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1079
| 1079 • Persian astronomer, Omar Khayyám, computed the length of the year to be exactly 365.24219858156 days, the most accurate calculation of his time. Khayyam also, in Treatise on Demonstrations of Problems in Algebra, produced a complete classification of cubic equations and their geometric solutions. |
about
Age: 1y
1080
Age: 1y
baptismShe was christened (baptised) Edith, and Robert Curthose stood as godfather at the ceremony. Queen Matilda, consort of William the Conqueror, was also present, and was godmother. Baby Matilda pulled at Queen Matilda's headress, which was seen as an omen that the younger Matilda would be queen one day. |
| 1080 • The Rubenid Principality of Cilicia gains independence after its founder, Ruben I, Prince of Armenia, succeeds in establishing his authority in the mountainous regions of Cilicia (approximate date). |
1100
Nov 11
Age: 21y
marriageHenry I Beauclerc Westminster Abbey, Greater London, England ⇓ Married by Archbishop Anselm of Canterbury. 1 Source ⇓ |
| 1100 • After a success over the Armenians of Cilicia and the emirate of Aleppo, Baldwin of Bourcq becomes Count of Edessa with the support of the patriarch Dagobert of Pisa. |
1102
Feb 7
Age: 23y
birth of childEmpress Matilda Of England 2 Sources ⇓ |
| 1102 • At the Council of London, the Roman Catholic Church bans sodomy and the sale of Christian slaves to non-Christian countries. |
1118
May 1
Age: 39y
| 1118 • Roger of Salerno, Prince of Antioch, captures Azaz from the Seljuk Turks. |