The populist party was chiefly composed of

classical republicanism, also known as civic humanism, is a form of republicanism  developed in the renaissance inspired by the governmental forms and writings of  classical  antiquity, especially such  classical  writers as aristotle, polybius, and cicero.

well, there are a lot of places we get information about earth from. like science classes, websites, books, newspapers, etc.

think its caste system

explanation:

answer; opportunities to further the healthy development to deal with the crisis of the next stage;