A.D. 606. Death of Aidan, king of Dalriada; Aedilfrid conquers Deira and expels Aeduin. A.D. 617. Aeduin regains the kingdom of Northumbria, and eleven years afterwards he and his people are converted to Christianity by Paulinus. A.D. 642-670. Angles, under King Oswy, subdue and make tributary to him the Britons of Strathclyde, as well as the greater portion of the Picts and Scots. A.D. 672. Unsuccessful attempt of the Picts to throw off the yoke of the Angles. A.D. 684. Ecgfrid, king of Northumbria, sends an army to Ireland, and lays waste part of that country. In the following year he invades the kingdom of the Picts, but is defeated and slain at Dunnichen. The Picts, Scots, and Britons of Strathclyde, etc., now regain their freedom, but the Angles still retain possession of Galloway. A.D. 740. Alpin, king of the Scots of Dalriada, invades Galloway, but is slain near Kirkcudbright. A.D. 744. Battle between Angus, king of the Picts, and the Britons of Strathclyde. Soon afterwards the former is joined by Eadberct of Northumbria, and a combined attack on the kingdom of Strathclyde is made, with the result that the latter adds the whole of Ayrshire to his Galloway possessions. (Eadbertus campum Cyil cum aliis regionibus suo regno addidit.--Bede, _Chron._) A.D. 795. First appearance of Norwegian and Danish pirates in the western seas. A.D. 802. Iona burned by Norsemen. A.D. 806. Iona again plundered by Norsemen, and sixty-eight men of the monastery slain. A.D. 844. Kenneth mac Alpin, king of the Scots, becomes also king of the Picts. A.D. 853. Arrival of Olaf the White in Ireland. He seizes Dublin, and establishes himself there as king, after which he makes an expedition into Scotland, besieges, and takes Alclyde after a siege of four months. A.D. 946. Kingdom of Cumbria ceded to Malcolm, king of the Scots. (Strat Clut vastata est a Saxonibus.--_Hist. Brit._) SECTION III. _Structure of the Wooden Islands._