--subdivision Censorship under names of individual persons, individual wars, individual literatures, and topical headings, e.g. Shakespeare, William, 1564-1616--Censorship; World War, 1939-1945--Censorship; English literature--Censorship
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Antichi liberi accettati muratori -- See Freemasons
Here are entered theoretical works on the phenomenon of gravitation, i.e. the attraction between masses anywhere in the universe, and on determinations of the constant of gravitation. Works relating to measurement of the resultant effect of the gravitational attraction and centrifugal repulsion between any body and a planet or other celestial body, including works on earth's gravity are entered under the heading Gravity.
Here are entered works about real people who are admired for their achievements, courage, or noble qualities. Works about fictional heroes who possess abilities beyond those of normal human beings are entered under Superheroes.