The article provides a brief overview of the antiquities of the 5th–10th centuries CE, which were attributed to the early medieval Slavic tribes, focusing especially on the 5th–7th centuries CE, the period of the Great Migration of the Slavs, and the time of the historical mentions of the Sclaveni (Sklavenoi, Sklavinoi) and the Antes (Antae, Antai, Anti), when they appeared on the Danube during the first contacts of the Slavs with the Eastern Roman Empire. Owing to t…