The purpose of demographic categories and associated codes is to allow terms that are authorized in Library of Congress Demographic Group Terms (LCDGT) to be collocated at a broad level. The demographic group category codes are three-character lowercase alphabetic strings. They are derived from the first letter of the demographic group category and two additional letters from the word(s) making up the demographic group category name.
Ethnic/cultural [eth] category is use for the ethnic or cultural identification of the group members (e.g., Asian Americans, Maratha (Indic people), Muscogee (North American people). For ethnic and cultural groups that are also demonyms associated with a supra-national region, a country or a sub-national region or jurisdiction, prefer Nation/regional category.
- 2016-02-29: new