Too easy -- could have added some African kingdoms or countries that were protectorates of a European power -- Rwanda, Burundi, Swaziland, Lesotho etc.
What about South Africa? Just as Canada is said to be independent when it became a dominion way back in 1867, South Africa became one in 1910. So shouldn't it be called independent?
I think the DR Congo was still a private property of king Leopold II at this time.
Here is a good site to read in case you are curious: https://study.com/academy/answer/when-did-abyssinia-become-ethiopia.html
very interesting to see the vast changes today
Great quiz