Hungary

Greetings Leaders!

Could someone make me understand why there is such a thing as "Greater Romania" that consists Hungary eventhough through history Romania had nothing to do with Hungarian land. However Hungary in the until the beginning of the XX.century ruled Transylvania. I would like to ask the developers why isn't there just simply "Hungary" (not the original which also consisted Slovakia, Croatia and a lot of other places). In case you argue that then there would be two AI countries, I want to say that then you could just create a """Greater Hungary"""".