What was the name of the area in the highlands of central Anatolia ruled by Deiotarus?
Galatia Ancient Galatia ( ; Greek: Γαλατία , Turkish: "Galatlar" ) was an area in the highlands of central Anatolia (Ankara, Çorum, Yozgat Province) in modern Turkey. Galatia was named for the immigrant Gauls from Thrace (cf. Tylis), who settled here and became its ruling caste in the 3rd century BC, following the Gallic invasion of the Balkans in 279 BC. It has been called the "Gallia" of the East, Roman writers calling its inhabitants "Galli" ("Gauls" or "Celts").
Caucones The Caucones (Greek: Καύκωνες , "Kaukones") were an autochthonous tribe of Anatolia (modern-day Turkey) whose migrations brought them to the western Greek mainland in Arkadia, Triphylian Pylos, and north into Elis. Their etymology suggests strong affinities with the Caucasos Mountains originally. Russian KAVKAZ for Caucasus is attached to the two mountain ranges that serve as a ‘spine’ or backbone between the northern and southern regions dividing Europe from Asia. Kaz-Kaz people known from the written Hittite tablets, indeed, lived along the southern shore of the Black Sea, exactly where the Homeric "Iliad" placed the Kaukônes.1 According to Herodotus and other classical writers, they were displaced or absorbed by the immigrant Bithynians, who were a group of clans from Thrace that spoke an Indo-European language. Thracian Bithynians also expelled or subdued the Mysians, and some minor tribes, the Mariandyni alone maintaining themselves in cultural independence, in the northeast of what became Bithynia. Strabo (12.3.3) acknowledges that in earlier times Bithynians were called Mysians who, in turn, Herodotus (7.20, 75) says alongside Teucrians were invaders of northern Greece (Thessaly) before the Trojan War.