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  • Aidan, Saint (bishop of Lindisfarne)

    Saint Aidan, ; feast day August 31), apostle of Northumbria, monastic founder, first bishop of Lindisfarne, or Holy Island, off the coast of Northumberland. Aidan was a monk at Iona, an island of the Inner Hebrides in Scotland, when King Oswald of Northumbria requested that he be made bishop of the

  • Aidarusi, Sayyid (African author)
  • aide (French tax)

    France: Tax reform: …internal and external; and the aides, or excise taxes, levied on the sale of items as diverse as wine, tobacco, and iron. All the indirect taxes were extremely unpopular and had much to do with the state’s inability to rally the rural masses to its side in 1789. In the…

  • aide-de-camp (military official)

    Aide-de-camp, (French: “camp assistant”), an officer on the personal staff of a general, admiral, or other high-ranking commander who acts as his confidential secretary in routine matters. On Napoleon’s staff such officers were frequently of high military qualifications and acted both as his “eyes”

  • A?des (Greek mythology)

    Hades, in Greek mythology, god of the underworld. Hades was a son of the Titans Cronus and Rhea, and brother of the deities Zeus, Poseidon, Demeter, Hera, and Hestia. After Cronus was overthrown by his sons, his kingdom was divided among them, and the underworld fell by lot to Hades. There he ruled

  • Aidi (emperor of Han dynasty)

    China: From Chengdi to Wang Mang: …reigns of Chengdi (33–7 bce), Aidi (7–1 bce), and Pingdi (1 bce–6 ce) the conduct of state affairs and the atmosphere of the court were subject to the weakness or youth of the emperors, the lack of an heir to succeed Chengdi, and the rivalries between four families of imperial…

  • Aidi (emperor of Tang dynasty)

    Zhu Wen: …on the throne as the Aidi emperor and was forced to abdicate to Zhu in 907. Zhu then proclaimed himself first emperor of the Hou Liang dynasty. Five years later he was murdered by his own eldest son, who succeeded him on the throne.

  • Aidoo, Ama Ata (Ghanaian writer)

    Ama Ata Aidoo, Ghanaian writer whose work, written in English, emphasized the paradoxical position of the modern African woman. Aidoo began to write seriously while an honours student at the University of Ghana (B.A., 1964). She won early recognition with a problem play, The Dilemma of a Ghost

  • Aidoo, Christina Ama Ata (Ghanaian writer)

    Ama Ata Aidoo, Ghanaian writer whose work, written in English, emphasized the paradoxical position of the modern African woman. Aidoo began to write seriously while an honours student at the University of Ghana (B.A., 1964). She won early recognition with a problem play, The Dilemma of a Ghost

  • Aidos (Greek goddess)

    epic: The heroic life: As long as the goddesses Aidos (a personification of the sense of shame) and Nemesis (a personification of divine retribution) stay with humankind, however, helping people observe their moira without committing excesses, one can still gain riches, merits, and glory by the sweat of one’s brow. Only if one knows…

  • AIDS (disease)

    AIDS, transmissible disease of the immune system caused by the human immunodeficiency virus (HIV). HIV is a lentivirus (literally meaning “slow virus”; a member of the retrovirus family) that slowly attacks and destroys the immune system, the body’s defense against infection, leaving an individual

  • AIDS Coalition to Unleash Power (international organization)

    ACT UP, international organization founded in the United States in 1987 to bring attention to the AIDS epidemic. It was the first group officially created to do so. ACT UP has dozens of chapters in the United States and around the world whose purpose is to find a cure for AIDS, while at the same

  • AIDS Memorial Quilt

    AIDS: Social, legal, and cultural aspects: …than 48,000 panels of the AIDS Memorial Quilt, which has been displayed worldwide both to raise funds and to emphasize the human dimension of the tragedy. The United Nations designated December 1 as World AIDS Day.

