It depends, if you count "Cymru" as when the Celts moved over here and set up a nation, as Cambria as the Roman state, or Wales as it is now formed in the Late Middle Ages.
Jimmy Wales is famous because he founded Wikipedia.
The South Wales Evening Post was founded in 1893 with the name South Wales Daily Post. Its name changed in 1932 from the South Wales Daily Post to its current name.
Jimmy Wales and Larry Sanger founded Wikipedia.
Jimmy Wales founded Wikipedia.
Wikipedia is a project by Wikimedia Foundation and founded by Jimmy Wales and Larry Sanger.
abergavenny bowls club first bowls club to be founded in wales in 1860
Julian Hodge Bank is and independent bank that was founded in 1987, in Cardiff, Wales. Julian Hodge is still the only bank with it's headquarters in Wales.
1941 by Kurt Hahn; In Aberdovey, Wales
Wikipedia was founded by Jimmy Wales and Larry Sanger in January 2001.
CAFOD, also known as the Catholic Agency For Overseas Development, was founded in 1962 by the Catholic Church in England and Wales.
Wikipedia
Australian colonies, particularly New South Wales.