Background: Procopius wrote in 545 that "the Sclaveni and the Antae actually had a single name in the remote past; for they were both called Spori in olden times." He describes their social structure and beliefs:
Question: What does Procopius describe in his writings of the Sclaveni and Antae?
Answer:<extra_id_0>.
<extra_id_0> their social structure and beliefs<extra_id_1>