Hittite language
Waddell in "Phoenician Origin of Britons, Scots, and Anglo-Saxons" (1924) argued for a Syro-Hittite and Phoenician colonization of the British Isles, turning to British folklore that mentions Trojans, such as the "Brutus Stone" in Totnes and Geoffrey of Monmouth; place-names that supposedly preserve the Hittite language, and inscriptions, as evidence.