How did early christianity spread throughout the roman empire

During the Roman Emperor many martyrs were killed for there faith in God. By standers realized that if someone was willing to die for something because they felt so strongly about it, they were became interested in it. Martyr refers to the people who are willing to sacrifice their life for a certain cause. In the past, many Christian missionaries become a martyr by defending their religion in the face of torture and execution. As the news of their death spread, they indirectly showed the strength of their belief which ignite other people's will to adopt the religion.

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