You might perhaps be interested in my ongoing side-project "Factonaut" at https://www.factonaut.com/ https://www.factonaut.com/ It is a (closed-source) Windows

You might perhaps be interested in my ongoing side-project "Factonaut" at https://www.factonaut.com/ https://www.factonaut.com/ It is a (closed-source) Windows application that allows you to compile historical events in a knowledgebase and easily create chronological overviews. Currently it only supports very simple chronological tables, not maps. The project is in an early stage, and I have a huge to-do list, but only little free-time to work on it. But the application is useable. Its main speciality is that it can handle Julian and Gregorian calendar dates in the same chronology and sort them correctly.