How to download Roman Empire borders from OpenHistoricalMap for different periods?

Hello everyone,

I only speak Spanish, so I am using a translator to write this message.

I am having a problem because I do not understand how to properly download data from OpenHistoricalMap. I am working on a project in QGIS, and I would like to download the borders of the Roman Empire for different periods of time.

I would be very grateful for any help or guidance on how to do this.

Thank you very much in advance to anyone who can assist me.

I have found the best way is to use JOSM with the OpenData plugin. Then query for the boundaries and download as GeoJSON format.

You can find more information here. OpenHistoricalMap/QGIS - OpenStreetMap Wiki

Also you can query Overpass Turbo but sometimes it’s hard to load big relations. You could modify this query in this post