Antiquities 273,276 Art 176,233 Agriculture 169,203 Architecture 165,982 African Americans 101,326 Armed Forces 96,937 Appropriations and expenditures 87,519 Art, Modern 63,757 American poetry 55,369 Artists 54,608 Accounting 50,512 American literature 47,507 Administration 45,116 Art collections 40,843 Architecture, Domestic 40,344 Aesthetics 39,949 Archives 39,552 Arabic language 39,207 Advertising 38,765 Artificial intelligence 38,612 American 34,867 Anthropology 34,172 Astronomy 33,776 Architecture, Modern 33,662 Arab-Israeli conflict 31,182 Attitudes 30,781 Archaeology 30,716 Analysis 30,529 Animals 29,714 Arabic poetry 29,186 Administrative agencies 28,693 Arts 28,500 Agriculture and state 27,909 Actors 27,547 Aspect social 27,488 Authorship 27,326 Appreciation 25,231 Arabic literature 25,092 Aeronautics 24,979 Administrative law 24,517 Arabic fiction 24,151 Architects 23,131 Anatomy 22,319 Authors, American 22,236 Automobiles 22,207 Anniversaries, etc 21,537 Air 21,113 AIDS (Disease) 20,990 Artists' books 20,655 Auditing 20,267 Antisemitism 20,058 Authors, French 19,840 Authors, German 19,800 Anecdotes 19,760 Atrocities 19,691 Airplanes 19,679 Administrative and political divisions 18,002 Automation 17,754 Antiquities, Roman 17,060 Application software 16,695 American fiction 16,521 American drama 16,475 Authors, English 16,188 Autonomy and independence movements 15,798 Art museums 15,712 Astrology 15,664 Authors 15,530 Art, Italian 15,047 Apologetics 14,732 Aging 14,658 Atlases 14,390 Authors, Russian 14,087 Alcoholism 13,901 Antitrust law 13,741 Accidents 13,710 Aspect religieux 13,490 Artificial Intelligence 13,439 Aims and objectives 13,323 Amusements 13,296 Aeronautics, Commercial 13,270 Assassination 13,183 Art, American 13,052 Arithmetic 12,816 Aufsatzsammlung 12,804 Aspect politique 12,794 Almanacs, English 12,665 Awards 12,473 Authors, Chinese 12,456 Agricultural laborers 12,109 African American authors 11,836 Alumni and alumnae 11,715 Algebra 11,625 Adult education 11,611 Abortion 11,462 Americans 11,136 Art, Chinese 11,032 Antislavery movements 10,969 Alcohol 10,960 Algorithms 10,733 Art and society 10,509