When was Catholic church established in Rome?

Answer 1

Roman Catholic AnswerSt. Peter and St. Paul established the Church in Rome, and they are both buried there, so it was in the first century; St. Peter is buried underneath the high altar in St. Peter's Basilica, you can see his tomb if you visit there; St. Paul is buried in St. Paul Outside the Walls in Rome.

Answer 2

Well dear friend. The Catholic Church never had a specific date that had said this was when the church was built. But When Christ handed the keys to Peter he said "On this Rock you shall build my church".

Answer 3

St. Peter the apostle preached and was martyred in Rome. He was the first bishop of Rome and, therefore, the first Pope.

http://www.catholic.com/library/Was_Peter_in_Rome.asp