Changing social hierarchies refer to the shifts in the structure and organization of society based on class, race, and social status. During the period from 1450 to 1750, these hierarchies were influenced by various factors such as colonization, economic transformations, and cultural exchanges, leading to significant alterations in the power dynamics between different groups. This era saw the emergence of new social classes, the redefinition of race and ethnicity, and changes in the roles of individuals within society.