Antiquities 273,677 Art 176,489 Agriculture 169,413 Architecture 166,252 African Americans 101,440 Armed Forces 97,041 Appropriations and expenditures 87,510 Art, Modern 63,832 American poetry 55,453 Artists 54,710 Accounting 51,428 American literature 47,551 Administration 45,165 Art collections 40,883 Architecture, Domestic 40,396 Aesthetics 39,995 Archives 39,591 Arabic language 39,280 Artificial intelligence 38,794 Advertising 38,777 American 34,867 Anthropology 34,186 Astronomy 33,788 Architecture, Modern 33,674 Arab-Israeli conflict 31,274 Attitudes 30,815 Archaeology 30,774 Analysis 30,531 Animals 29,898 Arabic poetry 29,282 Administrative agencies 28,703 Arts 28,530 Aspect social 28,076 Agriculture and state 27,935 Actors 27,603 Authorship 27,366 Appreciation 25,278 Arabic literature 25,178 Aeronautics 24,985 Administrative law 24,542 Arabic fiction 24,318 Architects 23,173 Anatomy 22,336 Authors, American 22,282 Automobiles 22,252 Anniversaries, etc 21,481 Air 21,123 AIDS (Disease) 21,013 Artists' books 20,698 Auditing 20,512 Antisemitism 20,104 Authors, French 19,866 Authors, German 19,791 Anecdotes 19,765 Atrocities 19,722 Airplanes 19,689 Administrative and political divisions 18,007 Automation 17,783 Antiquities, Roman 17,094 Application software 16,729 American fiction 16,550 American drama 16,484 Authors, English 16,183 Autonomy and independence movements 15,831 Art museums 15,716 Astrology 15,667 Authors 15,584 Art, Italian 15,062 Aging 14,970 Apologetics 14,736 Atlases 14,394 Authors, Russian 14,131 Alcoholism 13,910 Aspect religieux 13,854 Antitrust law 13,750 Accidents 13,729 Amusements 13,471 Artificial Intelligence 13,463 Aims and objectives 13,328 Aeronautics, Commercial 13,278 Assassination 13,200 Aspect politique 13,111 Art, American 13,072 Arithmetic 12,820 Almanacs, English 12,666 Awards 12,483 Authors, Chinese 12,468 Agricultural laborers 12,121 African American authors 11,848 Alumni and alumnae 11,721 Aufsatzsammlung 11,716 Algebra 11,626 Adult education 11,615 Abortion 11,483 Americans 11,156 Art, Chinese 11,042 Antislavery movements 10,976 Alcohol 10,969 Algorithms 10,731 Art and society 10,528