The Norman Conquest.--Claim of William to the throne.--The right of the strongest.--Map of Normandy.--The English Channel.--Nature of the French coast.--Nature of the English coast.--Northmen and Danes.--Character of the Northmen.--Their descendants.--The Dukes of Normandy.--The first duke, Rollo.--History of Rollo.--His rendezvous on th...