Colonial Countries

That's why I put self-proclaimed in the description. I knew that nobody would guess that, so I gave it away. An alternative is self-declared. What that means is a country unites or changes its system of government drastically to what it is today, like the United Kingdom, well, uniting. My source for that is Atlas-in-a-Box, a card game, that says Independence : Day Month Year (From Country). The self-proclaimed or self-declared countries didn't have a listed parent country.

The reason Austria-Hungary wasn't included was that the majority of the modern nation states that were once a part of Austria-Hungary were swallowed up by Yugoslavia, Czechoslovakia, or were the modern states of Austria and Hungary. The Austro-Hungarians were never the last country to own a modern nation state. Austria and Hungary themselves fall under the category of self-proclaimed.