Research in Glasinac began in 1880 after the chance discovery of a burial mound of an Iron Age priest. The discovery signified the beginning of organized archaeological research in the region. From 1888 to 1897, a total of 1,234 mounds were excavated. They contained 1,000 tumuli with 3,000 to 5,000 finds in total. The first catalogues of the finds in Glasinac were produced in 1956-57 by archaeologists
Alojz Benac and
Borivoj Čović. In 1981, a revised catalogue which included an additional 192 graves from the Iron Age was produced by archaeologist Nora Lucentini. In total, 352 graves have been analyzed and subsequently catalogued. They represent 7%-12% of excavated finds in the graves of the Glasinac type site area. The Mat and lower
Fan river valleys in the area of the
Zadrima plain developed tumuli sites which contained graves of a warrior class whose material culture matched that of Glasinac. These burial sites typically included many weapons and armor. They remained in use until the 4th century BCE when new burial practices emerged. In central Albania, the Glasinac-Mat culture is represented in the tumuli of Pazhok which appeared in the Late Bronze Age (c. 1300 BCE). Further to the south are the Late Bronze Age tumuli of Barç and the closely related early burials of Kuç and Zi, near present-day
Korçë, which represent the southernmost extension of the Glasinac-Mati culture. The 9th-8th century fortifications of Symizë, Bellovodë, Bilisht, and Tren near the
Small Prespa Lake, could also be related to them. The Drin river valley to the north-east of Mat around
Kukës and to the east up to present-day
Debar is marked by burial sites which appear in the Late Bronze Age and are closely linked to the Mat valley sites. These sites in turn are related to the sites which developed in western Kosovo around the
Prizren area such as the site of
Romajë. == Culture ==