Antonio Usai (1957- ) was born in Assemini, 12 km northwest of Cagliari, the capital of Sardinia. Having a passion for ancient history, he has written a number of papers(a) locating the Pillars of Heracles within the Mediterranean. An English translation of The Pillars of Hercules in Aristotle’s Ecumene is now available on the excellent Academia.edu website as well as a 67-page booklet. Included in his work is a critique(b) of Sergio Frau’s book.
Usai followed a reading of Frau’s book with a study of the works of Herodotus, Aristotle, Polybius and Strabo among others. He was drawn to the story of Hanno’s voyage, where Hanno is described as leaving Carthage, turning east, then passing through the ‘Pillars’ and following the coast south towards Syrtis Minor, which is described as being on their right.>However, the previous passage tells us that he first turned west, which is all rather confusing!<
According to Usai, this would only make sense if the Pillars had been situated between the east coast of Tunisia and the islands of Kerkennah. Furthermore, Usai contends that part of Hanno’s report of his voyage was a hoax!
Finally, after devoting most of his essays to identifying the original Pillars at Kerkennah,>in my opinion he weakened his credibility when he concluded his work by identifying Greenland as the location of Atlantis, contradicting Plato’s text, in which the Pillars are described as close to Atlantis.
For some reason, Usai incorrectly describes Greenland as being surrounded by a continent. It is not; to the west is a large Canadian island, there is nothing to the north, east or south and the nearest continental territory is 500 km away to the southwest.
Additionally, he must explain why or how the few people living on Greenland would attack Athens so many thousands of kilometers away.<
A number of translations of the Periplus (Sea Voyage Guide) of Hanno are available on the internet(c)(d).
(c) https://archive.org/details/cu31924031441847 (Schoff translation)
(d) http://www.jasoncolavito.com/periplus-of-hanno.html (Colavito translation)