Dear Abdul-Ahad Please consult https://sites.math.rutgers.edu/~zeilberg/Hist21/mt1S.pdf for the full solutions. You got 80 points (out of 120). Here is what you got wrong: #4 (i): -5 points (ii): -5 points #5: -5 points (did not explain how you got it, does not follow from the way we did it in class) #6: -5 points (many dates are wrong, confused BC and AD) #7: -5 points (you only did the second part) #8: -5 points (Babylonians did know about cubic equations, Thaler was the father) #12: -10 points Best wishes, Dr. Z.