b'Some Difficult Areas of Application / Wars and EventsMaterials about the depiction of historical persons in drama, fiction, or poetry are entered under thepersons name with the subdivision In literature, such as Napoleon I, Emperor of the French,1769-1821In literature. Materials about the depiction of a particular war in drama, fiction, orpoetry are entered under the heading for the war with the subdivision Literature and the war, such asWorld War, 1939-1945Literature and the war.WARS AND EVENTSCatalogers are often called upon to formulate headings as needed for wars and current events, whenthose wars or events generate books and other library materials. Wars fought between two or morenations are given a name, followed by a date or dates, as appropriate, such as War of 1812;Israel-Arab War, 1967; World War, 1939-1945; etc. Civil wars, insurrections, and invasions areentered under the history of the country involved (following the dates, as with other historicalperiods), such as United StatesHistory1861-1865, Civil War; CubaHistory1961,Invasion; etc.Events of short duration, including battles, are dealt with as isolated topics rather than as periods ina countrys history. Events that have names are given a heading for the name, followed by the place,and then by the date, such as Tiananmen Square Incident, Beijing (China), 1989. Battles areentered under the name of the battle, but in the inverted form, with the place of the battle qualifiedas needed, such as Hastings (East Sussex, England), Battle of, 1066. Recurring events, such asgames, festivals, etc., are given the recurring name, followed by the date, with the place inparentheses, if the place changes, such as Olympic Games, 1996 (Atlanta, Ga.). Unnamed events,such as individual tornadoes, are entered under the kind of event subdivided by the place of theevent, such as TornadoesMoore (Okla.).NATIVE AMERICANSThe heading Native Americans may be subdivided geographically by continent, region, country,state, or city. Headings for individual nations or tribes of Native Americans may be established asneeded according to the traditional formulation, such as Aztecs and Navajo Indians. Headings forclasses of persons among the Native Americans, such as Women or Children, and for thingsdistinctly ethnic, such as Medicine or Music, are expressed as phrase headings, such as NativeAmerican women, Native American children, Native American medicine, and NativeAmerican music. Topics not of an ethnic nature, such as Housing or Social conditions, areexpressed as subdivisions under Native Americans, such as Native AmericansHousing andNative AmericansSocial conditions.GOVERNMENT POLICYFollowing the principle that subject headings ought to reflect the common usage, subject headingsrelating to government policy are phrase headings when they apply to something general or whenA-40'