Class struggle is class conflict looked at from a Marxist perspective. In Marxist theory, "The history of all hitherto existing society is the history of class struggle", Karl Marx, Communist Manifesto, 1848.
... first to have the title of "Tyrant" was Pisistratus in 560 BC.
In modern times Tyrant has come to mean a dictator who rules with cruelty.
Bullying is a form of ...