Acacian refers to a follower of the teachings of Acacius, a prominent theologian in the early Christian church. He is best known for his role in the Monophysite controversy, which debated the nature of Christ. Acacians supported the idea that Christ had a single divine nature, rather than two distinct natures, which was a central issue in early Christian theology. The term "Acacian" is also associated with the Acacian Schism, a significant division within the church during the 5th century. This schism arose from political and theological disputes, particularly between the Eastern Orthodox and Monophysite factions. The Acacian position sought to reconcile these differences, but ultimately contributed to ongoing tensions within Christianity.