Silver shields were now made (B.C. 1383) at Airget-Ros, by Enna Airgtheach, and four-horse chariots were first used in the time of Roitheachtaigh, who was killed by lightning near the Giant's Causeway. Ollamh Fodhla (the wise or learned man) distinguished himself still more by instituting triennial assemblies at Tara. Even should the date given by the Four Masters (1317 B.C.) be called in question, there is no doubt of the fact, which must have occurred some centuries before the Christian era; and this would appear to be the earliest instance of a national convocation or parliament in any country. Ollamh Fodhla also appointed chieftains over every cantred or hundred, he constructed a rath at Tara, and died there in the fortieth year of his reign. At the reign of Cimbaoth (B.C. 716) we come to that period which Tighernach considers the commencement of indisputably authentic history. It is strange that he should have selected a provincial chief, and a period in no way remarkable except for the building of the palace of Emania.[84] But the student of Irish pre-Christian annals may be content to commence with solid foundation as early as seven centuries before Christ. The era was an important one in universal history. The Greeks had then counted sixteen Olympiads, and crowned Pythagoras the victor. Hippomenes was archon at Athens. Romulus had been succeeded by Numa Pompilius, and the foundations of imperial Rome were laid in blood by barbarian hordes. The Chaldeans had just taken the palm in astronomical observations, and recorded for the first time a lunar eclipse; while the baffled Assyrian hosts relinquished the siege of Tyre, unhappily reserved for the cruel destruction accomplished by Alexander, a few centuries later. The prophecies of Isaiah were still resounding in the ears of an ungrateful people. He had spoken of the coming Christ and His all-peaceful mission in mystic imagery, and had given miraculous evidences of his predictions. But suffering should be the precursor of that marvellous advent. The Assyrian dashed in resistless torrent upon the fold. Israel was led captive. Hosea was in chains. Samaria and the kingdom of Israel were added to the conquests of Sennacherib; and the kingdom of Judah, harassed but not destroyed, waited the accomplishment of prophecy, and the measure of her crimes, ere the most ancient of peoples should for ever cease to be a nation. Ugainé Môr is the next monarch who demands notice. His obituary record is thus given by the Four Masters:--"At the end of this year, A.M. 4606, Ugainé Môr, after he had been full forty years King of Ireland, and of the whole of the west of Europe, as far as Muir-Toirrian, was slain by Badhbhchad at Tealach-an-Choisgair, in Bregia. This Ugainé was he who exacted oaths by all the elements, visible and invisible, from the men of Ireland in general, that they would never contend for the sovereignty of Ireland with his children or his race."