In 382 AD, the western Roman emperor abolished the sacrifice of the goddess of victory and worshipped Jesus alone, handing over the position of the highest priest to the 39th Bishop of the Roman Church. In 445, the Eastern Roman Emperor and the Eastern Church recognized the supremacy of their church.
In the 8th century, the pipeline provided land, and the papal state was established on this basis. After that, he became the leader of a secular country, and it was not until the Rutland Treaty was signed in the 20th century that he became a symbolic country. In addition, in the15th century, the then Bishop Nicholas V began to use the word "Romanus Pontifex" when he was engaged in diplomatic envoy activities with King Alfonso V of the Portuguese Kingdom, and wrote it into church law. Later, Portuguese businessmen and missionaries came to China to carry out bilateral activities with the Ming and Qing governments, and they were translated into the Enlightenment Emperor, which was established by convention.