Antiquities 273,687 Art 176,496 Agriculture 169,415 Architecture 166,257 African Americans 101,442 Armed Forces 97,054 Appropriations and expenditures 87,515 Art, Modern 63,836 American poetry 55,460 Artists 54,715 Accounting 51,433 American literature 47,552 Administration 45,164 Art collections 40,886 Architecture, Domestic 40,395 Aesthetics 39,992 Archives 39,593 Arabic language 39,280 Artificial intelligence 38,796 Advertising 38,778 American 34,862 Anthropology 34,184 Astronomy 33,789 Architecture, Modern 33,674 Arab-Israeli conflict 31,274 Attitudes 30,812 Archaeology 30,774 Analysis 30,531 Animals 29,902 Arabic poetry 29,290 Administrative agencies 28,701 Arts 28,530 Aspect social 28,081 Agriculture and state 27,935 Actors 27,605 Authorship 27,367 Appreciation 25,277 Arabic literature 25,191 Aeronautics 24,985 Administrative law 24,543 Arabic fiction 24,324 Architects 23,174 Anatomy 22,336 Authors, American 22,284 Automobiles 22,254 Anniversaries, etc 21,482 Air 21,123 AIDS (Disease) 21,011 Artists' books 20,699 Auditing 20,512 Antisemitism 20,107 Authors, French 19,869 Authors, German 19,791 Anecdotes 19,765 Atrocities 19,726 Airplanes 19,689 Administrative and political divisions 18,009 Automation 17,783 Antiquities, Roman 17,094 Application software 16,729 American fiction 16,552 American drama 16,484 Authors, English 16,184 Autonomy and independence movements 15,834 Art museums 15,717 Astrology 15,667 Authors 15,583 Art, Italian 15,063 Aging 14,971 Apologetics 14,735 Atlases 14,395 Authors, Russian 14,131 Alcoholism 13,911 Aspect religieux 13,863 Antitrust law 13,751 Accidents 13,729 Amusements 13,471 Artificial Intelligence 13,462 Aims and objectives 13,329 Aeronautics, Commercial 13,279 Assassination 13,202 Aspect politique 13,114 Art, American 13,072 Arithmetic 12,821 Almanacs, English 12,667 Awards 12,488 Authors, Chinese 12,469 Agricultural laborers 12,122 African American authors 11,848 Alumni and alumnae 11,720 Aufsatzsammlung 11,706 Algebra 11,625 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 10,529