Pillars of Hercules

According to Greek mythology adopted by the Etruscans and Romans, when Hercules had to perform twelve labours, one of them (the tenth) was to fetch the Cattle of Geryon of the far West and bring them to Eurystheus; this marked the westward extent of his travels. A lost passage of Pindar quoted by Strabo was the earliest traceable reference in this context: "the pillars which Pindar calls the 'gates of Gades' when he asserts that they are the farthermost limits reached by Heracles". Since there has been a one-to-one association between Heracles and Melqart since Herodotus, the "Pillars of Melqart" in the temple near Gades/Gádeira (modern Cádiz) have sometimes been considered to be the true…

Syriac scholars were aware of the Pillars through their efforts to translate Greek scientific works into their language as well as into Arabic. The Syriac compendium of knowledge known as Ktaba d'ellat koll 'ellan (Cause of All Causes) is unusual in asserting that there were three, not two, columns.