The definition of beauty has evolved over time and has been influenced by various factors, including cultural, social, and historical changes. In ancient times, beauty was often associated with symmetry, proportion, and physical attractiveness. For example, in Ancient Greece, beauty was seen as a reflection of inner goodness and physical perfection. During the Renaissance period, artists and philosophers began to view beauty in a more subjective and individualistic way, emphasizing the uniqueness of each individual and the role of personal expression. This shift in perspective led to a broader definition of beauty that included a wider range of physical characteristics and qualities. In the 20th century, the rise of mass media and advertising further shaped our perception of beauty, often promoting a narrow and unrealistic standard of beauty based on unattainable ideals.