original_query: What is the significance of the red porphyrian man in Ravenna's earliest Christian record?
query: What is the significance of the red porphyrian man statue in the Archiepiscopal Museum of Ravenna?
answer: The headless, handless, footless red porphyrian man statue, possibly depicting Emperor Theodosius, is found in the Archiepiscopal Museum.  Its significance lies in its potential connection to the Emperor and its presence in the earliest Christian record in Ravenna, a tombstone predating the Edict of Tolerance.