Here, with appropriate local subdivision, are entered works on the discipline of ethnology, and works on the origin, distribution, and characteristics of the elements of the population of a particular region or country. Theoretical works on the concept of groups of people who are bound together by common ties of ancestry and culture are entered under Ethnic groups. Works on the subjective sense of belonging to an individual ethnic group are entered under Ethnicity. General works on racial, religious, ethnic, or other minority groups are entered under Minorities. --individual ethnic groups and peoples, e.g. Indo-Europeans; Caucasian race; Hopi Indians; Igbo (African people)