What social factors affect a civilizations rise or fall

Many factors can affect the power of a given civilization. A country on the rise’s citizens are united and loyal to their culture (An example is the citizens of early Rome). Other factors that can affect a civilization’s rise can include a discovery of new resource in the area, an economic boom, or a very good ruler (Pericles). On the contrary, a country can fall do to disloyal and rioting people, the lack of resources, an economic crash, a terrible war that ravages the civilization’s lands, or a terrible leader (Hitler).