  • AIDS-related complex (pathology)

    human sexual activity: Acquired immunodeficiency syndrome: …to as AIDS-related complex (ARC) and include fever, rashes, weight loss, and wasting. Opportunistic infections such as Pneumocystis carinii pneumonia, neoplasms such as Kaposi’s sarcoma, and central nervous system dysfunction are also common complications. The patient eventually dies, unable to mount an immunologic defense against the constant onslaught of…

  • AIE (economics)

    Institutional economics, school of economics that flourished in the United States during the 1920s and ’30s. It viewed the evolution of economic institutions as part of the broader process of cultural development. American economist and social scientist Thorstein Veblen laid the foundation for

  • AIG (American corporation)

    Henry Paulson: …that enabled the insurance corporation American International Group (AIG), Inc., to avoid bankruptcy. Additionally, Paulson cooperated with Bush, Bernanke, and others to draft the Emergency Economic Stabilization Act of 2008 (EESA), a bailout of the U.S. financial system made necessary by the growing credit crisis; the EESA was signed into…

  • Aigai (ancient Macedonian city, Europe)

    Edessa: …Edessa was the location of Aigai, the first capital of ancient Macedonia, was seriously challenged by the discovery in 1977 of royal tombs of Macedonian leaders at Verghina, southeast of Véroia, including one identified as that of Philip II. In Roman times Edessa was a stop on the Via Egnatia…

  • Aigaíon Pélagos (Mediterranean Sea)

    Aegean Sea, an arm of the Mediterranean Sea, located between the Greek peninsula on the west and Asia Minor on the east. About 380 miles (612 km) long and 186 miles (299 km) wide, it has a total area of some 83,000 square miles (215,000 square km). The Aegean is connected through the straits of the

  • Aigams (national capital, Namibia)

    Windhoek, town, capital of Namibia, located roughly in the centre of the country. It lies at an elevation of 5,428 feet (1,654 metres) and is about 400 miles (650 km) north of the Orange River and 760 miles (1,225 km) north of Cape Town, South Africa. The town is surrounded by dry, arid country,

  • Aiges (ancient Macedonian city, Europe)

    Edessa: …Edessa was the location of Aigai, the first capital of ancient Macedonia, was seriously challenged by the discovery in 1977 of royal tombs of Macedonian leaders at Verghina, southeast of Véroia, including one identified as that of Philip II. In Roman times Edessa was a stop on the Via Egnatia…

  • Aígina, Gulf of (gulf, Greece)

    Saronikós Gulf, gulf of the Aegean Sea between ákra (cape) Soúnion of the Attica (Modern Greek: Attikí) peninsula and ákra Skíllaion of the Argolís peninsula of the Greek Peloponnese (Pelopónnisos). A maximum of 50 miles (80 km) long northwest-southeast and about 30 miles wide, it is linked on the

  • Aiglon, L’? (play by Rostand)

    Edmond Rostand: …that is still remembered is L’Aiglon (1900). This highly emotional patriotic tragedy in six acts centres on the Duke of Reichstadt, who never ruled but died of tuberculosis as a virtual prisoner in Austria. Rostand always took pains to write fine parts for his stars, and L’Aiglon afforded Sarah Bernhardt…

  • Aigner, Ladislas (American photojournalist)

    Ladislas Aigner, (“Lucien”), Hungarian-born photojournalist whose use of the then new 35-mm Leica camera made him one of the pioneers in candid news photography in the 1930s and allowed him to capture such famous images as Albert Einstein standing before a blackboard and looking slightly rumpled

  • Aigner, Lucien (American photojournalist)

    Ladislas Aigner, (“Lucien”), Hungarian-born photojournalist whose use of the then new 35-mm Leica camera made him one of the pioneers in candid news photography in the 1930s and allowed him to capture such famous images as Albert Einstein standing before a blackboard and looking slightly rumpled

  • Aigrette (submarine)

    submarine: Toward diesel-electric power: …completed in 1900–01 and the Aigrette, completed in 1905, the first diesel-driven submarine of any navy.

