The existence of the Welsh-language can come as a surprise to those who assume that English is the foundation language of Britain. However, J. R. R. Tolkien described Welsh as the ‘senior language of the men of Britain’. Visitors from outside Wales may be intrigued by the existence of Welsh and will want to find out how a language which has, for at least fifteen hundred years, been the closest neighbour of English, enjoys such vibrancy, bearing in mind that English has obliterated languages thousands of miles from the coasts of England.