Arab factions--Berbers--Spaniards--Muwallads--Despised by
Arabs--Revolts at Cordova, &c.--Intrigues with the Franks--Letter of
Louis--Revolt of Toledo--Christians and Muwallads make common
cause--Omar--Begins life as a bandit--Captured--Escapes--Heads the
national party--Becomes a Christian--Utterly defeated--Muwallads desert
him--Death of Omar--Stronghold of Bobastro captured--End of
rebellion--Christians under Abdurrahman III.--Almanzor--Anarchy--End of
Khalifate--Knowledge of Christianity and Mohammedanism slight among
those of the opposite creed--Christian writers on
Islam--Eulogius--Mohammed's relation to Christianity--Alvar--Unfair to
Mohammed--His ignorance of the Koran--Prophecy of Daniel.--Moslem
knowledge of Christianity--Mistaken idea of the Trinity--Ibn Hazm--St
James of Compostella 98-114


CHAPTER IX.

Traces of amalgamation of religions--Instances elsewhere--Essential
differences of Islam and Christianity--Compromise attempted--Influence
of Islam, over Christianity--Innovating spirit in Spain--Heresy in
Septimania--Its possible connection with Mohammedanism--Migetian heresy
as to the Trinity--Its approach to the Mohammedan doctrine--Other
similar heresies--Adoptionism--Our knowledge of it--Whence
derived--Connection with Islam--Its author or authors--Probably
Elipandus--His opponents--His character--Independence--Jealousy of the
Free Church in the North--Nature of Adoptionism--Not a revival of
Nestorianism---Origin of the name--Arose from inadvertence--Felix--His
arguments--Alcuin's answers--Christ, the Son of God by adoption--Unity
of Persons acknowledged--First mention of theory--Adrian---Extension of
heresy--Its opponents--Felix amenable to Church discipline--Elipandus