Definitions of who fits in to which racial category change over time. There was a time in US history when the Irish might not have been considered “white,” yet over the course of decades they became firmly entrenched in the racial caste system as white people.5 Those who were or were not considered Black oftentimes depended on skin tone and subjective opinion rather than ancestry. In the United States, race has largely been defined in terms of physical appearance. It tends to be viewed as something