The concept of ‘white privilege’ was popularized by Peggy McIntosh in a 1989 paper written at Harvard University and titled, “White Privilege: Unpacking The Invisible Knapsack.” It was written as a personal, experiential essay, and it details 26 ways in which McIntosh’s skin color has been decisive in determining her life outcomes. This hugely influential paper has been responsible for the subsequent proliferation of a rigidly enforced theory of privilege throughout social movements and university classrooms.