CZ:Featured article

Featured Article is an award given weekly to a high-quality Citizendium article.

Formal policy

EC Decision D-2011-014, 28 February 2011:

The welcome page of the Citizendium shall display one or two featured articles.

If no other system of choosing and displaying articles is employed, then at least one article shall be chosen from our Approved articles on a rotating basis and shall thereafter be changed at least once a week.

Remark: This replaces the "Article of the Week" and the "New Draft of the Week" for the time being, or until another feature is installed.

Archive

List of previously featured articles.

Before May 4, 2011, there were two distinct categories of featured articles, which are archived separately.

Featured articles

•  2012 doomsday prophecy [r]: The year that Mayan calendars predicted to be the end of the world. Has become a meme associated with apocalyptic events fueled by booksellers, fearmongers and moviemakers. ^[e] (April 2 — 12, 2014)
•  Mind-body problem [r]: The philosophical and scientific consideration of the relation between conscious mental activity and the underlying physical plant that supports this activity, consisting primarily of the brain, but also involving various sensors throughout the body. ^[e] (March 15 — April 2, 2014)
•  Moral responsibility [r]: A duty or obligation to behave in a 'good' manner and refrain from behaving in a 'bad' manner. ^[e] (March 5 — 15, 2014)
•  Oxytocin [r]: A mammalian hormone that is secreted into the bloodstream from the posterior pituitary gland, and which is also released into the brain where it has effects on social behaviors. ^[e] (February 16 — March 5, 2014)
•  Thylakoid [r]: A system of membranes inside chloroplasts, housing the proteins that carry out the light-dependent reactions of photosynthesis. ^[e] (February 2 — 16, 2014)
•  Hamburger [r]: A sandwich made with a bun containing a patty of ground, cooked meat that is almost always beef, usually served with condiments such as relish, mustard, or ketchup. ^[e] (January 18 — February 2, 2014)
•  Jimmy Page [r]: (b. 9 January 1944) English session guitarist and founder of influential group Led Zeppelin, known for his production techniques and blues influenced lead guitar soloing. ^[e] (January 6 — 18, 2014)
•  Standard argument against free will [r]: An argument proposing a conflict between the possibility of free will and the postulates of determinism and indeterminism. ^[e] (December 21, 2013 — January 6, 2014)
•  Vacuum distillation [r]: The laboratory or industrial-scale distillation of liquids performed at a pressure lower than atmospheric pressure. ^[e] (December 7 — 21, 2013)
•  Evidence-based medicine [r]: The conscientious, explicit and judicious use of current best evidence in making decisions about the care of individual patients. ^[e] (December 1 — 7, 2013)
•  Partial pressure [r]: The pressure which each gas in a gas mixture would have if it alone occupied the same volume at the same temperature. ^[e] (November 21 — December 1, 2013)
•  Subjective-objective dichotomy [r]: The philosophical separation of the world into objects (entities) which are perceived or otherwise presumed to exist as entities, by subjects (observers). ^[e] (November 8 — 21, 2013)
•  Ukiyo-e [r]: A form of Japanese woodblock art of increasing technical complexity, originating in the Edo Period (1600-1868), with variants into the present ^[e] (October 27 — November 8, 2013)
•  Keynesians [r]: Economists who have developed the theory originated by John Maynard Keynes that advocated the use of fiscal policy to maintain economic stability. ^[e] (October 14 — 27, 2013)
•  Iraq War, major combat phase [r]: Add brief definition or description (September 30 — October 14, 2013)
•  Malthusianism [r]: A theory in demography which holds that population expands faster than food supplies and famine will result unless steps are taken to reduce population growth. ^[e] (September 21 — September 30, 2013)
