Thrace is a historical and geographic area in southeast Europe, centered on the modern borders of Bulgaria, Greece, and Turkey. As a geographical concept, Thrace designates a region bounded by the Balkan Mountains on the north, Rhodope Mountains and the Aegean Sea on the south, and by the Black Sea and the Sea of Marmara on the east. The areas it comprises are southeastern Bulgaria (Northern Thrace), northeastern Greece (Western Thrace), and the European part of Turkey (Eastern Thrace). The biggest part of Thrace is part of present-day Bulgaria. In Turkey, it is also called Rumelia.
The name comes from the Thracians, an ancient Indo-European people inhabiting Southeastern Europe.
Divided into separate tribes, the Thracians did not manage to form a lasting political organization until the Odrysian state was founded in the 4th century BC. Like Illyrians, Thracian tribes of the mountainous regions fostered a locally ruled warrior tradition, while the tribes based in the plains were purportedly more peaceable. A large part of the region was at times controlled by the Persian Empire at its greatest extent, and Thracian soldiers were known to be used in the Persian armies. Later on, Thracian troops were known to accompany neighboring ruler Alexander the Great when he crossed the Hellespont which abuts Thrace, and took on the Persian Empire itself.
Islands off Thrace, Thasos. Circa 500-450BC. AR Stater. 22mm, 8.65gr. Obv: Nude ithyphallic Satyr, with long beard and long hair, moving right in the archaic 'running-kneeling' position, holding a nymph in his arms, who raises her right hand in protest and wears a bracelet, and thin robes. Rev. Quadripartite incuse square of windmill form. Le Rider, Thasiennes 5; SNG Copenhagen 1010-1. NGC Ch. XF 5/5, 4/5.
KINGDOM OF THRACE. KING LYSIMACHUS ( LYSIMACHOS ), 305-281 BC. AR Tetradrachm, 29mm, 16.98gr., a lifetime emission from Pergamon, ca. 287-282 BC. Obv. Head of deified Alexander the Great right, with the horn of Amon, dotted border around. Rev. Athena enthroned left, holding a Nike crowning Lysimachus' name, lion head device on shield, crescent in outer left field, cult figure in left field, E monogram in exergue. Thompson 218. Gold iridescent highlights on both sides. NGC Ch. XF★ 5/5, 4/5, Fine Style.