Pantelleria, formerly known as Cossyra, is an Italian controlled island between Sicily and Tunisia. One suggestion, from Andis Kaulins has been that it was the original Gaderia^(a).

More recently, some authors have identified the Straits of Sicily as being the location of the Pillars of Heracles referred to by Plato in his tale of Atlantis. A land bridge between Sicily and Tunisia, including Pantelleria, has been suggested.

A fortified Neolithic village has been unearthed on its west coast and ancient structures, known as ‘sesi’, similar to the nuraghi of Sardinia, are to be seen in the southeast. In 2005, jewellery in the style of the Egyptian Second Intermediate Period  (1700-1550 BC) was discovered on the island. This would add to the opinion that Pantelleria was a major trading and cultural crossroads in ancient times.

^(a) http://www.lexiline.com/lexiline/lexi60.htm