I. Serfdom, which was generally substituted for slavery, never
existed in Ireland, slavery having disappeared before the entry
of the Anglo-Normans.

II. The universal oppression of the lower classes, which caused
the simultaneous rising of the communes all over Europe, never
having existed in Ireland, we shall not be surprised to find no
mention in Irish history of that wide-spread institution of the
eleventh and following centuries.

III. An immense advantage which Ireland derived from her isolation,
on which she always insisted, was her being altogether freed from
the fearful mediaeval heresies which convulsed France particularly
for a long period, and which invariably came from the East.

For Erin remained so completely shut off from the rest of Europe,
that, in spite of its ardent Catholicism, the Crusades were never
preached to its inhabitants; and, if some individual Irishman
joined the ranks of the warriors led to Palestine by Richard Coeur
de Lion, the nation was in no way affected by the good or bad
results which everywhere ensued from the marching of the Christian
armies against the Moslem.

The sects which sprang from Manicheism were certainly an evil
consequence of the holy wars; and it would be a great error to
think that those heresies were short-lived and affected only for
a brief space of time the social and moral state of Europe. It may
be said that their fearfully disorganizing influence lasts to this
day. If modern secret societies do not, in point of fact, derive