During Jesus' life all he really tried to do was to improve Jewish law but the Pharisees (Rabbis of the time) were fearful of Jesus of what he had to say, and had numerous arguments with him at the time. After the death of Jesus in around the year 30 C.E, his brother James and Peter formed the Jerusalem Church along with the other disciples who agreed with Jesus' ideas and thought. The main idea of Christianity is that Jesus is the Messiah. Still despite all this, the first disciples continued to conduct their lives in accordance with Jewish traditional practice. This was the small start of Christianity.

During 49 C.E a meeting took place between the Jerusalem Church and Paul. Astoundingly, Paul was actually Jewish and possibly he was the main reason so many people converted from Judaism to Christianity. At the meeting they wrote letters to...