Sapiens by Yuval Noah Harari (Book Review)

A 2014 Sunday Times best-seller, Sapiens tells the story of evolution in a brand new way. Adapted into a story cum report format, Harari presents his version of the history of humankind using results of scientific research and speculative theories. He thus divides the whole of human evolution into three main revolutions: The Cognitive Revolution, the Agricultural Revolution and the Scientific Revolution. At the time of the Homo Sapiens there lived five other human species: the Neanderthals, the Homo Erectus , the Homo ergaster , the Homo denisova and Homo rudolfensis . We, Homo Sapiens , lived together in Africa while the other species were scattered across the world. Our failure in the first attempt to invade Europe ignited the Cognitive Revolution. It leads us to become thinking people who could organize ourselves into large groups. Thus, we could form small societies that were united by belief and culture. Once we had accomplished organization, we were able to overthro...