Today's miniconference will be closed by Dominik Kremer! The DigiKAR project models the Holy Roman Empire as a dynamic network of places, using asymmetric time queries to visualize spatial complexity across shifting dominion rights.
#TemporalModeling #HistoricalGIS #DH2025 #DigitalCartography

Diagram of historical sea routing graph for Europe.

Diagram of historical sea routing graph for Europe, showing (in red) weighted edges in the zone favoured for coastal sailing (~5km).

🧭 Building a lightweight sea-routing graph for historical GIS & DH use cases beyond simple port-to-port hops. Edges are weighted for ~5km coastal preference. Aiming for serverless exploration of connectivity in historical maritime trade. ⚓️ #MaritimeHistory #HistoricalGIS #DigitalHumanities

A little awestruck by the great work over at madridxix.es.

#HistoricalGIS #DigitalHumanities #UrbanHistory #Madrid

Globe visualisation of Indigenous Place Names in North America, a WHG Place Collection [https://doi.org/10.60681/whg-collection-172]

🌍 Recent updates to the WHG user interface give faster loading and globe visualisations.

Image: Indigenous Place Names in North America, a WHG Place Collection at doi.org/10.60681/whg...

Explore more at: whgazetteer.org !

#DigitalHumanities #HistoricalGIS #GeoHumanities #HistoricalGeography

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.

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

Going east with Manuel I Komnenos. First step of the journey to Syria is to get from Lopadion to Attaleia. Contour lines are approximate 8-hour marches, the red line is from an optimal-path analysis but is close both to roads and known 12th c. routes. #historicalGIS #medieval

Channeling my inner Mu'awiya today by really wishing that Arwad wasn't a thing. Annoying little island, no water, and just good for invading things like Syria or, in this case, my legend. #historicalGIS

I like Garamond on my maps because it's crisp and clean, but this time it's not going to work because it doesn't handle diacritics from transliterated Arabic very well (see picture). Times New Roman does the job but it's also Times New Roman. Any font recommendations? #historicalGIS #medieval

A simple grey map showing routes as red lines and waystations as green dots in central Italy

A photographed page from a digitized book listing several central Italian routes in two columns

Made it to Rome, Bologna and Florence this week in #historicalGIS data cleaning for @emdigit.bsky.social. This time I'm sharing it with a page from one of the itineraries for comparison (OC1623, or Ottavio Codogno's 1623 Compendio delle poste) #earlymodern #bookhistory 🗃️

I love georeferencing old stuff #historicalgis #digitalhistory

A simple gray map shows southern Italy from Rome to Palermo and Messina. Points reflect waystations connected by red lines reflecting likely routes.

Engraving of Giovanni de Rossi's 1695 L'Italia con le sue poste

Progressed up to the ankle of southern Italy this week. Early modern itineraries based on named locations, narrative, topography, and Roman-modern road networks. Bonus 17C map for comparison 🤩 #historicalGIS #digitalhistory @emdigit.bsky.social

#Historical #Geospatial #Dataset Of #Cyprus From #British #Administration #Maps Of #19thCentury
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doi.org/10.1016/j.di...
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kitchener.hua.gr/en
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#GIS #spatial #mapping #hydrology #landcover #roads #demographics #survey #cartography #triangulation #colonial #history #spatiotemporal #HistoricalGIS

Procession routes

The more 19thC processions I plot, the more it looks like a tube map. #skystorians #HistoricalGIS

Travel back in time with "imagineRio Narratives" in the Journal of Digital History! Discover how digital storytelling is transforming the exploration of Rio de Janeiro's historical landscape #digitalhistory #historicalgis

Plotted every place mentioned in my book manuscript using Google Earth, which required cross-referencing three other historical maps. Now it's the cartographer's problem. #HistoricalGIS