Antiquities 273,059 Art 176,090 Agriculture 168,998 Architecture 165,874 African Americans 101,258 Armed Forces 96,890 Appropriations and expenditures 87,511 Art, Modern 63,704 American poetry 55,303 Artists 54,557 Accounting 50,497 American literature 47,484 Administration 45,078 Art collections 40,813 Architecture, Domestic 40,322 Aesthetics 39,919 Archives 39,532 Arabic language 39,171 Advertising 38,754 Artificial intelligence 38,552 American 34,853 Anthropology 34,147 Astronomy 33,769 Architecture, Modern 33,652 Arab-Israeli conflict 31,161 Attitudes 30,768 Archaeology 30,692 Analysis 30,531 Animals 29,694 Arabic poetry 29,128 Administrative agencies 28,684 Arts 28,457 Agriculture and state 27,885 Actors 27,528 Authorship 27,305 Aspect social 27,301 Appreciation 25,205 Arabic literature 25,067 Aeronautics 24,972 Administrative law 24,489 Arabic fiction 24,117 Architects 23,113 Anatomy 22,314 Authors, American 22,221 Automobiles 22,196 Anniversaries, etc 21,519 Air 21,112 AIDS (Disease) 20,985 Artists' books 20,644 Auditing 20,261 Antisemitism 20,034 Authors, French 19,836 Authors, German 19,798 Anecdotes 19,758 Atrocities 19,682 Airplanes 19,674 Administrative and political divisions 17,997 Automation 17,742 Antiquities, Roman 17,048 Application software 16,693 American fiction 16,505 American drama 16,466 Authors, English 16,165 Autonomy and independence movements 15,778 Art museums 15,693 Astrology 15,662 Authors 15,519 Art, Italian 15,042 Apologetics 14,731 Aging 14,649 Atlases 14,386 Authors, Russian 14,079 Alcoholism 13,899 Antitrust law 13,728 Accidents 13,702 Artificial Intelligence 13,438 Aspect religieux 13,420 Aims and objectives 13,314 Amusements 13,295 Aeronautics, Commercial 13,265 Assassination 13,173 Art, American 13,042 Aufsatzsammlung 12,887 Arithmetic 12,813 Aspect politique 12,703 Almanacs, English 12,665 Awards 12,469 Authors, Chinese 12,424 Agricultural laborers 12,085 African American authors 11,828 Alumni and alumnae 11,712 Algebra 11,624 Adult education 11,607 Abortion 11,457 Americans 11,133 Art, Chinese 11,021 Antislavery movements 10,969 Alcohol 10,960 Algorithms 10,732 Art and society 10,499