May 18 On this day in history birth of omar Khayyám, Persian mathematician, poet and philosopher (d. 1131)
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 Al-Biruni, Arabic royal astrologer, dies at 74 on this day in history.
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Important Dates And Events In History - Hisdates.Com