Free population of Athens had four strata: Eupatrides, geomores, demiurgus, and thetes – the nobles, small farmers, craftsmen, and poor peasants, respectively (Ağaoğulları, 2011, p.36). Both inter-class and intra-class struggles between these groups had led to different types of administrations such as Aristocracy, oligarchy, plutocracy, and democracy. Perioikos (strata of Sparta)