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Last Updated: Monday January 19 2009 09:21 GMT

What is Christianity?

Bible and crucifix

Christianity is the world's biggest religion, with about 2.1 billion followers worldwide.

It is based on the teachings of Jesus Christ who lived in the Middle East 2,000 years ago.

Christians believe that there is only one God, whom Jesus called Father, and they believe Jesus was the Son of God.

Christians believe that there is a life after death.

Christians worship in churches, usually on Sundays and their spiritual leaders are called bishops, priests or ministers.