John Roberts a'i westeion yn nodi 500 mlynedd ers 95 Datganiad Martin Luther. John Roberts and guests mark 500 years since Martin Luther's 95 Theses. Show more
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John Roberts a'i westeion yn nodi 500 mlynedd ers 95 Datganiad Martin Luther. John Roberts and guests mark 500 years since Martin Luther's 95 Theses. Show more
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
