This document provides background information on Christianity, including key beliefs, writings, worship practices, religious leaders, ceremonies, symbols, and festivals. It discusses that Christians believe in one God manifested in three forms - God the Father, Jesus Christ his son, and the Holy Spirit. Jesus is believed to have been born to Mary, performed miracles, and was crucified and resurrected, offering salvation. The Bible contains the Old and New Testaments and guides Christians. Worship occurs in churches through practices like prayer, communion, and observing festivals like Christmas and Easter.