Antiquities 273,208 Art 176,231 Agriculture 169,163 Architecture 165,946 African Americans 101,285 Armed Forces 96,914 Appropriations and expenditures 87,518 Art, Modern 63,729 American poetry 55,319 Artists 54,587 Accounting 50,500 American literature 47,495 Administration 45,106 Art collections 40,830 Architecture, Domestic 40,340 Aesthetics 39,944 Archives 39,544 Arabic language 39,188 Advertising 38,760 Artificial intelligence 38,583 American 34,866 Anthropology 34,169 Astronomy 33,774 Architecture, Modern 33,659 Arab-Israeli conflict 31,176 Attitudes 30,776 Archaeology 30,719 Analysis 30,533 Animals 29,712 Arabic poetry 29,176 Administrative agencies 28,684 Arts 28,483 Agriculture and state 27,896 Actors 27,539 Aspect social 27,439 Authorship 27,323 Appreciation 25,217 Arabic literature 25,083 Aeronautics 24,976 Administrative law 24,500 Arabic fiction 24,139 Architects 23,120 Anatomy 22,318 Authors, American 22,228 Automobiles 22,200 Anniversaries, etc 21,523 Air 21,112 AIDS (Disease) 20,987 Artists' books 20,651 Auditing 20,265 Antisemitism 20,050 Authors, French 19,837 Authors, German 19,805 Anecdotes 19,756 Atrocities 19,684 Airplanes 19,674 Administrative and political divisions 18,000 Automation 17,748 Antiquities, Roman 17,057 Application software 16,694 American fiction 16,514 American drama 16,469 Authors, English 16,175 Autonomy and independence movements 15,793 Art museums 15,708 Astrology 15,663 Authors 15,524 Art, Italian 15,043 Apologetics 14,732 Aging 14,654 Atlases 14,391 Authors, Russian 14,082 Alcoholism 13,899 Antitrust law 13,729 Accidents 13,703 Aspect religieux 13,456 Artificial Intelligence 13,439 Aims and objectives 13,318 Amusements 13,295 Aeronautics, Commercial 13,266 Assassination 13,176 Art, American 13,049 Aufsatzsammlung 12,994 Arithmetic 12,816 Aspect politique 12,760 Almanacs, English 12,665 Awards 12,472 Authors, Chinese 12,457 Agricultural laborers 12,102 African American authors 11,834 Alumni and alumnae 11,713 Algebra 11,628 Adult education 11,610 Abortion 11,460 Americans 11,133 Art, Chinese 11,029 Antislavery movements 10,968 Alcohol 10,961 Algorithms 10,733 Art and society 10,508