I got 9/15 and should've got some more. Basutoland/Lesotho and Dahomey/Benin were impossible for me, they're small countries which I know the current name and the location of but not a lot else. Then I tried Spain and Portugal for Iberia (although I was aware that they were actually not correct) and was surprised to find Georgia as the answer. Learned about Caucasian Iberia like this.
This was an excellent quiz! I had trouble with a lot of them (only got 3 right)! I'm surprised to find that so few got "British Honduras," because although I didn't know the answer I just guessed all the Central American countries until I got it right :P
I loved this quiz. I just knew the Nyasaland Basutoland because those were the names for them when they were Part of the British Empire. Also lake Nyasa, and Basuto sounds like Maputo, but mostly the first one.