Why do you think human societies have given social meanings to differences in skin pigmentation?

Human societies have historically assigned social meanings to differences in skin pigmentation due to a combination of historical, cultural, and psychological factors. These differences often became markers of identity, leading to the establishment of hierarchies and stereotypes that justified unequal treatment. Additionally, social constructs around race emerged as a way to categorize people, influencing power dynamics and social interactions. Such meanings have persisted over time, often perpetuating discrimination and social divisions.