Dodecanese Dodecanese The Dodecanese (, ; , "Dodekánisa" , literally "twelve islands") are a group of 15 larger plus 150 smaller Greek islands in the southeastern Aegean Sea, off the coast of Asia Minor (Turkey), of which 26 are inhabited. Τhis island group generally defines the eastern limit of the Sea of Crete. They belong to the wider Southern Sporades island group. The most historically important and well-known island, Rhodes, has been the area's dominant island since antiquity. Of the others, Kos and Patmos are historically the more important; the remaining eleven are Agathonisi, Astypalaia, Kalymnos, Karpathos, Kasos, Leipsoi, Leros, Nisyros,
Island of the Jewel Island of the Jewel The Island of the Jewel () or Island of Sapphires () was a semi-legendary island in medieval Arabic cartography, said to lie in the Sea of Darkness near the equator, forming the eastern limit of the inhabited world. The island does not appear in any surviving manuscript of Ptolemy's "Geography" nor other Greek geographers. Instead, it is first attested in the Ptolemaic-influenced "Book of the Description of the Earth" compiled by al-Khwārizmī around 833. Ptolemy's map ended at 180° E. of the Fortunate Isles without being able to explain what might lay on the imagined eastern