Where did St. Peter preach?
Peter went on various missionary journeys, with his wife (1 Corinthians 9:5), who according to early christian writers, was also martyred in Rome. Peter began his preaching in Jerusalem, giving the first Christian sermon at Pentecost, after the falling of the Holy Spirit.He undertook a missionary journey to Lydda, Joppa and Caesarea (Acts 9:32-10:2), becoming instrumental in the decision to evangelise the Gentiles (Acts 10). He was present at the Council of Jerusalem, where Paul further argued the case for accepting Gentiles into the Christian community without circumcision. (Acts 10) He is traditionally given the honour of having founded the christian community in Antioch (Galatians 2:11; early christian writers back this) then made his way to Rome where he may have established Christianity, or at least, assisted those who had. Tradition says he was martyred for his faith (and this seems to have been the prediction by Jesus for him in John 21:18-19).