•  Japanese English [r]: English as used by native speakers of Japanese, either for communicating with non-Japanese speakers or commercial and entertainment purposes. Includes vocabulary and usages not found in the native English-speaking world. ^[e] (September 8 — September 21, 2013)
•  Super C [r]: A premium, high-speed intermodal freight train operated by the Atchison, Topeka and Santa Fe Railway from 1968 to 1976. ^[e] (August 31 — September 8, 2013)
•  Ontological pluralism [r]: The doctrine that there are different ways or modes of being ^[e] (August 24 — 31, 2013)
•  Refrigerator car [r]: A piece of railroad rolling stock outfitted with cooling apparatus and designed to carry perishable freight at specific temperatures. ^[e] (August 17 — 24, 2013)
•  San Diegan [r]: One of the named passenger trains of the Atchison, Topeka and Santa Fe Railway that operated between March 27, 1938 and April 30, 1971. ^[e] (August 10 — 17, 2013)
•  William Morris [r]: William Morris (1834-1896) was a writer, a businessman, a pioneer of the Arts and Crafts movement, and an early socialist. ^[e] (August 4 — 10, 2013)
•  Active attack [r]: An attack on a communications system in which the attacker creates, alters, replaces, re-routes or blocks messages; this contrasts with a passive attack in which he only reads them. ^[e] (July 27 — August 4, 2013)
•  Acid rain [r]: Deposition of acidified rain, snow, sleet, hail, gases and particles, and acidified fog and cloud water, due to nitric or sulfuric acid pollution. ^[e] (July 20 — 27, 2013)
•  Accidental release source terms [r]: The mathematical equations that estimate the rate at which accidental releases of air pollutants into the atmosphere may occur at industrial facilities. ^[e] (July 14 — 20, 2013)
•  Mission San Diego de Alcalá [r]: A former religious outpost established in 1769 on the west coast of North America in the present-day State of California by Roman Catholics of the Franciscan Order under the direction of the Spanish crown. ^[e] (July 6 — 14, 2013)
•  Internal-external distinction [r]: A division of an ontology into an internal linguistic framework and external practical questions about the utility of that framework ^[e] (June 29 — July 6, 2013)
• Paula Deen [r]: Add brief definition or description (June 22 — 29, 2013)
•  Battleship [r]: A heavily-armored, warship optimized for fighting other warships using large-caliber guns; certain armor requirements differentiated from cruisers; obsolete by end of World War II. ^[e] (June 15 — 22, 2013)
•  Tauriel [r]: Fictional character from Peter Jackson's feature film adaptation of J. R. R. Tolkien's The Hobbit. ^[e] (June 8 — 15, 2013)
•  Mission Buenaventura-class oiler [r]: A series of twenty-seven of fleet oilers built during World War II for service in the United States Navy. ^[e] (June 1 — 8, 2013)
•  Mission San Juan Capistrano [r]: A former religious outpost established in 1776 on the west coast of North America in the present-day State of California by Roman Catholics of the Franciscan Order under the direction of the Spanish crown. ^[e] (May 25 — June 1, 2013)
•  Amber Neben [r]: Add brief definition or description (May 18 — 25, 2013)
•  Gay community [r]: Add brief definition or description (May 11 — 18, 2013)
•  Edward I [r]: Add brief definition or description (May 4 — 11, 2013)
• Special reconnaissance [r]: Add brief definition or description (April 27 — May 4, 2013)
•  The Miernik Dossier [r]: Add brief definition or description (April 21 — 27, 2013)
•  Margaret Thatcher [r]: Add brief definition or description (April 13 — 21, 2013)
•  Hypertension [r]: Add brief definition or description (April 6 — 13, 2013)
•  Osteoporosis [r]: Add brief definition or description (March 30 — April 6, 2013)
•  Four color theorem [r]: Add brief definition or description (March 24 — 30, 2013)
•  Papacy [r]: Add brief definition or description (March 16 — 24, 2013)
•  Vietnam War [r]: Add brief definition or description (March 9 — 16, 2013)
•  Macroeconomics [r]: Add brief definition or description (March 2 — 9, 2013)
