Christianity developed in Judea in the mid-first century CE, based first on the teachings of Jesus and later on the writings and missionary work of Paul of Tarsus. Originally, Christianity was a small, unorganized sect that promised personal salvation after death.
During the Roman Empire, Jesus of Nazareth began preaching a message of love and forgiveness. His life and teachings led to the rise of Christianity. This religion had a great influence on the Roman Empire and on people throughout the world.