by the Ten Thousand as they approached the city of Trebizond.
This body of water occupies the only surviving fragment of the Dura-Europos route map, which was drawn onto the leather portion of a Roman shield. A region on this body of water was home to Alexander of Abonoteichus (ah-boh-no-"TYKE"-us), the prophet of a cult believing that Asclepius was reborn as the snake god Glycon. Arrian of Nicomedia wrote a periplus of this body of water, which was known as the Euxine (YOOK-seen) Sea in antiquity. Paphlagonia and Bithynia (bih-THIH-nee-ah) were regions on this sea. In Xenophon's Anabasis, this sea is greeted with the cry "thalatta! thalatta!" by the Ten Thousand as they approached the city of Trebizond. On the southern coast of this sea, a number of kings named Mithridates (mih-thrih-DAH-tees) ruled a region called Pontus. For 10 points, what sea borders the historical regions of Colchis and Crimea?
This body of water occupies the only surviving fragment of the Dura-Europos route map, which was drawn onto the leather portion of a Roman shield.
Black Sea [accept Euxine Sea before "Euxine"; accept Black Sea a⢄er "sea"; prompt on "Black" before "sea"]