All articles A–Z
519,064 articles
American Association of Colleges of Nursing
The American Association of Colleges of Nursing (AACN), founded in 1969, represents more than 890 US nursing schools and publishes the Essentials competency framework for nursing education.
American Association of Critical-Care Nurses
American Association of Critical-Care Nurses (AACN), founded 1969, is a 501(c)(3) professional association of 100,000+ acute and critical care nurses, administering CCRN and related certifications, publishing nursing journals, and setting Healthy Work Environment standards; distinct from the Colleges of Nursing AACN.
American Association of Petroleum Geologists
The American Association of Petroleum Geologists is an international nonprofit professional society for petroleum and energy geoscientists, founded in 1917 and headquartered in Tulsa, Oklahoma.
American Association of Physicists in Medicine
The American Association of Physicists in Medicine (AAPM) is a nonprofit scientific and professional society for medical physicists, founded in 1958 with over 8,000 members.
American Association of Physics Teachers
The American Association of Physics Teachers (AAPT) is a US professional society, founded in 1930, serving physics educators through journals, national meetings, and 46 local sections.
American Association of Variable Star Observers
The American Association of Variable Star Observers (AAVSO), founded in 1911 by William Tyler Olcott, coordinates amateur and professional astronomers in observing variable stars worldwide.
American Association of Veterinary Parasitologists
American Association of Veterinary Parasitologists (AAVP), founded 1956, a 501(c)(3) US scientific organization of 450+ members studying animal parasites; publishes Veterinary Parasitology, holds annual meetings, awards, and student grants.
American Athletic Conference
The American Athletic Conference (American Conference since 2025) is an NCAA Division I FBS conference formed in 2013 from Big East football schools; 15 members, Irving, Texas headquarters, ESPN deal through 2033-34.
American Authors
American Authors: Brooklyn-based American pop-rock band formed by Berklee classmates Zac Barnett, James Adam Shelley, Dave Rublin, and Matt Sanchez; known for "Best Day of My Life" and the 2014 gold album Oh, What a Life.
American Automobile Association
The American Automobile Association (AAA) is a not-for-profit federation of motor clubs in the United States and Canada, founded in Chicago in 1902, that provides roadside assistance, travel, insurance, and advocacy.
American Aviation Historical Society
The American Aviation Historical Society (AAHS) is an organization founded in 1956 to preserve American aviation history, publishing the quarterly AAHS Journal and holding roughly one million photographs.
American Axle & Manufacturing
American Axle & Manufacturing was a Detroit automotive driveline supplier founded in 1994 by Richard E. Dauch from five former General Motors plants, renamed Dauch Corporation in 2026.
American badger
American badger (Taxidea taxus), a fossorial mustelid unique to North America, ranging Alberta to Mexico. IUCN Least Concern globally, but Canadian populations endangered; digs burrows up to 10 m long.
American Ballet Theatre
American Ballet Theatre (ABT), founded 1939 as Ballet Theatre by Richard Pleasant and Lucia Chase, is a New York ballet company renamed ABT in 1957, named America's National Ballet Company by Congress in 2006, first US dance company to perform in the Soviet Union (1960).
American Bandstand
American Bandstand: American music and dance TV show, 1952–1989, begun as Bandstand on WFIL-TV Philadelphia, hosted by Bob Horn then Dick Clark, national on ABC from August 5, 1957; first national daily teen program, later criticized for racially segregated studio audiences.
American Bantam
American Bantam was an American automaker founded in 1935 in Butler, Pennsylvania, that designed and built the first Jeep prototype for the U.S. Army in 1940.
American Bar Association
American Bar Association, founded 1878 in Saratoga Springs, is the voluntary national bar association of US lawyers, publisher of the Model Rules of Professional Conduct and, since 1952, the Department of Education-recognized accreditor of J.D. law school programs.
American Bar Association Section of International Law
The American Bar Association Section of International Law (ABA SIL) is an ABA section, dating to 1933, with over 50 committees, policy reports, and the journal The International Lawyer.
American Basketball Association
American Basketball Association (ABA), original 1967-1976 rival of the NBA; founded with commissioner George Mikan; introduced the three-point shot and red-white-blue ball; merged into the NBA June 17, 1976, with four teams absorbed. Distinct from the relaunched ABA minor league of 1999.
American Basketball Association (2000–present)
American Basketball Association (ABA), relaunched 2000 by Joe Newman and Richard P. Tinkham, is a US men's semipro basketball league reviving the 1967-76 ABA name, with 100+ independent teams, NBA-licensed marks, and experimental rules.
American Battery Factory
The American Battery Factory (ABF) is a Utah-based manufacturer of lithium iron phosphate battery cells, building its first gigafactory in Tucson, Arizona, targeted for production in 2028.
American Battery Technology Company
American Battery Technology Company (ABTC) is a Nevada-based battery materials company recycling lithium-ion batteries and extracting lithium, with a recycling plant in McCarran and a large lithium deposit at Tonopah Flats.
American Battle Monuments Commission
The American Battle Monuments Commission (ABMC) is an independent U.S. federal agency, established by Congress in 1923, that maintains American military cemeteries and memorials in foreign countries.
American Beauty (1999 film)
American Beauty (1999) is a DreamWorks comedy-drama, the film debut of director Sam Mendes and writer Alan Ball, starring Kevin Spacey and Annette Bening; it won five Oscars including Best Picture and was later critically reassessed.
American Beauty (album)
American Beauty is the Grateful Dead's fifth studio album, released November 1970, recorded at Wally Heider Studios with producer Stephen Quinn Barncard. The acoustic country-rock follow-up to Workingman's Dead went double platinum and includes Truckin', Ripple, and Friend of the Devil.
American Beauty/American Psycho
American Beauty/American Psycho is Fall Out Boy's sixth studio album, released January 20, 2015 on Island; second post-hiatus LP after Save Rock and Roll, sample-driven pop-rock produced with Jake Sinclair, featuring Centuries, Uma Thurman, and Immortals.
American bison
American bison (Bison bison), also called buffalo, North America's largest land mammal; tens of millions once roamed the plains, near extinction by the 1880s, restored via Yellowstone and conservation herds; US national mammal since 2016.
American Bitch
American Bitch is the third episode of Girls season 6 (HBO, aired February 26, 2017), written by Lena Dunham and directed by Richard Shepard. A bottle episode in which Hannah Horvath confronts novelist Chuck Palmer (Matthew Rhys) over sexual assault allegations; a pre-#MeToo landmark, Emmy-nominated and on Time's 2017 top-ten list.
American black bear
American black bear (Ursus americanus), North America's most common and widespread bear. Omnivorous forest dweller, 100-600 lb, hibernates 3-5 months without eating or urinating; about 750,000 in North America.
American Board of Internal Medicine
American Board of Internal Medicine (ABIM), founded 1936 in Des Moines by ACP and AMA members, is the ABMS nonprofit board certifying internists and 20 subspecialties, with 10-year time-limited certificates and MOC via 10-year exam, LKA, or CMP.