Thema Subject Categories 1.4

Previous versions of Thema are still available 1.3 1.2.

Browse the Thema subject categories hierarchy, or search for a specific term within the hierarchy.

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Notation Category heading Add Mod ?
N History and Archaeology
Use all N* codes for: specialist and general adult titles. DO NOT USE: code ‘N’ itself, but select specific categories from section N*. Use all N* codes with: other subject categories and qualifiers where appropriate, in particular PLACE 1* and TIME PERIOD 3* Qualifiers. A History work will usually need more than one subject category, from either History or non-History subjects to give greater detail, for example categories from Social Sciences (J*) with NHTB
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NH History
Use for: general history of broad topics, places etc. Use all NH* codes with: other subject codes to give more detail and also PLACE 1* and/or TIME PERIOD 3* Qualifiers as appropriate.
Prefer: ‘history of’ categories from within that subject where they exist, e.g. PDX History of science, QRAX history of Religion or KCZ Economic History
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NHA History: theory and methods
NHB General and world history
Class here: encyclopaedias, dictionaries or timelines of world history. Use for: works that take a truly global view of history and that do not fit into a more precise history category. For general or global history of specific topics, use with an appropriate subject category.
Prefer: ‘history of’ categories from within that subject where they exist
1.4
NHC Ancient history
Use for: works about ancient history according to the concept or notion of ‘ancient history’ as applied to the particular region and subject of the work. Use with: other NH* codes and relevant PLACE 1* and TIME PERIOD 3* Qualifiers as appropriate
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NHD European history
Use with: relevant PLACE 1D* or 1QB* and TIME PERIOD 3* Qualifiers as appropriate
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NHF Asian history
Use with: relevant PLACE 1F* or 1QB* and TIME PERIOD 3* Qualifiers as appropriate
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NHG Middle Eastern history
Use with: relevant PLACE 1FB* or 1QB* and TIME PERIOD 3* Qualifiers as appropriate
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NHH African history
Use with: relevant PLACE 1H* or 1QB* and TIME PERIOD 3* Qualifiers as appropriate
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NHK History of the Americas
Use with: relevant PLACE 1K* or 1QB* and TIME PERIOD 3* Qualifiers as appropriate
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NHM Australasian and Pacific history
Class here: Histories of Oceania, Melanesia, Micronesia, Polynesia, etc. Use with: relevant PLACE 1M* or 1QB* and TIME PERIOD 3* Qualifiers as appropriate
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NHQ History of other geographical groupings and regions
Class here: Antarctica, the Polar regions, isolated oceanic islands etc. Use for: works about areas not covered by other NH* codes or trans-continental or multi-location histories. Use with: relevant PLACE 1Q* and TIME PERIOD 3* Qualifiers as appropriate
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NHT History: specific events and topics
Use all NHT* codes with: regional NH* codes where possible and other subject codes to give more detail and also PLACE 1* and/or TIME PERIOD 3* Qualifiers as appropriate
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NHW Military history
Use with: relevant PLACE 1* and TIME PERIOD 3* Qualifiers as appropriate.
See also: JW* Warfare and defence and its subcategories

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