Are big events or are individual actions and decisions a result of long term social, environmental and economic factors

  Are big events or are individual actions and decisions a result of long term social, environmental and economic factors (Guns Germs and Steel; Soldiers and Ghosts)   Historians often argue that big events, such as the European conquest of the Americas, the rise of Rome, and the Mongol conquests are a result of long-term social, environmental, and economic factors. Others claim that individual actions and decisions are more important, What do you believe? What is the role of individuals in history? In your answer, be sure to use specific examples from class, Guns, Germs, and Steel, and Soldiers and Ghosts-