WORLD RELIGIONS

Detailed explanation-1: -After this vision, Constantine legalized Christianity and promoted religious tolerance in 313 CE through the Edict of Milan.

Detailed explanation-2: -In 313 CE, the emperor Constantine issued the Edict of Milan, which granted Christianity-as well as most other religions-legal status.

Detailed explanation-3: -It is possible (but not certain) that Constantine’s mother, Helena, exposed him to Christianity. In any case, he only declared himself a Christian after issuing the Edict of Milan. Writing to Christians, Constantine made clear that he believed that he owed his successes to the protection of the High God alone.