Shortly after the death of Jesus ( Nisan 14 or 15 ) , the Jerusalem church was founded as the first Christian church with about 120 Jews and Jewish Proselytes ( Acts 1:15 ) , followed by Pentecost ( Sivan 6 ) , the Ananias and Sapphira incident , Pharisee Gamaliel 's defense of the Apostles ( 5:34 -39 ) , the stoning of Saint Stephen ( see also Persecution of Christians ) and the subsequent dispersion of the Apostles ( 7:54 -8:8 , also Mark 16:20 ) which led to the baptism of Simon Magus in Samaria ( 8:9 -24 ) , and also an Ethiopian eunuch ( 8:26 -40 ) .
See also : Acts of the Apostles and Paul of Tarsus Shortly after the Crucifixion of Jesus ( Nisan 14 or 15 ) , the Jerusalem church was founded as the first Christian church with about 120 Jews and Jewish proselytes ( Acts 1:15 ) , followed by Pentecost , the Ananias and Sapphira incident , Pharisee Gamaliel 's defense of the Apostles ( 5:34 -39 ) , the stoning of Saint Stephen ( see also Persecution of Christians ) and the subsequent dispersal of the church ( 7:54 -8:8 ) which led to the baptism of Simon Magus in Samaria ( 8:9 -24 ) , and also an Ethiopian eunuch ( 8:26 -40 ) .