Thema Subject Categories 1.4

Previous versions of Thema are still available 1.3 1.2 1.1 1.0.

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Notation Category heading Add Mod ?
3 Time period qualifiers
Use TIME PERIOD 3* Qualifier codes WITH appropriate subject codes for: indicating the time period range of a works content, such as the period covered by an art book (A*), a history book (N*), a memoir or biography (DN*), historical fiction (FV*), a children’s history book (YNH*), etc. National extensions (i.e. 3*-xx- format codes, where ‘xx’ indicates a country code) are for specific named periods of time that are important in particular markets but do not necessarily fit neatly into the structure of the general TIME PERIOD qualifiers. All national extensions are sub-categories of a core time period code, so can be mapped back to a standard period. National extensions can be assigned by any user, and are not exclusive to users in the indicated country. TIME PERIOD qualifiers are usually used in conjunction with PLACE 1* qualifiers. (Specific historical events or individual years would be conveyed in detail elsewhere in a products metadata, for example by the title, the table of contents, the descriptive text or keywords). DO NOT USE: for indicating the year of an annual or road atlas or travel guide or the year a work was originally published in, (this is described in other metadata). DO NOT USE: code “3” itself, but select appropriate specific qualifiers from section 3*
3M c 1500 onwards to present day
3MP 20th century, c 1900 to c 1999
3MPQ Later 20th century c 1950 to c 1999
3MPQM c 1950 to c 1959
3MPQS c 1960 to c 1969
3MPQV c 1970 to c 1979
3MPQX c 1980 to c 1989
3MPQZ c 1990 to c 1999
3MPQ-DE-J c 1945 to c 1990 (the Cold War period) 1.4
3MPQ-ES-A c 1940 to 1975 (period of Franco’s dictatorship) 1.4
3MPQ-ES-B 1975 to c 1982 (period of Spanish Democratic transition) 1.4
3MPQ-ES-C c 1982 to present (Spanish democratic period) 1.4
3MPQ-IE-T c 1968 to c 1999 (period of The Troubles in Northern Ireland) 1.2.6 1.4
3MPQ-IT-V c 1950 to c 1968 (period of reconstruction, economic miracle, social and political transformations in Italy) 1.4
3MPQ-JP-B 1945–1989 (Japanese post-war Showa period) 1.3.3
3MPQ-PA-A 1968–1989 (period of the Panamanian Military Dictatorship) 1.3.2 1.4
3MPQ-PL-A 1947–1989 (period of the Polish People’s Republic) 1.3.2 1.4

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