Yet, reality changes with different cultures. The number 9 is a very lucky number in some Asian cultures and a very unlucky number in other cultures. Our calendar is arbitrary. There is a Mayan calendar, a Jewish calendar. In short, what you call the day depends on your cultural traditions.
Reality can change.
The subjective characteristics of anthropologists. Ones age, ethnicity, and religious background can affect how they view the group in which they are working. In other words, the personal qualities of the anthropologist contribute to subjectivity. Margaret Mead said that the best anthropologist was an older woman. What Mead was referring to was the respect which older women received from all members in a society.