Church History c. 33: First Christian Pentecost; descent of the Holy Spirit upon the disciples; preaching of St. Peter in Jerusalem; conversion, baptism and aggregation of some 3,000 persons to the first Christian community. St. Stephen, deacon, was stoned to death at Jerusalem; he is venerated as the first Christian martyr.   c. 34: St. Paul, formerly Saul the persecutor of Christians, was converted and baptized. After three years of solitude in the desert, he joined the college of the apostles; he made three major...