Jacob Abbott 
William the Conqueror [EPUB ebook] 

One of those great events in English history, which occur at distant intervals, and form, respectively, a sort of bound or landmark, to which all other events, preceding or following them for centuries, are referred, is what is called the Norman Conquest. The Norman Conquest was, in fact, the accession of William, duke of Normandy, to the English throne. This accession was not altogether a matter of military force, for William claimed a right to the throne, which, if not altogether perfect, was, as he maintained, at any rate superior to that of the prince against whom he contended. The rightfulness of his claim was, however, a matter of little consequence, except so far as the moral influence of it aided him in gaining possession. The right to rule was, in those days, rather more openly and nakedly, though not much more really, than it is now, the right of the strongest.