Monday, June 18, 2012
June 18, 860 Swedish Vikings attacked Constantinople. 1053 Pope Leo IX was taken prisoner by the Normans. 1155 German King Frederick Barbarossa was crowned Holy Roman Emperor. 1178 Proposed time of origin of the lunar crater Giordano Bruno - five Canterbury monks reported an explosion on the moon (only known observation). 1264 The Parliament of Ireland met at Castledermot in County Kildare, the first definitively known meeting of this Irish legislature.