gerrymapping.com

A map of every area where Frisian was spoken, from the Frisii in Roman times through Redbad’s kingdom, the Frankish conquest, the Frisian Freedom, the big medieval floods, Habsburg and Dutch rule, and Napoleon, down to the three Frisias of today (West, East and North Frisia, plus Saterland and Heligoland).

Borders: Natural Earth, GADM and geoBoundaries. Some early borders are rough estimates, like Rorik’s fief around 850 and how far Frisian reached in North Holland before 1300.

Which year surprised you most?

I included the screenshot of Wiki (please see second slide)!

Source & how it was made:

This is Brno, the second-largest city in the Czech Republic, rendered as one big isometric pixel-art map – the whole city plus surroundings, including the Brno Reservoir, Hády hill and Tuřany airport. It was inspired by Isometric NYC.

Data:

• Buildings, roads, tram tracks, water and greenery: OpenStreetMap

• Terrain: Terrarium elevation tiles (AWS Open Data)

• Roof colours and details (skylights, dormers, solar panels, terraces): the city's own aerial photo from 11 March 2026, and the national ČÚZK orthophoto outside its coverage

• Trees in forests and parks are placed by land type, so they're not exact positions

Isometric means no perspective: parallel lines stay parallel and a house at the edge is the same size as one in the centre. That's exactly how late-90s city builders looked.

It's not a static picture. The interactive version has live trams and buses moving in real time from the regional transit feed, plus layers from the city's open data (roadworks, fire brigade call-outs, traffic accidents, statues and Stolpersteine).

Interactive map: https://brno2000.cz/?ref=reddit (the UI is in Czech, but you can just scroll around)

Happy to answer questions about the rendering pipeline.

This map shows the religious breakdown of Canada back in 1951, very interesting in my opinion. If you have any questions or comment please feel free to leave them down below.

Source: U.S. Social Security Administration. Names given to babies born in 2025, from Social Security card applications, counted by state of birth.

Based on my vibes of the region and some sense of idealism