Abstract:

With the start of Jesus' notification, Christianity emerged of as a Jewish revival movement, in first century, in Palestine region and over time it gained global character. The followers of Jesus has been trying to spread to Christianity throughout the Roman Empire. When Christianity spread, it has been exposed to the repression of some religious groups and the state administration from time to time. After Rome had acceptanced Christianity as the official religion, the situation has changed, but then some problems have emerged on the Christian theology. These problems were discussed in council. In this process, Christians have divided into religious groups such as Aryanists, Nestorians and Monophysites. In this way, Christianity which consists of various groups, spread rapidly to the Roman Empire, the Sassanid Empire and in the Arabian Peninsula. Indeed, in Najrān in the southwest part of the Peninsula, in which Islam emerged it was the existence intense Christian. Mohammad, in the notification process, has sent a letter of invitation to Islam to Najrān Christians. Therefore, a Christian delegation from Najrān came to Medina. Mohammad invited them to Islam, but they have to stay in their own religion. Mohammad has given letters of guarantee to Nejrān Christians for comfortable to live their religion.

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