Thema Subject Categories 1.3 NEW

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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
1.1
3C BCE period – Protohistory
3K CE period up to c 1500
3M c 1500 onwards to present day

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