Antiquities 273,997 Art 176,809 Agriculture 169,522 Architecture 166,448 African Americans 101,565 Armed Forces 97,121 Appropriations and expenditures 87,536 Art, Modern 63,921 American poetry 55,844 Artists 54,823 Accounting 51,490 American literature 47,584 Administration 45,234 Art collections 40,939 Architecture, Domestic 40,440 Aesthetics 40,043 Archives 39,625 Arabic language 39,333 Artificial intelligence 38,970 Advertising 38,813 American 34,868 Anthropology 34,221 Astronomy 33,822 Architecture, Modern 33,685 Arab-Israeli conflict 31,319 Attitudes 30,854 Archaeology 30,841 Analysis 30,553 Animals 29,963 Arabic poetry 29,367 Administrative agencies 28,711 Arts 28,592 Aspect social 28,405 Agriculture and state 27,973 Actors 27,640 Authorship 27,406 Appreciation 25,317 Arabic literature 25,269 Aeronautics 24,996 Administrative law 24,559 Arabic fiction 24,477 Architects 23,203 Anatomy 22,353 Authors, American 22,303 Automobiles 22,269 Anniversaries, etc 21,506 Air 21,127 AIDS (Disease) 21,027 Artists' books 20,730 Auditing 20,525 Antisemitism 20,132 Authors, French 19,892 Authors, German 19,805 Anecdotes 19,775 Atrocities 19,759 Airplanes 19,695 Administrative and political divisions 18,016 Automation 17,824 Antiquities, Roman 17,105 Application software 16,842 American fiction 16,743 American drama 16,590 Authors, English 16,202 Autonomy and independence movements 15,885 Art museums 15,733 Astrology 15,674 Authors 15,609 Art, Italian 15,084 Aging 15,001 Apologetics 14,741 Atlases 14,397 Authors, Russian 14,152 Aspect religieux 14,033 Alcoholism 13,918 Antitrust law 13,753 Accidents 13,750 Artificial Intelligence 13,502 Amusements 13,477 Aims and objectives 13,354 Aeronautics, Commercial 13,287 Aspect politique 13,273 Assassination 13,226 Art, American 13,085 Arithmetic 12,827 Almanacs, English 12,667 Awards 12,499 Authors, Chinese 12,492 Agricultural laborers 12,130 African American authors 11,870 Alumni and alumnae 11,746 Aufsatzsammlung 11,701 Algebra 11,634 Adult education 11,620 Abortion 11,491 Americans 11,168 Art, Chinese 11,066 Antislavery movements 10,980 Alcohol 10,971 Algorithms 10,741 Art and society 10,549