A fuodd Glyn Wise yn llwyddiannus yn ei ymgyrch i helpu Cymru i ennill y Grand Slam? Was Glyn Wise successful in his campaign to help Wales win the Grand Slam?
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A fuodd Glyn Wise yn llwyddiannus yn ei ymgyrch i helpu Cymru i ennill y Grand Slam? Was Glyn Wise successful in his campaign to help Wales win the Grand Slam?
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
