Galwegian Gaelic
George Buchanan, himself a Gaelic speaker, writing in 1575, reported that Gaelic was still spoken in Galloway. In the middle of the century, 1563–1566, an anonymous English military investigator reported that the people of Carrick "for the most part specke erishe".
Wales
In his 1707 work "Archaeologia Britannica" Edward Lhuyd, keeper of the Ashmolean Museum, noted the similarity between the two Celtic language families: Brythonic or P–Celtic (Breton, Cornish and Welsh); and Goidelic or Q–Celtic (Irish, Manx and Scottish Gaelic). He argued that the Brythonic languages originated in Gaul (France) and that the Goidelic languages originated in the Iberian Peninsula. Lhuyd concluded that as the languages had been of Celtic origin, the people who spoke those languages were Celts. (According to a more recent hypothesis, also widely embraced today, Goidelic and Brythonic languages, collectively known as Insular Celtic languages, evolved together for some time separately from Continental Celtic languages such as Gaulish and Celtiberian.) From the 18th century, the peoples of Brittany, Cornwall, Ireland, Isle of Man, Scotland and Wales were known increasingly as Celts, and they are regarded as the modern Celtic nations today.