•  Malthusianism [r]: A theory in demography which holds that population expands faster than food supplies and famine will result unless steps are taken to reduce population growth. ^[e] (February 23 — March 2, 2013)
•  Buddhist councils [r]: Add brief definition or description (February 16 — 23, 2013)
•  Synapsid [r]: Add brief definition or description (February 10 — 16, 2013)
•  Cowdray House [r]: Add brief definition or description (February 3 — 10, 2013)
•  Mission San Gabriel Arcángel [r]: Add brief definition or description (January 29 — February 3, 2013)
•  Mission San José [r]: Add brief definition or description (January 19 — 29, 2013)
•  Hypercholesterolemia [r]: Add brief definition or description (January 8 — 19, 2013)
•  Diabetic neuropathy [r]: Add brief definition or description (December 30, 2012 — January 8, 2013)
•  Railroads in California [r]: Add brief definition or description (December 22 — 30, 2012)
•  Robert Burns [r]: Add brief definition or description (December 15 — 22, 2012)
•  Wonders of the world [r]: Add brief definition or description (December 8 — 15, 2012)
•  Silent letters in English [r]: Add brief definition or description (December 1 — 8, 2012)
•  Fiscal policy [r]: Add brief definition or description (November 24 — December 1, 2012)
•  Liquefied natural gas [r]: Add brief definition or description (November 17 — 24, 2012)
•  Industrial cooling tower [r]: Add brief definition or description (November 10 — 17, 2012)
•  Steam generator [r]: Add brief definition or description (November 6 — 10, 2012)
•  Fenske equation [r]: Add brief definition or description (October 28 — November 6, 2012)
•  Pompeii [r]: Add brief definition or description (October 20 — 28, 2012)
•  Potassium in nutrition and human health [r]: Add brief definition or description (October 13 — 20, 2012)
•  Pulmonary embolism [r]: Add brief definition or description (October 6 — 13, 2012)
•  Spanish missions in California [r]: Add brief definition or description (September 30 — October 6, 2012)
•  Set theory [r]: Add brief definition or description (September 24 — 30, 2012)
•  Human rights [r]: Add brief definition or description (September 15 — 24, 2012)
•  Acute coronary syndrome‎ [r]: Add brief definition or description (September 7 — 15, 2012)
•  Emergence (biology) [r]: Add brief definition or description (August 31 — September 7, 2012)
•  Food reward [r]: Add brief definition or description (August 24 — 31, 2012)
•  NMR spectroscopy [r]: Add brief definition or description (August 16 — 24, 2012)
• Dokdo [r]: Add brief definition or description (August 10 — 16, 2012)
•  Digital rights management [r]: Add brief definition or description (August 3 — 10, 2012)
•  Geometric sequence [r]: Add brief definition or description (July 27 — August 3, 2012)
•  Jet engine [r]: Add brief definition or description (July 20 — 27, 2012)
•  Block cipher [r]: Add brief definition or description (July 13 — 20, 2012)
• Higgs boson [r]: Add brief definition or description (July 6 — 13, 2012)
•  Dementia [r]: Add brief definition or description (June 29 — July 6, 2012)
•  Scalawag [r]: Add brief definition or description (June 22 — 29, 2012)
•  Formal fuzzy logic [r]: Add brief definition or description (June 16 — 22, 2012)
•  Politics [r]: Add brief definition or description (June 8 — 16, 2012)
•  King cobra [r]: Add brief definition or description (June 1 — 8, 2012)
•  Buddhism [r]: Add brief definition or description (May 28 — June 1, 2012)
•  Europe [r]: Add brief definition or description (May 19 — 28, 2012)
•  Black mamba [r]: Add brief definition or description (May 11 — 19, 2012)
•  Passive attack [r]: Add brief definition or description (May 5 — 11, 2012)
•  Economics [r]: Add brief definition or description (April 28 — May 5, 2012)
•  Choked flow [r]: Add brief definition or description (April 20 — 28, 2012)
•  RMS Titanic [r]: Add brief definition or description (April 13 — 20, 2012)
•  Karl Marx [r]: Add brief definition or description (April 6 — 13, 2012)
