Do you believe that jesus christ founded a new religion?

if you don't believe in that? why do you believe in the baptism in the name of Jesus or the name of the Father, the Son and the Holy Spirit? according to the history christianity started as a jewish sect, the followers were called christians by pagans, next the catholic church appears, after appear the coptic church, the roman catholic, orthodox churches, then the roman catholicism against another schism and this case the people were called protestants and one of the first churches were the lutherans after many denominations and today we have many protestant churches in the world why? did Jesus christ founded a new religion? and his churches are splitting today in many churches why?