I hope you don't mean only Indian civilizations. (please note that it is possible that some of the inventions which i am stating in a particular country section may also have been invented in some other part of world independently. I'll try my best to stop anything like that from happening. If you find any mistake please feel free to comment.) Ancient Greece. 1.The Antikythera mechanism is an ancient analog computer designed to predict astronomical positions and eclipses for calendrical & astrological purposes, as well as the cycles of Olympic Games.