The Republic of Macedonia -> The Republic of North Macedonia
Big change, right? This change occurred in 2019 solely so that they could become a part of NATO. Their neighbouring country, Greece, also has a region known as Macedonia, so the “North” was added to avoid any potential mix-ups. Despite the name change, inhabitants will still be known as Macedonians and the official language will remain as Macedonian.
https://en.wikipedia.org/wiki/Netherlands
#1 also in Germany we still call it "Holland", this name was never really taken away from them.
#4 well, the more important thing that happened was 1993 when Czechoslovakia separated into Czechia and Slovakia.
Too many times, incorrect names are applied to places for the sake of a foreigner's convenience. eg Munich and Cologne are not the names of the places.....