King Mirian I was a significant ruler of the ancient kingdom of Iberia, located in present-day Georgia. He reigned during the 4th century AD and is best known for his role in the Christianization of the region. Under his leadership, Iberia became one of the first kingdoms to adopt Christianity as the state religion. Mirian I is often credited with establishing the Georgian Orthodox Church and promoting the spread of Christianity throughout his kingdom. His efforts laid the foundation for the religious and cultural identity of Georgia, influencing its history for centuries to come.