 Ethnographic groups are presumed to be significantly assimilated with the larger ethnic group they are part of, though they retain distinctive, differentiating characteristics related to cultural values such as speech, religion, costume, or other cultural aspects.The concept of an ethnographic group is rarely found in Western works, and has been attributed to late 20th-century ethnographic studies in the countries of the former Soviet Union and its Eastern Bloc.This term has been used for example in works of Bulgarian, Georgian, Hungarian and Polish ethnographers.