There is probably not another hill in Ireland so well adapted both for a place for assemblies and a site for building as Uisneach. Its summit is extensive. There are springs of the purest water on it. Plenty of stones of almost every size abound, and the soil, even in the most elevated parts, is of great fertility. In the troublesome times of yore, Uisneach possessed advantages that were most important in its elevation, and the extensive view it commanded; for they made it impossible for an army to approach it from any side without being seen by the watchers on its top. From the many advantages that this beautiful and extraordinary hill possesses, it seems strange that it was not chosen by the ancient Irish for a place of central government. It would have been even better suited for such a purpose than Tara. It probably would have been the chief seat of ancient Irish sovereignty if it had not been that the mistake made in selecting Tara instead of it, occurred so far back in what may be called prehistoric times, and antiquity had given Tara such a prestige that it continued to be the most important place in Ireland until it was abandoned as a seat of government in the sixth century. But Uisneach was also used as a place of residence by the Irish over-kings. That they sometimes resided there can be proved from ancient Gaelic writings. It was supposed to be the geographical centre of Ireland, and before the formation of the province of Meath by the over-king, Tuathal, in the early part of the second century, the four provinces met at Uisneach Hill. It is curious what a close guess the ancients made to locate the exact centre of the island. They seem, however, to have placed it four or five miles too far to the north-east, for, according to the most recent surveys, the hill of Knock Cosgrey is in the exact geographical centre of Ireland. In far-back ancient times, before the province of Meath had been formed by taking parts of the four original provinces, the hill of Uisneach was in Connacht. This almost exact quaternal division of Ireland into provinces, and their meeting at a point that was supposed to be the exact centre of the island, is a very curious and interesting feature in ancient Irish polity. In other countries, provinces seem to have originated by mere accident, some being big, and some little; but in Ireland they seem to have been laid out by line and rule, for the four provinces that met at Uisneach must have been very nearly of equal area. The celebrated Cat Stone on the hill of Uisneach was known from remote antiquity as _Ail na Mireann_, or "the rock of the divisions," because the four provinces met at it. This rock was known by this name among the peasantry of the neighbourhood up to recent times, until Irish became a dead language in this part of the country.