Thema Subject Categories 1.4

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.

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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
1.4
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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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
1.3
NHTB Social and cultural history
Use with: other subject codes, especially J* codes, to indicate what branch of, or topic in, social or cultural history the work is about, for example, for labour history use with JHBL, or JBSF1 for women’s history
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NHTD Oral history
NHTF History: plagues, diseases etc
Class here: the Black Death, epidemics and pandemics in history.
See also: MBX History of medicine
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NHTG Genealogy, heraldry, names and honours
See also: GTT Flags, emblems, symbols, logos, VFXB1 Baby names: guides for parents, WQY Family history, tracing ancestors
NHTK Industrialisation and industrial history
Class here: industrial or technological revolutions, impact of industrial or technological changes on society.
See also: KJZ History of specific companies / corporate history
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NHTM Maritime history
Class here: Nautical histories of seafaring, sailors, piracy, whaling, fishing, navigation, exploration, maritime trade, shipping, sea-related communities, etc. Use for: any historical aspect of human interaction with or activity at sea
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NHTP Historical geography
NHTQ Colonialism and imperialism
Class here: colonisation, studies of colonies or empires.
See also: NHTR National liberation and independence
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NHTR National liberation and independence
Class here: decolonisation. Use for: works about achieving independence, or histories of newly independent or postcolonial societies
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NHTS Slavery and abolition of slavery
Use for: works about any form or aspect of historical slavery in different societies, cultures or regions
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NHTT Invasion, conquest and occupation 1.4
NHTV Revolutions, uprisings, rebellions
See also: JPWQ Revolutionary groups and movements
NHTW Cold wars and proxy conflicts
Class here: The Cold War, phoney wars. Use for: works that examine conflicts between nations that do not involve direct military action but are pursued primarily through economic and political actions, propaganda, espionage or proxy wars waged by surrogates
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NHTX Violence, intolerance and persecution in history
Class here: Purges, pogroms, violent repression, cruelties, atrocities, massacres etc. Use for: works that examine these themes in history, aspects of these topics or specific events in different societies, cultures or regions
1.4
NHTZ Genocide and ethnic cleansing

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