But it is in more recent times that the history and records of Aileach become supremely interesting. It was from there that Muircheartach Mac Neill, styled the Hector of the west of Europe by old annalists, started on his celebrated "Circuit of Ireland" in the year 942. He was heir apparent to the chief kingship of Ireland, and wanted to show the provincial rulers that he was fit to rule _them_. So he determined to start on his circuit in the depth of winter, when it appears the ancient Irish seldom went on forays, and either make or persuade the provincial rulers to acknowledge his right to the throne when the then reigning chief king, Donacha, died. The way he is said to have chosen men for the expedition is very curious and very Irish. He caused a tent to be erected, keeping the cause of its erection unknown, and made his men to go into it at night. A fierce dog attacked every one that entered; and opposite to where the dog was, an armed man also attacked those that entered; both man and dog simultaneously attacking the intruder. If he who entered the tent flinched neither from dog nor man, but showed fight to both, he was chosen; but whoever showed the least sign of cowardice was rejected. Out of his whole army we are told that Muircheartach could only get a thousand men, and with that small army, protected by strong leather cloaks, he started on his Circuit of Ireland to force, intimidate, or coax the provincial kings to acknowledge that he was their master, and that he was to be their next suzerain. Our principal source of information about the Circuit comes from a poem of undoubted authority and antiquity, written by one called Cormacan Eigeas, who accompanied Muircheartach on the expedition. It is one of the most remarkable poems of its age, not only in Gaelic, but in any language. It was translated more than forty years ago, and may be seen in the "Transactions" of the Royal Irish Academy; but it is not probable that even forty persons have ever read it, so little general interest has heretofore been taken in Gaelic literature or Irish history. For these reasons it cannot be uninteresting to give some extracts from it. It commences: "O Muircheartach, son of the valiant Niall, Thou hast taken the hostages of Inis Fail, Thou hast brought them all into Aileach, Into the stone-built palace of steeds! "Thou didst go forth from us with a thousand heroes Of the race of Eoghan of red weapons, To make the great Circuit of Ireland, O Muircheartach of the yellow hair! "The day thou didst set out from us eastwards Into the fair province of Connor,[7] Many were the tears down beauteous cheeks Among the fair-haired women of Aileach."