Just wondering if there was an official time, historically speaking, where it is said that he became bishop of Rome? I ask because the passage in Galatians 2 suggests it must have been somewhere beyond 17yrs after Pentecost (3 yrs to Paul’s visit to Peter in Gal 1:18 and 14yrs to the council Gal 2:1) since Peter, while in a position of leadership, is rebuked by Paul for teachings and his example of being, in some respect, a judaizer. It just seems more traditional to think it was around Pentecost that his position was affirmed by the giving of the Spirit in fuller measure on that day. However, this seems to question that on account of papal infallibility. Also, Peter wasn’t in Rome either since the council was in Jerusalem. So, I guess, though the leader in many respects, he wasn’t yet pope? I asked the question elsewhere and was referred here as the best place to get a better answer.