The Thracians (Bulgarian: Траки, Ancient Greek: Θρᾷκες, Latin: Thraci) were a group of Indo-European tribes inhabiting a large area in Central and Southeastern Europe, centred in modern Bulgaria.
[2] They were bordered by the Scythians to the north, the Celts and the Illyrians to the west, the Greeks to the south, and the Black Sea to the east.
They made beautifully ornate golden and silver objects such as various kinds of vessels, rhytons, facial masks, pectorals, jewelry, weapons, etc.
They used to bury rich hoards of precious objects both to hide them in times of enemy invasions and unrest as well as for ritual purposes.
Refer to the map which explicitly shows the territory of present-day Bulgaria.