identify with any number (including all six) of the racial categories. Each person has two identifying attributes, racial identity and whether or not they are of Hispanic ethnicity. These categories are sociopolitical constructs and should not be interpreted as being scientific or anthropological in nature. They have been changed from one census to another, and the racial categories include both "racial" and national origin groups. In 2007, the Equal Employment Opportunity Commission of the U.S. Department of Labor finalized the update of its EEO-1 report format and guidelines concerning the definitions of racial/ethnic categories. Census-designated ethnicities: Hispanic or Latino origin The question on Hispanic or Latino origin is separate from the question on race. Hispanic and Latino Americans have ethnic origins in a Spanish-speaking country or Brazil. Latin American countries are, like the United States, racially diverse. Consequently, no separate racial category exists for Hispanic and Latino Americans, as they do not constitute a race, nor a national group. When responding to the race question on the census form, each person is asked to choose from among the same racial categories as all Americans, and are included in the numbers reported for those races. Each racial category may contain Non-Hispanic or Latino and Hispanic or Latino Americans. For example: the White or European American race category contains Non-Hispanic Whites and Hispanic Whites (see White Hispanic and Latino Americans); the Black or African American category contains Non-Hispanic Blacks and Hispanic Blacks (see Black Hispanic and Latino Americans); the Asian-American category contains Non-Hispanic Asians and Hispanic Asians (see Asian Hispanic and Latino Americans), and likewise for all the other categories. See the section on Hispanic and Latino Americans in this article. Self-identifying as both Hispanic or Latino and not Hispanic or Latino is neither explicitly allowed nor explicitly prohibited. Ethnicity, national origin, and cultural groups (generally not mentioned in census data) Social definitions of race In the United States since its early history, Native Americans, Africans, and Europeans were considered to belong to different races. For nearly three centuries, the criteria for membership in these groups were similar, comprising a person's appearance, their social circle (how they lived), and known non-White ancestry (the single drop rule). History played a part, as persons with known slave ancestors were assumed to be African (or, in later usage, Black), regardless of whether they also had European ancestry. The differences between how Native American and Black