Subcategories - Theology, Theologians
- Theoleptus of Philadelphia
- Third Buddhist Council Convenes
- Thomas à Kempis
- Thomas Aquinas Compiles the Summa Theologiae
- Tipitaka Is Compiled
- Ulfilas
- Valentinus
- Vardhamāna
- Vasubandhu
- William Ellery Channing
- William of Auvergne
- William of Auxerre
- William of Ockham
- William of Ockham Attacks Thomist Ideas
- William of Saint-Amour
- William of Saint-Thierry
- Xenophanes
- Zhuangzi
- Zoroaster
