| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
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| alkane to Alverstone, Richard Everard Webster, 1st Viscount |
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| alkane |
| Al Karak |
| alkene |
| Al-Khowarizmi |
| Alkmaar |
| Al Kufah |
| Al Kut |
| alkyl group |
| alkyne |
| Allah |
| Allahabad |
| Allais, Maurice |
| All-American Canal |
| Allan, Sir Hugh |
| Allawi, Ayad |
| Allegheny |
| Allegheny Plateau |
| Allegheny Portage Railroad National Historic Site |
| allegiance |
| allegory |
| allele |
| Alleluia |
| Allen, Ethan |
| Allen, Frederick Lewis |
| Allen, Gracie |
| Allen, Hervey |
| Allen, Ira |
| Allen, James Lane |
| Allen, Richard |
| Allen, William |
| Allen, Woody |
| Allen, Bog of |
| Allen, Lough |
| Allenby, Edmund Henry Hynman Allenby, 1st Viscount |
| Allende, Ignacio |
| Allende, Isabel |
| Allende Gossens, Salvador |
| Allen Park |
| Allenstein |
| Allentown |
| Alleppey |
| allergy |
| Allerton, Isaac |
| Alleyn, Edward |
| Alliance |
| Alliance for Progress |
| Allier |
| alligator |
| alligator pear |
| Alliluyeva, Svetlana |
| Allingham, Margery |
| Allingham, William |
| Allison, William Boyd |
| alliteration |
| Alliterative Revival |
| Alloa |
| Allobroges |
| allograft |
| Allon-bachuth |
| Allosaurus |
| allotropy |
| Allouez, Claude Jean |
| Alloway |
| alloy |
| Allport, Gordon W. |
| All Saints Bay |
| All Saints’ Day |
| All Souls’ Day |
| allspice |
| Allston, Washington |
| Alma |
| Alma-Ata |
| Almagest |
| Almagro, Diego de |
| almanac |
| Alma-Tadema, Sir Lawrence |
| Almaty |
| Almeida, Antonio José de |
| Almeida, Francisco de |
| Almeida Garrett, João Batista de |
| Almelo |
| Almería |
| Almirante Brown |
| Almodóvar, Pedro |
| Almohads |
| Almon |
| almond |
| Almon-diblathaim |
| Almoravids |
| Almquist, Carl Jonas Love |
| almug |
| Aloadae |
| alod |
| aloe |
| aloes |
| Aloidae |
| Alompra |
| Alonso, Alicia |
| Alonso, Dámaso |
| alopecia |
| Alor Setar |
| Alost |
| Aloysius, Saint |
| alpaca |
| Alp Arslan |
| Alpena |
| alpenhorn |
| Alpes-de-Haute-Provence |
| Alpes-Maritimes |
| alphabet |
| Alpha Centauri |
| Alpha Crucis |
| Alphaeus |
| alphanumeric |
| alpha particle |
| Alpheus, in Greek mythology |
| Alpheus, river, Greece |
| Alphonse |
| Alphonsine tables |
| Alphonso |
| Alphonsus Liguori, Saint |
| alphorn |
| alpine plants |
| Alps |
| Alps, Australian |
| Als |
| Alsace |
| Alsace-Lorraine |
| Alsen |
| alsike |
| Alsop, Joseph |
| Alsop, Richard |
| Alta California |
| Altadena |
| Altai |
| Altaic |
| Altair |
| Altai Republic |
| Altai Territory |
| Altamira |
| Altamirano, Ignacio Manuel |
| Altamira y Crevea, Rafaél |
| Altamura |
| altar |
| Al-taschith |
| Altay |
| Altay Republic |
| Altay Territory |
| altazimuth coordinate system |
| altazimuth mounting |
| Altdorf |
| Altdorfer, Albrecht |
| Altenburg |
| alternating current |
| alternation of generations |
| alternative medicine |
| alternator |
| Altgeld, John Peter |
| althaea |
| Althing |
| Althorp, John Charles Spencer, Viscount |
| Altichiero da Zevio |
| altimeter |
| altiplano |
| altitude |
| altitude sickness |
| Altman, Robert |
| Altman, Sidney |
| alto |
| Alto Adige |
| Altoaguirre, Manuel |
| altocumulus |
| Alton |
| Altona |
| Altoona |
| altostratus |
| Altötting |
| Altrincham |
| altruism |
| Altus |
| Al Ubayyid |
| alum |
| alumina |
| aluminum |
| aluminum oxide |
| alundum |
| Alush |
| Alva, Fernando Álvarez de Toledo, duque de |
| Alvah |
| Alvand |
| Alvarado, Juan Bautista |
| Alvarado, Pedro de |
| Alvarez, A. |
| Álvarez, José |
| Álvarez, Juan |
| Alvarez, Luis Walter |
| Alvear, Carlos María de |
| Alvear, Marcelo Torcuato de |
| alveolus |
| Alverstone, Richard Everard Webster, 1st Viscount |
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| | | The Columbia Encyclopedia, Sixth Edition. Copyright © 2007 Columbia University Press. |
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