Which idea best exemplified the hellenistic era led by alexander the great

The ideas of greek reason since Alexander had Aristotle as a tutor who was taught by Pluto who on turn was a student of Socrates.

the social historical theory explains the creation of the varnas, jats and of the untouchables. according to this theory, the caste system began with the arrival of the aryans in india. the aryans arrived in india around 1500 bc. the fair skinned aryans arrived in india from south europe and north asia.