Historical Events In 1123

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

Aug 29   On this day in history death of king Eystein I of Norway (b. ca. 1088)  

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