Dublin by Vikings ("The heathens still at Duiblinn" in 842.2 and "An encampment of the foreigners of Áth Cliath at Cluain Andobuir" in 845.12) to deaths of notable names ("Carlus son of Conn son of Donnchad was killed in Áth Cliath" in 960.2) to Dublin being ruled by the Irish ("The foreigners returned to Áth Cliath and gave hostages to Brian" in 1000.4). The town appears 66 different times in the Annals of Ulster and can be found in the following entries: 770.1, 790.2, 841.4, 842.2, 842.7, 845.12, 851.3, 870.2, 871.2 893.4, 895.6, 902.2, 917.4, 919.3, 920.5, 921.5, 921.8, 924.3, 926.6, 927.3, 930.1, 936.2, 938.5, 938.6, 939.1, 942.3, 942.7, 944.3, 945.6, 946.1, 947.1, 950.7, 951.3, 951.7, 956.3, 960.2, 961.1, 978.3, 980.1, 994.6, 995.2, 999.8, 1000.4, 1013.12, 1013.13, 1014.2, 1018.2, 1021.1, 1022.4, 1031.2, 1035.5, 1070.2, 1075.1, 1075.4, 1084.8, 1088.4, 1094.2, 1095.4, 1100.5, 1103.5, 1105.3, 1115.4, 1118.6, 1121.7, 1126.7, and 1128.6 Historical context Vikings in Ireland The Annals of Ulster contains a large amount of historical information on the invasions of the Vikings into Ireland and several specific events are mentioned that are paralleled in other Irish works such as the Cogad Gáedel re Gallaib. The Annals of Ulster documents the Viking invasions one year after the common starting event of the Viking Period, the raiding of Lindisfarne in 793, as mentioned by the Anglo-Saxon Chronicle. The first mentioning of the Vikings is very brief. "794.7 Devastation of all the islands of Britain by heathens," yet over the course of the annals their attacks become more specific "807.8 The heathens burned Inis Muiredaig and invade Ros Comáin." The Vikings are called several different names throughout the annals: foreigners, dark or fair-foreigners, heathens, Norsemen, Norse-Irish and Danes. It is often unclear if these titles attribute nationalities or certain alliances as they are used intermixed throughout. The annals mention the foreigners’ beginnings in Ireland as one of plunder and slave taking. According to the annals, the Norsemen took many slaves in their raids. "821.3 Étar was plundered by the heathens, and they carried off a great number of women into captivity." However, eventually they establish a permanent base in Áth Cliath or Dublin by 841. In "841.4 There was a naval camp at Linn Duachaill from which the peoples and churches of Tethba were plundered. There was a naval camp at Duiblinn from which the Laigin and the Uí Néill were plundered, both states