New Delhi: India's civilization goes back to the days of pre-Indus Valley as far as recorded history can travel back in time. There has been continuity and breaks though, making Sir Mohammed Allama Iqbal to
India TV News DeskPublished : Dec 03, 2012 23:20 IST, Updated : Dec 16, 2013 7:47 IST
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3. Indians made significant contributions to calculus, trigonometry, and algebra. The decimal system was invented in India in 100 B.C. The concept of zero as a number is also attributed to India.
