Explain How Christian Church Rise in Ancient and Medieval Europe

The founders of the modern religion of Christianity were Jesus's apostles, whom he instructed to build a religion based on his teachings. The foremost of these disciples, Peter, became responsible for spreading the new religion, Christianity, in the capital of the Empire, the city of Rome.

During the centuries after Christ's death, as the new religion spread and won converts, the leaders considered themselves successors to the apostles and called themselves bishops, taking responsibility to preserve the purity of the new religion's beliefs, or dogma.

When the Emperor Constantine converted to this new religion and it became the official religion of the Roman Empire, these leaders organized themselves into the structure of the Empire's government. Seperate territories were ruled as provinces, which the Church called diocese, each having a capital with a cathedral to oversee activity in local parishes. Within these parishes, priests supervised the religion's adherents in their prayer and in their governance of the local church.