for refuge from their enemies, the sons of Shem. At length
the Formorians prevailed, and the children of the second
immigration were either slain or driven into exile, from
which some of their posterity returned long afterwards,
and again disputed the country, under two different
denominations.

The _Firbolgs_ or Belgae are the _third_ immigration.
They were victorious under their chiefs, the five sons
of Dela, and divided the island into five portions. But
they lived in days when the earth--the known parts of it
at least--was being eagerly scrambled for by the overflowing
hosts of Asia, and they were not long left in undisputed
possession of so tempting a prize. Another expedition,
claiming descent from the common ancestor, Nemedh, arrived
to contest their supremacy. These last--the _fourth_
immigration--are depicted to us as accomplished soothsayers
and necromancers who came out of Greece. They could quell
storms; cure diseases; work in metals; foretell future
events; forge magical weapons; and raise the dead to
life; they are called the _Tuatha de Danans_, and by
their supernatural power, as well as by virtue of "the
Lia Fail," or fabled "stone of destiny," they subdued
their Belgic kinsmen, and exercised sovereignty over
them, till they in turn were displaced by the Gaelic, or
_fifth_ immigration.

This fifth and final colony called themselves alternately,
or at different periods of their history, _Gael_, from
one of their remote ancestors; _Milesians_, from the