  • aigrette (plumage)

    Aigrette, tuft of long, white heron (usually egret) plumes used as a decorative headdress, or any other ornament resembling such a headdress. Such plumes were highly prized as ornaments in Middle Eastern ceremonial dress. Jeweled aigrettes, at first made in the form of a tuft of plumes, became an

  • Aigues-Mortes (France)

    Aigues-Mortes, town, Gard département, Occitanie région, southeastern France, southwest of N?mes, on the Canal du Rh?ne à Sète, with its own 3.5-mile (6-km) canal to the Gulf of Lion. Its name comes from aquae mortuae, the “dead waters” of the surrounding saline delta marshland. Built by Louis IX

  • Aiguillon, Emmanuel-Armand de Richelieu, duc d’ (French statesman)

    Emmanuel-Armand de Richelieu, duke d’Aiguillon, French statesman, whose career illustrates the difficulties of the central government of the ancien régime in dealing with the provincial Parlements and estates, the extent to which powerful ministers were at the mercy of court intrigue, and how

  • Aigun, Treaty of (Sino-Russian relations)

    China: The antiforeign movement and the second Opium War (Arrow War): …to sign a treaty at Aigun (Aihui), by which the territory on the northern bank of the Amur was ceded to Russia and the land between the Ussuri River and the sea was placed in joint possession by the two countries, pending further disposition. But Beijing refused to ratify the…

  • Aihole (India)

    South Asian arts: Medieval temple architecture: South Indian style of Karnataka: …and two cave temples at Aihole are early 8th century. Among structural temples built during the rule of the Cālukyas of Bā?āmi are examples in the North Indian style; but, because the Karnataka region was more receptive to southern influences, there are a large number of examples that are basically…

  • Aijalon, Wadi (river, West Bank)

    Yarqon River: …Judaea and Samaria, and the Wadi Ayyalon (Aijalon) in the southeast. In the valley of the latter, according to the Bible, the moon stood still during Joshua’s conquest of the Amorites (Joshua 10).

  • Aiken (county, South Carolina, United States)

    Aiken, county, western South Carolina, U.S. It lies in the state’s sandhill region between the North Fork Edisto River to the northeast and the Savannah River border with Georgia to the southwest. The county is also drained by the South Fork Edisto. Aiken and Redcliffe Plantation state parks are

  • Aiken (South Carolina, United States)

    Aiken, city, seat of Aiken county, western South Carolina, U.S. Aiken lies 16 miles (26 km) northeast of Augusta, Georgia. It was chartered in 1835 and named for the railroad entrepreneur William Aiken. The city was originally a health resort. During the American Civil War the Confederate forces of

  • Aiken, Conrad (American writer)

    Conrad Aiken, American Pulitzer Prize-winning poet, short-story writer, novelist, and critic whose works, influenced by early psychoanalytic theory, are concerned largely with the human need for self-awareness and a sense of identity. Aiken himself faced considerable trauma in his childhood when he

  • Aiken, Conrad Potter (American writer)

    Conrad Aiken, American Pulitzer Prize-winning poet, short-story writer, novelist, and critic whose works, influenced by early psychoanalytic theory, are concerned largely with the human need for self-awareness and a sense of identity. Aiken himself faced considerable trauma in his childhood when he

  • Aiken, Howard (American mathematician and inventor)

    Howard Aiken, mathematician who invented the Harvard Mark I, forerunner of the modern electronic digital computer. Aiken did engineering work while he attended the University of Wisconsin, Madison. After completing his doctorate at Harvard University in 1939, he remained there for a short period to

  • Aiken, Howard Hathaway (American mathematician and inventor)

    Howard Aiken, mathematician who invented the Harvard Mark I, forerunner of the modern electronic digital computer. Aiken did engineering work while he attended the University of Wisconsin, Madison. After completing his doctorate at Harvard University in 1939, he remained there for a short period to

  • Aiken, Joan (British author)

    Joan Aiken, prolific British author of fantasy, adventure, horror, and suspense tales for both juvenile and adult readers. Perhaps best-known as the inventor of a genre called the “unhistorical romance,” Aiken wrote tales that combine humour and action with traditional mythic and fairy tale

  • Aiken, Joan Delano (British author)

    Joan Aiken, prolific British author of fantasy, adventure, horror, and suspense tales for both juvenile and adult readers. Perhaps best-known as the inventor of a genre called the “unhistorical romance,” Aiken wrote tales that combine humour and action with traditional mythic and fairy tale

