Christianity is based on the teachings of Jesus Christ and has over 2 billion followers worldwide. The document provides an overview of key aspects of Christianity including its sacred scriptures (the Bible), core beliefs and doctrines such as the Ten Commandments, major divisions and religious leaders, important symbols, and the historical foundations and spread of the religion since Jesus. Christianity began in Palestine around 100 CE and is now divided into Catholicism, Orthodox Christianity, and Protestantism.