http://www.diffen.com/difference/Christianity_vs_Islam

Christianity and Islam have more in common than most people know — they are both monotheistic Abrahamic religions, and Jesus Christ is an important, revered figure in both religions. 

Christians  believe in the Holy Trinity, and that Christ, the son of God, walked the earth as the incarnate form of God ("the Father"). Most Christians also believe Christ will return at the end of the world. 

Muslims consider Jesus Christ to be a prophet — a messenger of God — and a messiah. However, they believe that Muhammad was the last prophet and he recorded the word of God verbatim in the Quran.
Now all Christians are KKK or Neo-nazi members. Not all Muslims are terrorists. Most Americans terrorists wear their religion on their body as tattoos. Do not judge both religions by the actions of a few  radicals. 
Islam started in China 1,400 years ago. 
Christian violence includes "forms of systemic violence such as poverty, racism, and sexism