Historical Polities is a simple online tool to build graph of political entities linked through political relationships using the model developed by Euratlas. It is a simple model which offers three kind of political entities and nine types of relationships. A detailed description is available in the article A Formal Model for Historical Atlases and Historical Knowledge.
As a guest user, you can visualize the graphs that have been realized. If you want to make your own graph, you need to register by first requesting an invitation code to firstname.lastname@example.org
See the tutorial for a simple introduction to Euratlas Historical Polities.
This project is a work in progress. Hence, it may change frequently mainly to include new features. If you encounter any technical issue, please write to email@example.com