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").
Rûm Eyalet Eyalet of Rûm (Ottoman Turkish: ایالت روم; Eyālet-i Rūm‎ ; originally Arabic for Eastern Roman Empire), later named as the Eyalet of Sivas (Ottoman Turkish: ایالت سیواس; Eyālet-i Sīvās‎ ), was an Ottoman eyalet in northern Anatolia, founded following Bayezid I's conquest of the area in the 1390s. The capital was the city of Amasya, which was then moved to Tokat and later to Sivas. Its reported area in the 19th century was 28912 sqmi .