The general subject files include materials collected by anthropologist Katherine Spilde about Native Americans, Native American gaming, and gaming in the United States. The materials date from 1789, 1793, 1823 to 1832, 1851, 1883, 1886, 1903, 1909, and 1971 to 2014, with the bulk of materials dating from 1990 to 2005. Materials dating from the eighteenth, nineteenth, and early-twentieth centuries are reproductions of United States Supreme Court opinions. Dr. Spilde collected materials about economics, gaming, the regulation of gaming, law, the National Congress of American Indians (NCAI), the National Indian Gaming Commission (NIGC), sociocultural topics, and socioeconomic topics. Materials include socioeconomic reports, testimonies, congressional records, correspondence, memos, press releases, audiovisual materials, periodicals, conference materials, pamphlets, packets, booklets, notes, journal articles, legal briefs, legislative documents, court opinions, notes, and newspaper articles. The series also includes materials about specific topics related to gaming such as the socioeconomic impact of gaming, criminal activities related to gaming, compulsive gaming, bankruptcy as a result of gaming, and the federal regulation of gaming.