Chapter XXVI: (pp. 368-395)

Reverting to his proper subject of the origin and purpose of the round towers, our author examines the evidence bearing on the date of their erection. The Ulster Annals record the destruction of fifty-seven of these towers by an earthquake in A.D. 448, the natural inference being that they must have existed before the fifth century, but how long before is matter of conjecture. Tradition connects them with a personage styled the _Goban Saer_ (Freemason Sage); but this title being the name of a class, not of an individual, and having no settled place in chronology, does not further the solution of the difficulty. A better clue is found in the name of the place whereon was fought the first decisive battle between the Tuath-de-danaan invaders and the Celtic (Firbolg) inhabitants, which gave the supremacy of the island to the former. From the number of commemorative towers erected there by the conquerors, this came to be known as _Moytura_ (in Irish, _Moye-tureadh_, _i.e._ “the field of the towers”); and as the date of the second battle, fought centuries later, is approximately B.C. 600 (p. 449), there is reason for assigning the erection of round towers to a period long preceding that of Christianity. The ascription of these towers to the Tuath-de-danaans is in a degree warranted by the fact that the word “_Tuathan-Tower_” is a well-known Irish expression, and that there seems to be no other word in the language which conveys the same idea.