Events in History
- Mar 18 First Council of the Lateran (9th ecumenical council) opens in Rome, agreements of the Concordat of Worms ratified
Historical Figures Born in 1123
- Mar 29 Shizong of Jin [Wulu], Chinese Emperor and the 5th Emperor of the Jurchen-led Jin dynasty (1161-89), (d. 1189)
Historical Figures Who Died in 1123
- Aug 29 Eystein I, King of Norway (1103-23) portrayed as the "peace king" who ruled alongside his brothers Sigurd the Crusader and Olaf Magnusson, dies of an illness at around 34 or 35
- Dec 4 Omar Khayyám, Persian mathematician (cubic equations), astronomer (Jalali calendar, basis of the Persian calendar), poet (quatrains) and philosopher, dies at 83
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