Every society functions by separating groups through different stratification systems. As Larkin (2015) notes, “society organizes itself so that individuals know their place or rank, also called social position, in society.” Stratification places people in different positions, all of which are important, but some offer more power and prestige than others. In this essay I will examine three types of stratification systems: slavery, caste, and class systems. I will explore both the mobility of the system and how individuals are positioned within it. This system has been used in both India and European societies, creating a bias that favors the rich and powerful while controlling the poor. Furthermore, the class system is the most commonly used system in modern times. People are sorted into this system based on their income and prestige. When a person is born, he is adopted into his family's class, but after he leaves, he creates his own class. They may have a higher or lower social class than their parents. This system consists of three main levels: lower, middle and upper class. In the United States, this system is very popular and can be associated with the American dream, which suggests that a person with dedication, hard work and courage can live happily and prosper..