WORLD HISTORY

Detailed explanation-1: -Christianity itself also spread through the Roman Empire; since emperor Theodosius I (AD 379–395), the official state church of the Roman Empire was Christianity.

Detailed explanation-2: -The Roman Empire was primarily a polytheistic civilization, which meant that people recognized and worshiped multiple gods and goddess. The main god and goddesses in Roman culture were Jupiter, Juno, and Minerva.

Detailed explanation-3: -In 313 AD, the Emperor Constantine issued the Edict of Milan, which accepted Christianity: 10 years later, it had become the official religion of the Roman Empire.

Detailed explanation-4: -Its spread was greatly aided by the empire’s political unification and extensive road system, as well as the belief among many Christians that the religion was something anyone could adopt, regardless of regional or religious background.