The subdivisions of 821 can be derived from common auxiliaries of language =1/=9 (Table 1c) by substituting a point for the equals sign, e.g. 821.111 English literature derives from =111 English language. Only main language groups of literature are shown here and literature in English to provide an example. Literature schedules are fully faceted and one can combine facets of language, place, time, special auxiliaries of literary form or periods, or special auxiliaries for theory and study of literature for any given language, in the way that is best suited to a particular need

821.111(540)-1 Indian English poetry

821.111(540)-3=112.2 Indian English fiction, (translated) in German

821.111`04 Mediaeval English literature

821.112.2`04-1 Mediaeval German poetry

821.133.1(091) History of French literature

821.134.2`04.09 Mediaeval Spanish literary studies, criticism

821.922-1(082) Esperanto poetry, an anthology