Variant of CIP 2000 - NGS University-level Historical Groupings
- 31 - History Studies
- 30.21 - Holocaust and Related Studies
- 30.2101 - Holocaust and Related Studies
- 30.22 - Classical and Ancient Studies
- 30.2201 - Ancient Studies/Civilization
- 30.2202 - Classical, Ancient Mediterranean and Near Eastern Studies and Archeology
- 54.0101 - History, General
- 54.0102 - American History (United States)
- 54.0103 - European History
- 54.0106 - Asian History
- 54.0107 - Canadian History
- 54.0199 - History, Other
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