•  ASIMO [r]: Add brief definition or description (March 31 — April 6, 2012)
•  Associated Legendre function [r]: Add brief definition or description (March 23 — 31, 2012)
•  The Social Capital Foundation [r]: Add brief definition or description (March 17 — 23, 2012)
•  History of economic thought [r]: Add brief definition or description (March 9 — 17, 2012)
•  Los Alamos National Laboratory [r]: Add brief definition or description (March 2 — 9, 2012)
•  Diabesity [r]: Add brief definition or description (February 24 — March 2, 2012)
•  Electroconvulsive therapy [r]: Add brief definition or description (February 18 — 24, 2012)
•  International economics [r]: Add brief definition or description (February 10 — 18, 2012)
•  The Clash of Civilizations and the Remaking of World Order [r]: Add brief definition or description (February 3 — 10, 2012)
•  National Institute of Standards and Technology [r]: Add brief definition or description (January 27 — February 3, 2012)
•  Hausdorff dimension [r]: Add brief definition or description (January 20 — 27, 2012)
•  Ideal gas law [r]: Add brief definition or description (January 14 — 20, 2012)
•  Volatility (chemistry) [r]: Add brief definition or description (January 6 — 14, 2012)
•  Alcmaeon of Croton [r]: Add brief definition or description (December 31, 2011 — January 6, 2012)
•  Thomas Jefferson [r]: Add brief definition or description (December 23 — 31, 2011)
•  Linguistics [r]: Add brief definition or description (December 17 — 23, 2011)
•  Kilt [r]: Add brief definition or description (December 9 — 17, 2011)
•  Warfarin [r]: Add brief definition or description (December 2 — 9, 2011)
•  Global warming [r]: Add brief definition or description (November 26 — December 2, 2011)
•  Reuben sandwich [r]: Add brief definition or description (November 19 — 26, 2011)
•  British and American English [r]: Add brief definition or description (November 12 — 19, 2011)
•  Plymouth Colony [r]: Add brief definition or description (November 4 — 12, 2011)
•  Arab Spring [r]: Add brief definition or description (October 28 — November 4, 2011)
•  C (letter) [r]: Add brief definition or description (October 22 — 28, 2011)
•  Fertility (demography) [r]: Add brief definition or description (October 14 — 22, 2011)
•  Geometric series [r]: Add brief definition or description (October 8 — 14, 2011)
•  Eurozone crisis [r]: Add brief definition or description (October 1 — 8, 2011)
•  Destroyer [r]: Add brief definition or description (September 26 — October 1, 2011)
•  Cypherpunk [r]: Add brief definition or description (September 17 — 26, 2011)
•  Dirac delta function [r]: Add brief definition or description (September 10 — 17, 2011)
• Lockheed SR-71 [r]: Add brief definition or description (September 2 — 10, 2011)
•  Clostridium difficile [r]: Add brief definition or description (August 25 — September 2, 2011)
•  Great Recession [r]: Add brief definition or description (August 19 — 25, 2011)
•  Alice Bailey [r]: Add brief definition or description (August 13 — 19, 2011)
•  Félix d'Hérelle [r]: Add brief definition or description (August 7 — 13, 2011)
•  Miller effect [r]: Add brief definition or description (July 29 — August 7, 2011)
•  Gut-brain signalling [r]: Add brief definition or description (July 23 — 29, 2011)
•  Neanderthal [r]: Add brief definition or description (July 13 — 23, 2011)
•  Tennis [r]: Add brief definition or description (July 2 — 13, 2011)
•  Apollo program [r]: Add brief definition or description (June 26 — July 2, 2011)
•  Semiconductor diode [r]: Add brief definition or description (June 17 — 26, 2011)
•  Miller effect [r]: Add brief definition or description (June 11 — 17, 2011)
•  Specific heat ratio [r]: Add brief definition or description (June 3 — 11 2011)
•  Macromolecular chemistry [r]: Add brief definition or description (May 27 — June 3, 2011)
•  Tecum Umam [r]: Add brief definition or description (May 21 — 27, 2011)
•  Heterotaxis [r]: Add brief definition or description (May 4 — 21, 2011)

