Greek–Turkish relations January 1822, and after the Battle of Navarino in 1827, the establishment of a Greek state was recognized in the London Protocol of 1828. The first borders of the Greek state consisted of the Greek mainland south of a line from Arta to Volos plus Euboea and the Cyclades islands in the Aegean Sea. The rest of the Greek-speaking lands, including Crete, Cyprus and the rest of the Aegean islands, Epirus, Thessaly, Macedonia and Thrace, remained under Ottoman rule. More than a million Greeks also lived in what is now Turkey, mainly in the Aegean region of Asia Minor, especially
Transjordan (region) and Eber-Nari. The Decapolis is named from its ten cities enumerated by Pliny the Elder. It should be noted, that what Pliny calls "Decapolis", Ptolemy calls "Cœle-Syria". Ptolemy does not use the term "Transjordan", but rather the periphrasis "across the Jordan". And he enumerates the cities; Cosmas, Libias, Callirhoe, Gazorus, Epicaeros—as being in this district—east of the Jordan, that Josephus et al. called Perea. Jerash was a prominent central community for the surrounding region during the Neolithic period and was also inhabited during the Bronze Age. Ancient Greek inscriptions from the city, and the literary works of Iamblichus and the