CHAPTER XXI.
THE DARK AGES.
The Anticipated Second Coming of Christ.――State of the World in the Tenth Century.――Enduring Architecture.――Power of the Papacy.――Vitality of the Christian Religion.――The Pope and the Patriarch.――Intolerance of Hildebrand.――Humiliation of the Emperor Henry IV.――Farewell Letter of Monomaque.――The Crusades. ――Vladimir of Russia.――His Introduction of Christianity to his Realms.――Marriage with the Christian Princess Anne.――Extirpation of Paganism.――The Baptism.――The Spiritual Conversion of Vladimir.