Articles of the Week (before May 4, 2011)

•  Space (mathematics) [r]: Add brief definition or description
•  World of Warcraft [r]: Add brief definition or description
•  Social capital [r]: Add brief definition or description
•  Richard Condon [r]: Add brief definition or description
•  Natural gas [r]: Add brief definition or description
•  Stairway to Heaven [r]: Add brief definition or description
•  Cryptography [r]: Add brief definition or description
•  English spellings [r]: Add brief definition or description
•  Folk saint [r]: Add brief definition or description
•  Led Zeppelin [r]: Add brief definition or description
•  Locality of reference [r]: Add brief definition or description
•  Rabbit [r]: Add brief definition or description
•  Scarborough Castle [r]: Add brief definition or description (September 3)
•  The Clash of Civilizations and the Remaking of World Order [r]: Add brief definition or description (August 27)
•  Mauna Kea [r]: Add brief definition or description (August 20)
•  Brute force attack [r]: Add brief definition or description (August 13)
•  Cruiser [r]: Add brief definition or description (August 5)
•  The Canterbury Tales [r]: Add brief definition or description (July 30)
•  Milpa agriculture [r]: Add brief definition or description (July 23)
•  Domain Name System [r]: Add brief definition or description (July 16)
•  Scuticaria [r]: Add brief definition or description (July 9)
• Torture [r]: Add brief definition or description (July 2)
•  Miltonia [r]: Add brief definition or description (June 25)
•  Ancient Celtic music [r]: Add brief definition or description (June 18)
•  Bifrenaria [r]: Add brief definition or description (June 11)
•  Halobacterium NRC-1 [r]: Add brief definition or description (June 4)
•  Animal [r]: Add brief definition or description (May 28)
•  Coal [r]: Add brief definition or description (May 21)
•  Johannes Diderik van der Waals [r]: Add brief definition or description (May 7)
•  Scientific method [r]: Add brief definition or description (Apr 14)
•  Korematsu v. United States [r]: Add brief definition or description (Apr 7)
•  Orchid [r]: Add brief definition or description (Mar 31)
•  Oliver Cromwell [r]: Add brief definition or description (Mar 24)
•  Wisconsin v. Yoder [r]: Add brief definition or description (Mar 17)
•  Conventional coal-fired power plant [r]: Add brief definition or description (Mar 10)
•  Battle of the Ia Drang [r]: Add brief definition or description (Mar 3)
•  Ether (physics) [r]: Add brief definition or description (Feb 24)
•  Large-scale trickle filters [r]: Add brief definition or description (11 Feb)
•  Homeopathy [r]: Add brief definition or description (28 Jan)
•  Microeconomics [r]: Add brief definition or description (14 Jan)
•  Speech Recognition [r]: Add brief definition or description (26 Nov)
•  Mashup [r]: Add brief definition or description (19 Nov)
•  Tux [r]: Add brief definition or description (14 Oct)
•  Hydrogen bond [r]: Add brief definition or description (7 Oct)
