Creed at 150, and Zahn places it at 120. See also J. C. Long, in Bap. Quar. Rev., Jan. 1892: 89-101. 2. _In the Western Church_, we may (with Hagenbach) distinguish three periods: (_a_) The period of Scholasticism,—introduced by Peter Lombard (1100-1160), and reaching its culmination in Thomas Aquinas (1221-1274) and Duns Scotus (1265-1308). Though Systematic Theology had its beginning in the Eastern Church, its development has been confined almost wholly to the Western. Augustine (353-430) wrote his “Encheiridion ad Laurentium” and his “De Civitate Dei,” and John Scotus Erigena († 850), Roscelin (1092-1122), and Abelard (1079-1142), in their attempts at the rational explanation of the Christian doctrine foreshadowed the works of the great scholastic teachers. Anselm of Canterbury (1034-1109), with his “Proslogion de Dei Existentia” and his “Cur Deus Homo,” has sometimes, but wrongly, been called the founder of Scholasticism. Allen, in his Continuity of Christian Thought, represents the transcendence of God as the controlling principle of the Augustinian and of the Western theology. The Eastern Church, he maintains, had founded its theology on God’s immanence. Paine, in his Evolution of Trinitarianism, shows that this is erroneous. Augustine was a theistic monist. He declares that “Dei voluntas rerum natura est,” and regards God’s upholding as a continuous creation. Western theology recognized the immanence of God as well as his transcendence.