Mediterranean Sea million years ago (mya) in less than two years by the Zanclean flood. Water poured in from the Atlantic Ocean through a newly breached gateway now called the Strait of Gibraltar at an estimated rate of about three orders of magnitude (one thousand times) larger than the current flow of the Amazon River. The Mediterranean Sea has an average depth of and the deepest recorded point is in the Calypso Deep in the Ionian Sea. The coastline extends for . A shallow submarine ridge (the Strait of Sicily) between the island of Sicily and the coast of Tunisia divides the
Periplus of the Erythraean Sea never went this far south. This account of a kingdom tracing its beginnings to Alexander's campaigns and the Hellenistic Seleucid empire that followed: The "Periplus" further claims to the circulation of Indo-Greek coinage in the region: The Greek city of Alexandria Bucephalous on the Jhelum River is mentioned in the "Periplus", as well as in the Roman Peutinger Table: Periplus of the Erythraean Sea The Periplus of the Erythraean Sea or Periplus of the Red Sea (, ) is a Greco-Roman periplus written in Koine Greek that describes navigation and trading opportunities from Roman Egyptian ports like Berenice Troglodytica along