap #geography #OSM #geographyineducation

Mapping USA graphic
OpenHistoricalMapohm@mapstodon.space
2025-05-02

In the past month, the #OpenHistoricalMap community added 50,639 dated elements, 5,919 buildings, and 3,996¼ railroad miles. The average age of a dated element fell by 15 months, and the average year shifted 9 months later. All this with the help of 25 new contributors – welcome!

wiki.openstreetmap.org/wiki/Op

OpenHistoricalMap boosted:
AnnbassAnnbass
2025-05-01

I am tickled to see this bit of web trivia listed in @TheSeattleTimes “Today in History”. I represented Boeing to the () for years. That international Web standards org was made possible because @timbl and @CERN generously gave the initial web code to the world for free — apparently on April 30, 1993. Many of my friends here are from that connection. I am deeply grateful for that experience. And of course that we have the Web!

Newspaper clipping saying that Tim Berners-Lee and CERN gave the original Web code to the public for free on April 30, 1993.
OpenHistoricalMap boosted:

OSM US now offers microgrants for member travel, events, & educational initiatives. The Spring 2025 cycle closes on Monday, May 5th, so get those applications in for any spring/summer travel or events!

Learn more: openstreetmap.us/get-involved/

#OpenStreetMap

OpenHistoricalMap boosted:

Learn how to navigate map libraries with Jeff Meyer at State of the Map US! Join him on Thursday, June 19th, for his workshop exploring The Leventhal Map Center and OpenHistoricalMap.

Get all the details: bit.ly/SOTMUS2025_schedule_pre

Client Info

Server: https://mastodon.social
Version: 2025.04
Repository: https://github.com/cyevgeniy/lmst