This course just aims at hitting a refresh button by just revisiting some of the greatest inventions ever made by our ancestors. A study recently published in Science reveals that our forefathers were innovative thinkers and had better ways of doing things. The study shows, among other things, that an especially advanced technique used to make stone tools was not just discovered once and then simply copied. Instead, the technique was discovered many times at different points in time across the globe, which suggests that our forefathers were generally more resourceful than previously thought.