Basil, St Cappadocian monk, known as `the Great', founder of the Basilian monks. Elected bishop of Caesarea 370, Basil opposed the heresy of Arianism. He wrote many theological works and composed the `Liturgy of St Basil', in use in the Eastern Orthodox Church. Feast day 2 Jan. Born in Caesarea, Anatolia, he studied in Constantinople and Athens, and visited the hermit saints of the Egyptian desert; he entered a monastery in Anatolia about 358, and developed a monastic rule based on community life, work, and prayer. These ideas form the basis of monasticism in the Greek Orthodox church, and influenced the foundation of similar monasteries by St Benedict.