The history of Ireland from the ninth to the twelfth century covers the first Viking raids in Ireland up to the Norman invasion. The most significant event in the eleventh century in Irish History was on 23 April 1014 when at the famous Battle of Clontarf, the Vikings and the men of North Leinster were defeated by King Brian Boru, who was murdered in his tent by Danish king Brodar after the victory. Just 40 years later another significant event took place when the first ever tornado in Europe was recorded on 30th April 1054 in Ireland at Rosdalla, Kilbeggan, Co Westmeath. (more…)
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