§ 91. DOCTRINAL CONTROVERSIES. (1) The Adoptionist Controversy, A.D. 782-799. (2) Controversy about the Procession of the Holy Spirit. (3) The Eucharistic Controversy, A.D. 844. (4) Controversy about the Conception of the Virgin. (5) The Predestinarian Controversy A.D. 847-868. (6) The Trinitarian Controversy, A.D. 857. § 92. ENDEAVOURS AFTER REFORMATION. (1) The Carolingian Opposition to Image Worship, A.D. 790-825. (2) Agobard of Lyons and Claudius of Turin. SECOND SECTION. HISTORY OF THE GERMANO-ROMANIC CHURCH, FROM THE 10TH TO THE 13TH CENTURY. A.D. 911-1294. I. The Spread of Christianity. § 93. MISSIONARY ENTERPRISES. (1) The Scandinavian Mission Field. (2) Denmark. (3) Sweden. (4) The Norwegians. (5) In the North-Western Group of Islands. (6) The Slavo-Magyar Mission-field. (7) The Poles. (8) Hungary. (9) The Wendish Races. (10) Pomerania. (11) Mission Work among the Finns and Lithuanians. (12) Esthonia, Livonia, and Courland. (13) The Prussians. (14) Lithuania. (15) The Mongolian Mission Field. (16) The Mission Field of Islam. § 94. THE CRUSADES. (1) The First Crusade, A.D. 1096. (2) The Second Crusade, A.D. 1147. (3) The Third Crusade, A.D. 1189. (4) The Fourth Crusade, A.D. 1217. (5) The Fifth Crusade, A.D. 1228. (6) The Sixth, A.D. 1248, and Seventh, A.D. 1270, Crusades. § 95. ISLAM AND THE JEWS IN EUROPE. (1) Islam in Sicily. (2) Islam in Spain. (3) The Jews in Europe. II.--The Hierarchy, the Clergy, and the Monks.