User blog comment:Wildoneshelper/Guess the Object (Round 2)!!/@comment-17897872-20140612064418

Wildoneshelper, I will leave you at peace after these 11 weird questions.


 * Did the ancient Mesopotamians discover or improve on it?
 * Did the ancient Egyptians discover or improve on it?
 * Did the ancient Chinese discover or improve on it?
 * Did the ancient Romans discover or improve on it?
 * Did the ancient Greeks discover or improve on it?
 * Did the Mesoamericans discover or improve on it?
 * Did the English, Portuguese, or Spanish discover or improve on it?
 * Did the Africans discover or improve on it?
 * Is it discussed every day or most days in biology class?
 * Is it discussed every day or most days in chemistry class?
 * Can it be found in another school class?