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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 Almoravid emir, Yusuf ibn Tashfin, conquers Tangier, Badis and Hunayn.Picard C. (1997) La mer et les musulmans d'Occident au Moyen Age. Paris: Presses Universitaires de France. |
1100
Nov 11
Age: 21y
marriageHenry I Beauclerc Westminster Abbey, Greater London, England ⇓ Married by Archbishop Anselm of Canterbury. 1 Source ⇓ |
| 1100 • In the Song Dynasty capital of Kaifeng, the number of registered people within the walls is 1,050,000; the army stationed there boosts the overall populace to some 1.4 million people. |
1102
Feb 7
Age: 23y
birth of childEmpress Matilda Of England 2 Sources ⇓ |
| 1102 • Raymond IV of Toulouse begins to besiege Tripoli, and takes the nominal title of Count of Tripoli. |
1118
May 1
Age: 39y
| 1118 • Sylvester of Kiev becomes bishop of Pereyaslav. |