Diodorus Siculus declares that the ancient Phoenicians and Etruscans knew of an enormous island outside the Pillars of Heracles.

• 西西里的狄奥多罗斯断言古代腓尼基人和伊特鲁里亚人知道海格勒斯（大力神）的柱子外面的巨大岛屿。