Europe does not have, and has never had a capital. It is a continent, not a country.
The capital of independent Bangladesh never changed. It was always Dhaka.
It never did, because Brussels is not a country, but the capital of Belgium, one of the 3 members of the Benelux, the earliest form of a European Union.
London. (It never changed).
Norwich has never been the capital of England. It was a regional capital under the Romans, but never the capital of the whole country.
No country has never changed. The science "anthropology"is founded on the premis that all socities are in a state of continuous change.
Oviedo was never the capital of the entire country of Spain. It was once the capital of the Kingdom of Asturias.
Thailand
Afghanistan
Turkish Republic has only one capital city, and its Ankara, never been changed, and never going to change.
Belgium is a country to the west of Germany and has never been the capital of Germany.
Lichtenstien