Final answer:
Around 312, Emperor Constantine made Christianity acceptable in the Roman Empire, changing its status and relationship to the state with the Edict of Milan in 313. These actions were significant in Christianity’s rise to prominence.
Step-by-step explanation:
Around this year, Emperor Constantine made Christianity an acceptable religion within the Roman Empire. Following his victory at the Battle of Milvian Bridge, Constantine attributed this triumph to the Christian God. The subsequent enactment of the Edict of Milan in 313 established religious toleration, putting an end to the state-sponsored persecution of Christians. Christianity had not yet become the official religion of Rome, a transformation that happened at the end of the fourth century. However, with Constantine’s support, it began to adopt an increasingly privileged position—growing in numbers, wealth, and political influence.
The events during Constantine's reign were pivotal; they included ending Christian persecution, the Edict of Milan promoting religious freedom, and eventually, the relocation of Rome's capital to Byzantium, later known as Constantinople. These developments shaped the future of both the Roman Empire and Christianity itself, guiding it towards becoming the dominant religion and deeply integrating with the structure of imperial power.