  • Aiken, Loretta Mary (American comedian)

    Moms Mabley, American comedian who was one of the most successful black vaudeville performers. She modeled her stage persona largely on her grandmother, who had been a slave. Wise, clever, and often ribald, Mabley dressed in frumpy clothes and used her deep voice and elastic face (and, in later

  • aikidō (martial art)

    Aikido, martial art and self-defense system that resembles the fighting methods jujitsu and judo in its use of twisting and throwing techniques and in its aim of turning an attacker’s strength and momentum against himself. Pressure on vital nerve centres is also used. Aikido practitioners train to

  • aikido (martial art)

    Aikido, martial art and self-defense system that resembles the fighting methods jujitsu and judo in its use of twisting and throwing techniques and in its aim of turning an attacker’s strength and momentum against himself. Pressure on vital nerve centres is also used. Aikido practitioners train to

  • Aikin, Anna Laetitia (British author and editor)

    Anna Laetitia Barbauld, British writer, poet, and editor whose best writings are on political and social themes. Her poetry belongs essentially in the tradition of 18th-century meditative verse. The only daughter of John Aikin, she lived from the age of 15 to 30 in Warrington, Lancashire, where her

  • Aikin, Jesse B. (American music publisher)

    shape-note singing: History: Beginning with Jesse B. Aikin’s Christian Minstrel (1846), many tunebooks were printed in seven shapes, representing the seven syllables of the doremi system. Aikin’s seven-shape notation achieved wide use in the southern United States, where it was adopted in some denominational hymnals. After the American Civil War,…

  • Aikin, John (British educator)

    Anna Laetitia Barbauld: The only daughter of John Aikin, she lived from the age of 15 to 30 in Warrington, Lancashire, where her father taught at a Nonconformist Protestant academy. There she was encouraged by her father’s friends and colleagues to pursue her education and literary talents. In 1774 she married Rochemont…

  • Aikman, Troy (American football player)

    Troy Aikman, American gridiron football quarterback who led the Dallas Cowboys of the National Football League (NFL) to three Super Bowl victories (1993, 1994, and 1996). Aikman was raised in Cerritos, a suburb of Los Angeles, before moving with his family to the small town of Henryetta, Oklahoma,

  • Aikman, Troy Kenneth (American football player)

    Troy Aikman, American gridiron football quarterback who led the Dallas Cowboys of the National Football League (NFL) to three Super Bowl victories (1993, 1994, and 1996). Aikman was raised in Cerritos, a suburb of Los Angeles, before moving with his family to the small town of Henryetta, Oklahoma,

  • Aikoku Kōtō (Japanese political club)

    Etō Shimpei: …form a political club, the Aikoku Kōtō (“Public Party of Patriots”). Angered by the domination of the government by samurai (hereditary warriors) from Chōshū and Satsuma, the group denounced the arbitrary manner in which official decisions were being made and called for the establishment of a parliamentary system of government.

  • Ailanthus (plant)

    Ailanthus, Any of the flowering plants that make up the genus Ailanthus, in the quassia family (Simaroubaceae), native to eastern and southern Asia and northern Australia and naturalized in subtropical and temperate regions elsewhere. Ailanthus leaves alternate along the stem and are composed of

  • ailanthus (plant)

    Ailanthus, Any of the flowering plants that make up the genus Ailanthus, in the quassia family (Simaroubaceae), native to eastern and southern Asia and northern Australia and naturalized in subtropical and temperate regions elsewhere. Ailanthus leaves alternate along the stem and are composed of

  • Ailanthus altissima (plant)

    Tree of heaven, (Ailanthus altissima), rapid-growing tree, in the family Simaroubaceae, native to China but widely naturalized elsewhere. It has been planted as a yard and street tree in urban centres, because of its resistance to pollution, freedom from insects and disease, and ability to grow in

  • Ailanthus silk moth (insect)

    saturniid moth: The caterpillar of the cynthia moth (Samia cynthia or walkeri), also known as the ailanthus silk moth, native to Asia and introduced into North America, feeds chiefly on leaves of the ailanthus tree and the castor oil plant. The olive green adult has a distinctive pattern of crescents on…

  • Ailanthus/Altissima: Bilateral Dimensions of 2 Root Songs (album by Taylor)

    Cecil Taylor: In 2009 he released Ailanthus/Altissima: Bilateral Dimensions of 2 Root Songs with British drummer and longtime collaborator Tony Oxley.

