The origins of the Thracians remain obscure, in the absence of written historical records. Evidence of proto-Thracians in the prehistoric period depends on artifacts of material culture. Several Thracian graves or tombstones have the name Rufus inscribed on them, meaning "redhead" – a common name given to people with red hair.[38] Ancient Greek artwork often depicts Thracians as redheads.[39] Rhesus of Thrace, a mythological Thracian King, derived his name because of his red hair and is depicted on Greek pottery as having red hair and beard.[39] Ancient Greek writers also described the Thracians as red haired. A fragment by the Greek poet Xenophanes describes the Thracians as blue-eyed and red haired. http://en.wikipedia.org/wiki/Thracians