b'Key HeadingsCertain headings in the Sears List have been chosen to serve as examples, at which the subdivisionsparticularly applicable to certain categories of headings are given. If a subdivision is provided underthe key heading, it may also be used under any heading of that type.Authors: Shakespeare, William, 1564-1616 (to illustrate the subdivisions that may be usedunder any voluminous author, and in some cases other individual persons)Ethnic groups: Native Americans (to illustrate the subdivisions that may be used under anyethnic group or native people)Languages: English language (to illustrate the subdivisions that may be used under anylanguage or group of languages)Literature: English literature (to illustrate the subdivisions that may be used under anyliterature)Places: United StatesOhioChicago (Ill.) (to illustrate the subdivisionsexcept for historical periodsthatmay be used under any country, state, or city)Public figures: PresidentsUnited States (to illustrate the subdivisions that may be usedunder the presidents, prime ministers, governors, and rulers of any country, state, etc., and in somecases under the names of individual presidents, prime ministers, etc.)Wars: World War, 1939-1945 (to illustrate the subdivisions that may be used under any war,and in some cases individual battles)A-55'