  • Ailao Mountains (mountains, China)

    Yunnan: Relief and drainage: …secondary ranges—the Wuliang and the Ailao in the south-central area and the Wumeng in the northeast.

  • aileron (aircraft part)

    Aileron, movable part of an airplane wing that is controlled by the pilot and permits him to roll the aircraft around its longitudinal axis. Ailerons are thus used primarily to bank the aircraft for turning. Ailerons have taken different forms through the years but are usually part of the wing’s

  • Ailes, Roger (American television producer and political consultant)

    Roger Ailes, American television producer and political consultant who became the founding president of Fox News Channel (1996–16). Ailes, the son of a foreman at a Packard Electric plant, grew up in an Ohio factory town. He began a career in television the year that he graduated from Ohio

  • Ailes, Roger Eugene (American television producer and political consultant)

    Roger Ailes, American television producer and political consultant who became the founding president of Fox News Channel (1996–16). Ailes, the son of a foreman at a Packard Electric plant, grew up in an Ohio factory town. He began a career in television the year that he graduated from Ohio

  • ailette (armour)

    military technology: Plate: …the extremities; square plates called ailettes, which protected the shoulder, made a brief appearance between about 1290 and 1325 before giving way to jointed plate defenses that covered the gap between breastplate and upper-arm defenses. Helmets with hinged visors appeared about 1300, and by mid-century armourers were constructing closed, visored…

  • Ailey, Alvin, Jr. (American choreographer)

    Alvin Ailey, Jr., American dancer, choreographer, and director of the Alvin Ailey American Dance Theater. Having moved with his family to Los Angeles in 1942, Ailey became involved with the Lester Horton Dance Theater there in 1949. Following Horton’s death in 1953, Ailey was director of the

  • Ailly, Pierre d’ (French cardinal)

    Pierre d’Ailly, French theologian, cardinal, and advocate of church reform whose chief aim was to heal the Great Schism of the Western church (1378–1417). He advocated the doctrine of conciliarism—the subordination of the pope to a general council—and in 1381 he suggested convoking such a council

  • ailment

    Disease, any harmful deviation from the normal structural or functional state of an organism, generally associated with certain signs and symptoms and differing in nature from physical injury. A diseased organism commonly exhibits signs or symptoms indicative of its abnormal state. Thus, the normal

  • Ailred of Rievaulx, Saint (Cistercian monk)

    Saint Aelred of Rievaulx, writer, historian, and outstanding Cistercian abbot who influenced monasticism in medieval England, Scotland, and France. His feast day is celebrated by the Cistercians on February 3. Of noble birth, Aelred was reared at the court of King David I of Scotland, whose life

  • Ailsa Craig (island, Scotland, United Kingdom)

    Ailsa Craig, granite islet, South Ayrshire council area, Scotland, at the mouth of the Firth of Clyde and 10 miles (16 km) off the coast of South Ayrshire, to which it belongs. It is nicknamed “Paddy’s Milestone” for its location halfway between Glasgow and Belfast (Northern Ireland). The name

  • Ailuridae (mammal family)

    red panda: …sole member of the family Ailuridae.

  • Ailuroedus (bird genus)

    catbird: …three species of the genus Ailuroedus, of the bowerbird family (Ptilonorhynchidae), are also called catbirds. These green birds occur in Australia, New Guinea, and nearby islands. The male does not build a bower but holds territory in the forest by loud singing. For the related tooth-billed catbird, see bowerbird.

