Previous versions of Thema are still available 1.3 1.2 1.1 1.0.
Browse the Thema subject categories hierarchy, or search for a specific term within the hierarchy.
|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
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
|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
|NHTG||Genealogy, heraldry, names and honours
See also: GTT Flags, emblems, symbols, logos, VFXB1 Baby names: guides for parents, WQY Family history, tracing ancestors
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