Hey! Great work on the 1000 years of europe borders video! Any chance you'd be willing to share where you got the data from? I'm a software engineer with a graphics background, and I thought your video was awesome. It inspired me to try to make an interactive version of it. Some of the ideas that initially pop to my mind are being able to zoom into the map, having a slider that lets you choose a particular year (or play a smaller interval of the entire animation), and maybe link the different countries/empires/kingdoms to Wikipedia articles about them..
Thanks anyway for the really cool video!