Why did Christianity spready so rapidly throuhout the Roman Empire and eventually become the official Roman state religion?

(1) the promise of salvation and eternal life for everyone was an attractive alternative to Roman religions; (2) stories of miracles and healings purportedly showed that the one Christian God was more powerful than the many Roman gods; (3) Christianity began as a grassroots movement providing hope of a better future in the next life for the lower classes; (4) Christianity took worshipers away from other religions since converts were expected to give up the worship of other gods, unusual in antiquity where worship of many gods was common; (5) in the Roman world, converting one person often meant converting the whole household—if the head of the household was converted, he decided the religion of his wife, children and slaves

Explanation:

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