"Jim C, the English call it the English Channel- the French call it La Manche."
By the French - the English tend not to foul their mouths with foreign-speak
The Irish Sea is also referred to as the Celtic Sea, of course

It doesn't matter, of course - I rased the question because I felt that visitors should be forewarned of the prevailing 'Little England-ism' on the rise at present
I think that's about enough, don't you ?
Jim