1. Guildy :: Remember, remember, the velvet November

"Social power was destined to pass from one class to next in the prescribed order, or cycle. The 'age of warriors', which brings strict order to society and a return to fundamental values, essentially leads to excessive focus on strong man rule and warfare. It is followed by an 'age of intellectuals', which bring a sense of liberation in the mental sphere but soon replace that freedom with the yoke of newer ideas. Over time this age merges into an 'age of acquisitors', which brings progress in the material sphere, but this is soon replaced by increased physical and mental exploitation. The Servile Wars spelled the doom of the Roman Republic. Labour conflict could be the undoing of Capitalism, according to this theory. And so the cycle moves on its endless round, until the civilisation ceases to exist or is taken over by a superior or more powerful civilisation."

https://en.wikipedia.org/wiki/Social_cycle_theory