Historical Events In 1123

Mar 18   1st Latern Council (9th ecumenical council) opens in Rome on this day in history.   

Aug 29   King Eystein I of Norway (b. ca. 1088) died in the year 1123.   

Dec 04   Omar Khayyám, Persian poet, astronomer, mathematician, and philosopher (b. 1048) died in the year 1123.