In this essay, Diamond analyses the reasons why evolutionary courses differed for peoples of different continents. He points out the existence of racist in parts of the world where societies are more developed and doubts to their belief that people from less developed countries does not have the capability of being educated, or even human. In order to answer his questions, he attempts to explain why certain civilization grows faster than the others and proceed continent-by-continent. Giving the historical examples of the Aztec and Inca Empires, Christopher Columbus colonizing the Americas, Europeans conquering the Africa, and the societal development of Australia (especially in Tasmania), Diamond concludes the factors that leads to more advanced
