Christianity came to being with Jesus Christ. Jesus Christ himself was a Jew, a believer in the God of the Holy Bible. The Christians were his followers. Some Jews, however, did not believe in his teachings, did not believe that he was the savior. That’s why Jesus’ followers became known as Christians, and the Jews (practicers of Judaism) were those who did not believe that he was the son of God. Christians follow the Ten Commandments. They believe in the Trinity (Father, Son, Holy Spirit) which is one God but made of three parts. Baptism is required to wash past sins away, and repentance is necessary for forgiveness and the admittance to heaven.
Found at What Religion Suits You.