While the Trinitarian Controversy focused on the relationship of the Son of God to the Father, the growing Christological Controversy will focus on the relationship of the Son of God to humanity. The rise of the Apollinarian Heresy brings with it the next major threat to Christian unity. In the West, Ambrose becomes bishop of Milan and Valentinian goes to his heavenly reward. In the East, Basil continues to struggle against Valens.

Links:

Fr. Seraphim’s Amazon Wish List for Christmas

Coin showing Valentinian and Valens from the Classical Numismatic Group, Inc

Writings of Apollinaris of Laodicea

Joseph T. Lienhard, “Two Friends of Athanasius: Marcellus of Ancrya and Apollinaris of Laodicea”, Zeitschrift für Antikes Christentum 10, no. 1: 56-66.

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#368 – A History of the Catholic Church – Divided Empire/Divided Church