Ancient history says that it’s from Brahma's divine manifestation of four groups. Priests and teachers were cast from his mouth, rulers and warriors from his arms, merchants and traders from his thighs, and workers and peasants from his feet.
And now it’s from their ancestors, previous wealth, deeds and stuff.
What is described are the conditions that led to the reformation of the Estates-General in France during the reign of Louis XVI for the first time in 175 years.