Question: When did Procopius write that "the Sclaveni and the Antae actually had a single name in the remote past; for they were both called Spori in olden times."?
Sentence: 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."
Answer in sentence: yes