In his 1997 work Guns, Germs and Steel, Jared Diamond marshals evidence from five continents and across 13,000 years of human history in an attempt to answer the question of why that history unfolded so differently in various parts of the globe. His results offer new explanations for why the unequal divisions of power and wealth so familiar to us today came into existence - and have persisted. Balancing materials drawn from a vast range of...