•  Lead [r]: Add brief definition or description (1 Sept)
•  DNA [r]: Add brief definition or description (8 July)
•  Augustin-Louis_Cauchy [r]: Add brief definition or description (1 July)
•  Vasco da Gama [r]: Add brief definition or description (24 June)
•  Phosphorus [r]: Add brief definition or description (17 June)
•  Crystal Palace [r]: Add brief definition or description (10 June)
•  Gross Domestic Product [r]: Add brief definition or description (3 June)
•  RNA interference [r]: Add brief definition or description (27 May)
•  Latino history [r]: Add brief definition or description (20 May)
•  Navy Grog [r]: Add brief definition or description (13 May)
•  Systems biology [r]: Add brief definition or description (6 May)
•  Steroid [r]: Add brief definition or description (22 Apr)
•  Lebanon [r]: Add brief definition or description (15 Apr)
•  Wheat [r]: Add brief definition or description (7 Apr)
•  Benjamin Franklin [r]: Add brief definition or description (1 Apr)
•  Coherer [r]: Add brief definition or description (25 Mar)
•  U.S. Civil War [r]: Add brief definition or description (18 Mar)
•  Life [r]: Add brief definition or description (11 Mar)
•  Petroleum refining processes [r]: Add brief definition or description (4 Mar)
•  Shirley Chisholm [r]: Add brief definition or description (20 Feb)
•  Telephone Newspaper [r]: Add brief definition or description (4 Feb)
•  Wristwatch [r]: Add brief definition or description (28 Jan)
•  Korean War of 1592-1598 [r]: Add brief definition or description (21 Jan)
•  Andrew Carnegie [r]: Add brief definition or description (11 January 2008)
• Bowling [r]: Add brief definition or description (31 December 2007)
•  Architecture [r]: Add brief definition or description (December 6)
•  Civil society [r]: Add brief definition or description November 29
•  Joan of Arc [r]: Add brief definition or description (November 22)
•  Chemistry [r]: Add brief definition or description (November 15)
•  Albert Gallatin [r]: Add brief definition or description (November 8)
•  Prime number [r]: Add brief definition or description (November 1)
•  Tennis [r]: Add brief definition or description (October 25)
•  Rottweiler [r]: Add brief definition or description (October 18)
•  Theodor Lohmann [r]: Add brief definition or description (October 9)
•  William Shakespeare [r]: Add brief definition or description (October 2)
•  Edward I [r]: Add brief definition or description (September 25)
•  El Tío [r]: Add brief definition or description (September 18)
•  Scotland Yard [r]: Add brief definition or description (September 11)
•  Kilt [r]: Add brief definition or description (September 4)
•  U.S. Electoral College [r]: Add brief definition or description (August 28)
•  Butler [r]: Add brief definition or description (August 21)
•  Tony Blair [r]: Add brief definition or description (August 14)
•  Northwest Passage [r]: Add brief definition or description (August 7)
•  Literature [r]: Add brief definition or description (July 31)
•  Biology [r]: Add brief definition or description (July 25)

