“GREAT Britain”
There is no such country as Great Britain, it is the name of an Island. Much the same as Honshu being a component of Japan, or Java being Indonesia.
I guess I knew that there was "no such country as GREAT Britain" but was simply referring to that which the former once great "British Empire" became known as collectively.
The country is, of course, England, which is also known and written and spoken about by the learned (including them) as "Great Britian," so please excuse me ....... and have a nice day.