Saint Cyprian of Carthage was a prominent early Christian bishop and martyr, born around 200 AD in North Africa. He became the Bishop of Carthage around 248 AD and was known for his writings on church unity and the role of bishops. His most famous work, "On the Unity of the Church," emphasized the importance of maintaining a unified Christian community. Cyprian faced significant challenges during the Roman Empire's persecution of Christians, particularly under Emperor Decius. He was eventually arrested and executed around 258 AD. His feast day is celebrated on September 16, and he is recognized as a saint in both the Catholic Church and the Eastern Orthodox Church.