Holland -> The Netherlands
2 regions of Holland, which had up until recently been known as “North Holland” and “South Holland” have, since January 2020, now become part of what is known collectively as “The Netherlands”, which consists of 12 provinces.
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.....