May 18 Omar Khayyám, Persian mathematician, poet and philosopher (d. 1131) was born on this day in history.
May 25 On this day in history birth of emperor Shenzong of China (d. 1085)
Aug 09 On this day in history pope Damasus II [Poppo] dies in Rome, after reigning for only 23 days
Dec 13 On this day in history al-Biruni, Arabic royal astrologer, dies at 74
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Important Dates And Events In History - Hisdates.Com