History. The FACT of Peter founding the Church of Antioch is well-documented in the historical record, including records from the first century AD. But, as I said, because "...it's not in the Bible...", you'll simply blow off the evidence (which, to me, is rampant intellectual dishonesty).
There are other sources of truth than the Bible, buddy.
“The FACT of Peter founding the Church of Antioch is well-documented in the historical record, including records from the first century AD.”
Gee, I see opinion but no historical facts. I gave you accepted history by one who was a contemporary of the founders, “(Acts 11:19-26) “men of Cyprus and Cyrene”, and Barnabas and Saul, but I don’t see Peter mentioned”.
Once again, where do you find Peter founding the church at Antioch?