The classification of 'Caucasian' as a racial category solely reflects physical characteristics and has remained unchanged since its inception in the 18th century.

The classification of 'Caucasian' as a racial category began in the 18th century and was based on physical traits like skin color and facial features. This idea was created by scientists who thought these physical characteristics could define whole groups of people. However, this classification does not consider cultural, social, or individual differences, which are important for understanding human diversity. For example, people from different countries in Europe, the Middle East, and North Africa are all categorized as Caucasian, even though they have very different customs and histories. Over time, many scholars have argued that such rigid categories are too simplistic and do not reflect the complex reality of human identity.