Basil of Caesarea
330 — 379 · Feast day: January 1
Basil of Caesarea (330–379), known as Basil the Great, was Bishop of Caesarea and one of the three Cappadocian Fathers whose writings anchored Nicene Trinitarian theology against Arianism. He established the monastic rules that became the foundation of Eastern communal monasticism, and built the Basiliad outside Caesarea — the ancient world's first large-scale charitable complex, combining hospital, hospice, and poorhouse.