New Drafts of the Week (before May 4, 2011)

•  Multi-touch interface [r]: Add brief definition or description
•  NoSQL [r]: Add brief definition or description
•  Debt [r]: Add brief definition or description
•  Ellesmere Chaucer manuscript [r]: Add brief definition or description
•  Ellipse [r]: Add brief definition or description
•  Aeneid [r]: Add brief definition or description
•  Tall tale [r]: Add brief definition or description
•  Plane (geometry) [r]: Add brief definition or description
•  Steam [r]: Add brief definition or description
•  Wasan [r]: Add brief definition or description
•  Racism in Australia [r]: Add brief definition or description
• Think tank [r]: Add brief definition or description
•  Les Paul [r]: Add brief definition or description
•  Zionism [r]: Add brief definition or description (September 3)
•  Earth's atmosphere [r]: Add brief definition or description (August 27)
•  Joshua Lawrence Chamberlain [r]: Add brief definition or description (August 20)
•  The Sporting Life (album) [r]: Add brief definition or description (August 13}
•  The Rolling Stones [r]: Add brief definition or description (August 5)
•  Euler angles [r]: Add brief definition or description (July 30)
•  Chester Nimitz [r]: Add brief definition or description (July 23)
•  Heat [r]: Add brief definition or description (July 16)
•  Continuum hypothesis [r]: Add brief definition or description (July 9)
•  Hawaiian alphabet [r]: Add brief definition or description (July 2)
•  Now and Zen [r]: Add brief definition or description (June 25)
•  Wrench (tool) [r]: Add brief definition or description (June 18)
•  Air preheater [r]: Add brief definition or description (June 11)
•  2009 H1N1 influenza virus [r]: Add brief definition or description (June 4)
•  Gasoline [r]: Add brief definition or description (21 May)
•  John Brock [r]: Add brief definition or description (8 May)
•  McGuffey Readers [r]: Add brief definition or description (14 Apr)
•  Vector rotation [r]: Add brief definition or description (7 Apr)
•  Leptin [r]: Add brief definition or description (31 Mar)
•  Kansas v. Crane [r]: Add brief definition or description (24 Mar)
•  Punch card [r]: Add brief definition or description (17 Mar)
•  Jass–Belote card games [r]: Add brief definition or description (10 Mar)
•  Leptotes (orchid) [r]: Add brief definition or description (3 Mar)
•  Worm (computers) [r]: Add brief definition or description (24 Feb)
•  Joseph Black [r]: Add brief definition or description (11 Feb 2009)
•  Sympathetic magic [r]: Add brief definition or description (17 Jan 2009)
•  Dien Bien Phu [r]: Add brief definition or description (25 Dec)
• Blade Runner [r]: Add brief definition or description (25 Nov)
•  Piquet [r]: Add brief definition or description (18 Nov)
•  Crash of 2008 [r]: Add brief definition or description (23 Oct)
•  Information Management [r]: Add brief definition or description (31 Aug)
•  Battle of Gettysburg [r]: Add brief definition or description (8 July)
•  Drugs banned from the Olympics [r]: Add brief definition or description (1 July)
•  Sea glass [r]: Add brief definition or description (24 June)
•  Dazed and Confused (Led Zeppelin song) [r]: Add brief definition or description (17 June)
•  Hirohito [r]: Add brief definition or description (10 June)
•  Henry Kissinger [r]: Add brief definition or description (3 June)
• Palatalization [r]: Add brief definition or description (27 May)
•  Intelligence on the Korean War [r]: Add brief definition or description (20 May)
•  Trinity United Church of Christ, Chicago [r]: Add brief definition or description (13 May)
•  BIOS [r]: Add brief definition or description (6 May)
•  Miniature Fox Terrier [r]: Add brief definition or description (23 April)
•  Joseph II [r]: Add brief definition or description (15 Apr)
•  British and American English [r]: Add brief definition or description (7 Apr)
•  Count Rumford [r]: Add brief definition or description (1 April)
•  Whale meat [r]: Add brief definition or description (25 March)
•  Naval guns [r]: Add brief definition or description (18 March)
•  Sri Lanka [r]: Add brief definition or description (11 March)
•  Led Zeppelin [r]: Add brief definition or description (4 March)
•  Martin Luther [r]: Add brief definition or description (20 February)
•  Cosmology [r]: Add brief definition or description (4 February)
•  Ernest Rutherford [r]: Add brief definition or description(28 January)
•  Edinburgh [r]: Add brief definition or description (21 January)
•  Russian Revolution of 1905 [r]: Add brief definition or description (8 January 2008)
•  Phosphorus [r]: Add brief definition or description (31 December)
•  John Tyler [r]: Add brief definition or description (6 December)
•  Banana [r]: Add brief definition or description (22 November)
•  Augustin-Louis Cauchy [r]: Add brief definition or description (15 November)
• B-17 Flying Fortress (bomber) [r]: Add brief definition or description - 8 November 2007
•  Red Sea Urchin [r]: Add brief definition or description - 1 November 2007
•  Symphony [r]: Add brief definition or description - 25 October 2007
•  Oxygen [r]: Add brief definition or description - 18 October 2007
•  Origins and architecture of the Taj Mahal [r]: Add brief definition or description - 11 October 2007
•  Fossilization (palaeontology) [r]: Add brief definition or description - 4 October 2007
•  Cradle of Humankind [r]: Add brief definition or description - 27 September 2007
•  John Adams [r]: Add brief definition or description - 20 September 2007
•  Quakers [r]: Add brief definition or description - 13 September 2007
•  Scarborough Castle [r]: Add brief definition or description - 6 September 2007
•  Jane Addams [r]: Add brief definition or description - 30 August 2007
•  Epidemiology [r]: Add brief definition or description - 23 August 2007
•  Gay community [r]: Add brief definition or description - 16 August 2007
•  Edward I [r]: Add brief definition or description - 9 August 2007