Have efforts toward equality only begun with socialism in Russia, or have inequalities existed since the beginning of the world?

According to Osho, inequalities are the ordinary, age-old state of humanity; equality is a rare, highly evolved consciousness that has appeared in individuals like Mahavira and Buddha long before socialism. Collective equality unfolds slowly, over millennia, as equalizing consciousness grows. Effort toward equality is meaningful—and itself karmically conditioned—guiding humanity’s maturation from childhood toward equanimity where higher/lower distinctions dissolve.