How did Constantine I help Christianity grow in Rome?

Constantine I played a pivotal role in the growth of Christianity by transitioning the religion from a persecuted minority status to a protected and influential institution within the Roman Empire.1

His contributions included:

• Legal Recognition: In 313, Constantine co-authored the Edict of Milan, which ended systematic imperial persecution, granted Christians legal rights, and allowed for the organization of churches.12
• Imperial Patronage: He funded major church-building projects, including the original St. Peter’s Basilica and the Basilica of St. John Lateran in Rome.12
• Privileges and Governance: Constantine granted the clergy fiscal and legal immunities and became deeply involved in ecclesiastical affairs, most notably by convening the First Council of Nicaea in 325 to resolve theological disputes.12
• Resource Support: He further supported the faith by commissioning new copies of the Bible.2

Through these actions, Constantine established a precedent for cooperation between imperial authority and Christian institutions, setting the stage for Christianity to eventually become the empire's official religion.12