| Aristaeus | Arges | Arrival of the Semites to Babylonia and Assyria |
| ArcasIn Greek mythology, Arcas was the son of Zeus and of the nymph Callisto, whom Hera turned into a bear. Arcas unknowingly attempted to kill his mother during a hunt, not recognizing her. Zeus put them both in the sky as Ursa Major (Callisto) and Ursa Minor | Art and architecture of Babylonia and AssyriaThe culture of Assyria, and still more of Babylonia, was essentially literary; we miss in it the artistic spirit of Egypt or Greece. In Babylonia the abundance of clay and want of stone led to the employment of brick; the Babylonian temples are massive bu | Arbella StuartArbella Stuart (or Arabella and/or Stewart ) ( 1575 1615), Duchess of Somerset, was the only child of Elizabeth Cavendish (daughter of Bess of Hardwick) and Charles Stuart (younger brother of Henry Stuart, who was the second husband of Mary, Queen of Scot |
| Armor-piercing shot and shellAn Armour piercing shell is one designed to penetrate armour. In naval warfare and older anti-tank shells, the shell had to withstand the shock of punching through armour plate. Shells designed for this purpose had a greatly strengthened case with a speci | ArlesMediterranean, showing location of Arles Arles Arle in Provencal) is a city in the south of France, in the Bouches-du-Rhone departement of which it is a sous-prefecture in the former province of Provence. Geography The Rhone river divides itself in two ar | Artificial pacemakerA pacemaker (or artificial pacemaker , so as not to be confused with the heart's natural pacemaker) is a medical device designed to regulate the beating of the heart. The purpose of an artificial pacemaker is to stimulate the heart when either the heart's |
| Ariane 4Ariane 4 was an expendable launch system, designed by the European Space Agency and manufactured and marketed by the French company Arianespace. The development program began in 1983 and the first successful launch was on June 15, 1988. The system has bec | ArgoThe Argo was the ship on which Jason and the Argonauts sailed from Iolcus to retrieve the Golden Fleece. The Argo was built by Argus, son of Phrixus. The Argo had the gifts of speech and prophecy because it was made of oak wood from the oracle at Dodona. | Arnold PalmerArnold Daniel Palmer (b. September 10, 1929), born in Latrobe, Pennsylvania, is a golfer who has won numerous events on both the PGA TOUR and Champions Tour, dating back to 1955. He is a graduate of Wake Forest University. Although he is not generally reg |
| Arcesius | Arctic National Wildlife Refuge | Articulatory phonetics |
| Ariadne | Ardennes (département) | Artur Gavazzi |
| Arlington National Cemetery | Ardeas | Arete |
| Aretus | Argea | Arisbe |
| Aristomaches | Aristodemus | Arne |
| Arsinoe (mythology) | Ark of bulrushes | Aryan invasion theory |
| Argeus | Arrigo Boito | Aradia (goddess) |
| Arria | Ares Enyalius | Arsenic poisoning |
| Artume | Arianrhod | Arawn |
| Arduinna | Arnemetia | Artio |
| Arvernus | Arden | Arne Jacobsen |
| Arran | Arachnid | Argiope |
| Arvak | Armstrong County, Pennsylvania | Arrow's impossibility theorem |
| Are You Being Served? | Aratus | Ardèche |
| Ariège | Arlington County, Virginia | Armstrong County, Texas |
| Archer County, Texas | Aransas County, Texas | Art Clokey |
| Arsinoe III of Egypt | Art Frahm | Armistice Day |
| Arugula | Arnakuagsak | Argonautica |
| Artaxerxes II of Persia | Arthur County, Nebraska | Arvo Pärt |
| Arkley, Hertfordshire | AR-15 | Arenac County, Michigan |
| Aroostook County, Maine | Arahuta | Ara Tiotio |
| Aremata-Popoa and Aremata-Rorua | Areoi | Arohirohi |
| Arlington, Texas | Arthrogryposis multiplex congenita | Archuleta County, Colorado |
| Arapahoe County, Colorado | Arkansas County, Arkansas | Archeology of the Americas |
| Arensnuphis | Artis | Aristoxenus |
| Argyria | Arezzo | Areas of Outstanding Natural Beauty in England |
| Archie Andrews | ARCNET | Arsphenamine |
| Aryman | Arjuna | Aranyani |
| Ardhanari | Ardra | Arundhati |
| Arrian | Arthur (cartoon) | Arab, Alabama |
| Ariton, Alabama | Argo, Alabama | Ardmore, Alabama |
