Daoine breagha Beautiful People

 Who were the original inhabitants of Britain, whether they were indigenous or foreign, is, as usual among barbarians, little known. Their physical characteristics are various and from these conclusions may be drawn. The red hair and large limbs of the inhabitants of Caledonia point clearly to a German origin. 

- Tacitus in his Agricola, chapter XI (c. 98 AD)

This is the oldest written description of the inhabitants of Scotland.