entity_id,period_id,confidence,rationale,source_id,review_status
ENT_SLAV_PERUN,PER_SLAV_PAGAN,high,"Attested in Byzantine-Rus treaty AD 945, 971 (PVL); Kiev Pantheon AD 980. Earliest explicit attestation of any Slavic deity.",SRC_PRIMARY_CHRONICLE_PVL,reviewed