Mastodawn

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.

CharliePlett Nov 26, 2025

State of the Map Europe Nov 26, 2025

Where did #sotmeu25 delegates travel from?
Big maps are great, so we had one beside the Info Desk and asked people to add a pin.

It looks like there are pins on 23 countries: UK, Republic of Ireland, Spain, France, Belgium,
Netherlands, Germany, Denmark, Czech Republic, Slovakia, Hungary, Serbia, Bosnia & Herz, Greece, Italy, Switzerland, Morocco, Nigeria, Nepal, Australia, Canada, USA, Belize.

It was so great to have over 150 people from the #OpenStreetMap community in one place!

CharliePlett Aug 18, 2025

A historical timelapse of the departments of Honduras on OpenHistoricalMap.

https://commons.wikimedia.org/wiki/File:Timelapse_of_Honduran_Departments.webm

#openhistoricalmap #honduras

CharliePlett Jul 31, 2025

Martijn van Exel Jul 29, 2025

The sustainability and future of @OpenStreetMapUS Charter Projects @MapRoulette, @ohm and OSMCha are in jeopardy. We were able to hire our awesome software engineer, Jake Low, last year thanks to generous financial support from corporate OSM users. But most still keep OSM for granted, pouring $ into things like Overture instead (they are hiring for a new ED with a salary that is almost as much as our entire annual budget). Read our latest blog post and please share. https://openstreetmap.us/news/2025/07/charter-projects-face-uncertain-future/

Charter Projects Face Uncertain Future as Financial Support Ends

Many of the best OpenStreetMap tools emerge organically as personal projects built by members of the global community. Informal structures can be great for getting a project off the ground, but at some point...

CharliePlett Jul 20, 2025

I have now mapped the history of the Spanish Empire including it's viceroyalties and captaincy generals on OpenHistoricalMap.

https://commons.wikimedia.org/wiki/File:SpanishEmpireTimelapse.webm

https://www.openhistoricalmap.org/user/CharliePlett/diary/43

#openhistoricalmap #qgis #spanishempire

CharliePlett Jun 3, 2025

Show thread

OpenHistoricalMap Jun 2, 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.

CharliePlett May 28, 2025

My OpenStreetMap daily edit graph has taken a beating since I started mapping exclusively on OpenHistoricalMap.

#openhistoricalmap #openstreetmap

CharliePlett Apr 8, 2025

OpenHistoricalMap Mar 29, 2025

OpenHistoricalMap and open source software let you tell stories in the proper historical context:

https://mastodon.social/@CharliePlett/114247969119307235

Learn how to incorporate OHM into your own project:

https://wiki.openstreetmap.org/wiki/OpenHistoricalMap/Reuse

#dataviz

OpenHistoricalMap/Reuse - OpenStreetMap Wiki

CharliePlett Mar 29, 2025

I created a website called https://themennonitemap.org where I'm displaying all Mennonite villages that have ever existed. When you click on a settlement it changes the map date to the founding date of the village.
#openhistoricalmap #mennonite #maplibre