Sorry... oldest language in Europe?
Ok I cannot say I totally gree with that, no doubt old, but it is impossible to date when Welsh became distinct from the other languages of Brythonic descent, and still further when those became distinct from the Celtic languages and again from the Indo-Eurpoean laguage. And as for literary Welsh, the oldest attested documents in Welsh are not quite as old as those found in Irish.
Wi'n dysgu Cymraeg. I'm still learning Welsh, it is an amazing language that is a joy to speak so I'm going to get this book to help with my learning.