Symbol. See [“Creed.”]

Symmachus of Rome, [530].

Symmachus, prefect of Rome, [339-342].

Synods. See [“Council”] and under place-name.

Syria, Christianity in, [54].

Syzygies, Gnostic doctrine of, [90], [94].

Tabenna, first cloister, [402].

Tacitus on Christians, [6].

Tatian, [106] f.

Telemachus, monk, [389].