He later moved to Ireland where he wrote books on etymology and ancient astronaut themes.
[3] In the book he claimed that the original blood stock in England, Ireland, Scotland, and Wales is Semitic.
[4] Cohane also published The Key: A Startling Enquiry into the Riddle of Mans Past, which claimed that before Egyptian, Greek, Phoenician and Carthaginian eras two major worldwide Semitic migrations took place from the Mediterranean and scattered across the earth.
[11] Cohane's controversial ideas were rejected by professional archaeologists and historians as "fantasy" and "pseudoscience".
[5][12] Archaeologist Phil C. Weigand described The Key as a "fantasy masked as science" and suggested that the linguistic analysis is "methodologically unsound to be ever seriously considered.