Thema Subject Categories 1.3

Previous versions of Thema are still available 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 ?
3 Time period qualifiers
DO NOT USE “3” on individual books, but select qualifiers from section 3* as appropriate
3B Prehistory
Use for: (3B* codes) may be used for different time periods depending on the geographical area
3BR Iron Age
Class here: Early, Middle & Late Iron Ages

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