Please allow PNG as a type-in for Papua New Guinea. I missed it and I was just siting here trying to think of who could have controlled that area in 1900!
I think it was mildly confusing that when you guess the UK, all of the empire lights up BUT you have to also guess several of those former colonies to get their separate territorial possessions (Australia, New Zealand, and South Africa). Similar issue with Spanish Empire countries. Idk how to fix it, but it was a weird detail that caused much frustration! haha