Omer Khayyam | MCQs

    Q1: Which calendar was introduced by famous astronomer Omer Khayyam?

    مشہور ماہر فلکیات عمر خیام نے کون سا کیلنڈر متعارف کرایا؟
    • A. Jalali Calendar
    • B. Chess
    • C. None of these
    • D. Pin hole camera
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