 In the census the counties of Meirionnydd (Merionethshire), Ynys Môn (Anglesey), Caerfyrddin (Carmarthenshire), and Caernarfon (Caernarvonshire) averaged a 75% proportion of Welsh speakers, with the most significant decreases in the counties of Glamorgan, Flint, and Pembroke.Responding to calls for Welsh devolution, in 1964 the Labour Government established the Welsh Office () and Secretary of State for Wales.In 1970, Lewis was nominated for the Nobel Prize in Literature.