Bansko is a town in southwestern Bulgaria, located at the foot of the Pirin Mountains at an elevation of 1200m above sea level. It is a popular ski resort.
The archeological traces of the inhabitants of Bansko and the Razlog Valley in general date to the early periods of the Roman Empire. There are several housing structures at the outskirts of the town, which date to 100 BC. However, there is no consensus nor credible theory on who these people were.
Bansko, then part of the Byzantine (Eastern Roman) Empire was added to Bulgaria during the reign of Khan Krum, most probably around 811 AD, and passed back and forth between Byzantines and Bulgarians for the next few centuries, before control fell to the Ottomans in the 14th century.