u/bachan41

I created these maps of Europe's changing political borders over the last three centuries.

Data visualization and coloration comes from the OpenHistory.app project. OpenHistory is a new interactive tool for browsing all human history, including most significant events and territories. OHA will always be totally free, no ads, and is fully open-source. I created OHA from a personal love of world history and a dream to have a beautiful way to interact with it.

Border data comes from the community-run OpenHistoricalMap.org project, which has been creating an incredible dataset of world history at all levels of granularity, from imperial borders to street-level details. It's an incredible project and if you are interested in historical maps, I highly encourage you to support it!

Mapping Europe's changing political borders over the last three centuries.

Data visualization and coloration comes from the free and open source OpenHistory.app project. OpenHistory is a new interactive tool for browsing all human history, including most significant events and territories. OHA will always be totally free, no ads, and is fully open-source. I created OHA from a personal love of world history and a dream to have a beautiful way to interact with it.

Border data comes from the community-run OpenHistoricalMap.org project, which has been creating an incredible dataset of world history at all levels of granularity, from imperial borders to street-level details. It's an incredible project and if you are interested in historical maps, I highly encourage you to support it!

OpenHistory.app will forever be totally free and open source, and I hope it's a useful educational tool for you and your students to enjoy!

It includes most historical borders and significant events from 600 BCE to present. Its data comes from the amazing OpenHistoricalMaps territory dataset, combined with Wikipedia/Wikidata for events.

I have always dreamed of making this project since I had a love of history ingrained me by my AP Euro and AP US History teachers in high school. I'm really excited to share it with you. Thank you to all history teachers around the world!