Accurate Account on how did Christianity Began?

What is the historical and scientifically accurate account on how did Christianity begin and who started it? Most would say Christianity started with the claimed individual now called Jesus. I would say is we simply say there could have been such a man and I am not confirming there was an actual Jesus as stated in the new testament but what is sure is he was no Christian as we think of it to day. What so call earliest historical Christianity started as the Jewish Jesus movement or stated differently it could be called the rabbi Jesus Jewish movement. So the question is about partings of how Jesus Judaism became separated to just Christianity separated from Judaism. Today the concept of “Jewish Christians” may sound like a confusion of two religions. However, to understand the origin of Christianity, one must begin with the population of Jewish Christians who lived during Jesus’ lifetime, assuming for the moment such a man existed. This does not mean I am sure even some human person now thought of as jesus ever existed. The origin of Christianity are to be understood by examining the characteristics of the Jewish Jesus movement to see how it developed into a distinctly gentile religion. In the New Testament, Jesus only preaches to a Jewish audience. After the crucifixion, we can surmise the apostles began to champion a new faith in Jesus and the ranks of the Jesus movement (known as “the Way” at the time) swelled to 3,000 Jewish converts. At first, these followers were distinctly Jewish, following Mosaic law, Temple traditions and dietary customs. With them the...