"Containing thousands of genocide‐related concepts and experiences, the USC Shoah Foundation Institute Thesaurus is one of the first of its kind. It lists the indexing terms used to describe the Institute's video testimonies and arranges them hierarchically under broad headings. These terms have been assigned directly to digital time codes within testimonies where the specific topics are discussed, in much the same way that book index entries specify the page numbers where topics are covered. Because the Thesaurus currently contains more than 50,000 indexing terms, most of which are geographic in nature, we have abridged this document to make it more manageable in size - excluding the geographic indexing terms, the definitions and scope notes, as well as synonyms and quasi‐synonyms assigned as equivalent but non‐preferred terms. USC Shoah Foundation Institute's indexing system."