Awesome work. I mean this in the best way, I am really surprised that I find this so interesting.
If you don't mind a plug in the name of ye ol' nationalism, I actually think the Flag of Armenia has a very interesting backstory due to how much it has changed, and the fact that established Armenian civilization is nearly Neolithic. And, its relationship to the disputed territory of Nagorno-Karabagh, with an interesting flag of its own
Edit: Also, unrelated, Mozambique!! I'm curious myself.
Edit 2, Edit Harder: You already did Mozambique. Noice.