What is "sclaveni"

The Sclaveni (in Latin) or Sklavenoi (in Greek) were early South Slavic tribes that raided, invaded and settled the Balkans in the Early Middle Ages. They were mentioned by early Byzantine chroniclers as barbarians having appeared at the Byzantine borders along with the Antes, another Slavic group. The Sclaveni were differentiated from the Antes (East Slavs) and Wends (West Slavs), however, described as kin. Eventually, most South Slavic tribes accepted Byzantine suzerainty, and came under Byzantine cultural influence. The term, along with the term Sklavinia ("Slav land") was widely used until the emergance of separate tribal names by the 10th century.