In which century did the Kingdom of Axum convert to Christianity?
4th century.
In the fourth century CE, the Kingdom of Aksum underwent a Christian conversion. King Ezana, who established Christianity as the official religion in the 330s CE, is credited with bringing about the conversion.
Several distinct explanations exist about how Christianity arrived in Aksum. According to one theory, it was brought by Roman Empire traders. Another hypothesis is that missionaries from Egypt brought it. It's also likely that a mix of these circumstances led to the arrival of Christianity in Aksum.
Whatever the circumstances, the kingdom's history underwent a significant shift when King Ezana became a Christian. It resulted in the creation of an exceptional and thriving Christian culture in Ethiopia, which is still flourishing today.