Christianity is based upon the teachings and miracles of Jesus. Jesus is the Christ. The word "Christ" means anointed one.  Christ is not Jesus' last name.  Jesus is the anointed one from God the Father who came to this world, fulfilled the Old Testament laws and prophecies, died on the cross, and rose from the dead physically. He performed many miracles which were recorded in the Gospels by the eyewitnesses.  He is divine in nature as well as human.  Thus, He has two natures and is worthy of worship and prayer.

Where all other religions in the world teach that we must do some sort of good in cooperation with God in order to achieve the right to be in God's presence, Christianity teaches salvation is by grace.  This means that we are not made right before God by our efforts, sincerity, or works.  Instead, we are made right before God by faith in what Christ did on the cross.