Ethnic groups that compose the population of Benin include the Fon, Adja, Yoruba and Bariba peoples, as well as the Peulh, Ottamari and Yoa-Lokpa. Among the ethinc groups in Nepal are the Chhettri, Brahman-Hill, Magar and Tharu peoples. Ethnic groups in Vietnam include the Kinh, Tay, Thai and Muong peoples.
An ethnic group is a group of people with a shared sense of cultural identity. While racial traits sometimes play a role in defining ethnic groups, the shared patters of behavior and belief are what truly differentiate ethnic groups. In the United States, for instance, the African-American population is racially different from the majority white population but also classifies as an ethnic group due to distinctive black culture developed over the years.