  • Ailuropoda (mammal genus)

    bear: Evolution and classification: Genus Ailuropoda (giant panda) 1 species of central China. Genus Helarctos (sun bear) 1 species of Southeast Asia. Genus

  • Ailuropoda melanoleuca (mammal)

    Giant panda, (Ailuropoda melanoleuca), bearlike mammal inhabiting bamboo forests in the mountains of central China. Its striking coat of black and white, combined with a bulky body and round face, gives it a captivating appearance that has endeared it to people worldwide. According to the IUCN Red

  • Ailurus fulgens (mammal)

    Red panda, (Ailurus fulgens), reddish brown, long-tailed, raccoonlike mammal, about the size of a large domestic cat, that is found in the mountain forests of the Himalayas and adjacent areas of eastern Asia and subsists mainly on bamboo and other vegetation, fruits, and insects. Once classified as

  • AIM (American civil rights organization)

    American Indian Movement, (AIM), militant American Indian civil rights organization, founded in Minneapolis, Minnesota, in 1968 by Dennis Banks, Clyde Bellecourt, Eddie Benton Banai, and George Mitchell. Later, Russell Means became a prominent spokesman for the group. Its original purpose was to

  • AIM (United States satellite)

    AIM, U.S. satellite designed to study noctilucent clouds. AIM was launched on April 25, 2007, by a Pegasus XL rocket that was dropped from an airplane. Noctilucent clouds are faint ice-bearing clouds that form at a height of about 80 km (50 miles) in the layer of the atmosphere called the

  • AIM-120 AMRAAM (missile)

    rocket and missile system: Air-to-air: …the third category was the AIM-120 AMRAAM (for advanced medium-range air-to-air missile), jointly developed by the U.S. Air Force and Navy for use with NATO aircraft. AMRAAM combined inertial mid-course guidance with active radar homing.

  • AIM-4 Falcon (missile)

    rocket and missile system: Air-to-air: …the AIM-4 (for air-intercept missile) Falcon, the AIM-9 Sidewinder, and the AIM-7 Sparrow. The widely imitated Sidewinder was particularly influential. Early versions, which homed onto the infrared emissions from jet engine tailpipes, could approach only from the target’s rear quadrants. Later versions, beginning with the AIM-9L, were fitted with more…

  • AIM-54 Phoenix (missile)

    rocket and missile system: Air-to-air: The AIM-54 Phoenix, a semiactive radar missile with active radar terminal homing introduced by the U.S. Navy in 1974, was capable of ranges in excess of 100 miles. Fired from the F-14 Tomcat, it was controlled by an acquisition, tracking, and guidance system that could engage…

  • AIM-7 Sparrow (missile)

    rocket and missile system: Semiactive: ) The AIM-7 Sparrow air-to-air missile of the U.S. Air Force used a similar semiactive radar guidance method. Laser-guided missiles also could use semiactive methods by illuminating the target with a small spot of laser light and homing onto that precise light frequency through a seeker head…

  • AIM-9 Sidewinder (missile)

    rocket and missile system: Passive: …achieve wide success was the AIM-9 Sidewinder developed by the U.S. Navy in the 1950s. Many later passive homing air-to-air missiles homed onto ultraviolet radiation as well, using on-board guidance computers and accelerometers to compute optimal intercept trajectories. Among the most advanced passive homing systems were optically tracking munitions that…

  • aim-point error

    rocket and missile system: Design principles: errors, guidance/en-route errors, or aim-point errors. Both launch- and aim-point errors can be corrected by surveying the launch and target areas more accurately. Guidance/en-route errors, on the other hand, must be corrected by improving the missile’s design—particularly its guidance. Guidance/en-route errors are usually measured by a missile’s circular error…

  • Aimar of Monteil (French bishop and crusader)

    Adhémar of Monteil, French bishop, papal legate, and a leader of the First Crusade. Adhémar was bishop of Le Puy from 1077 and made a pilgrimage to the East in 1086–87. Responding to Pope Urban II’s call in November 1095 for a holy expedition to the East, he was appointed papal legate of the

  • Aimar of Puy (French bishop and crusader)

    Adhémar of Monteil, French bishop, papal legate, and a leader of the First Crusade. Adhémar was bishop of Le Puy from 1077 and made a pilgrimage to the East in 1086–87. Responding to Pope Urban II’s call in November 1095 for a holy expedition to the East, he was appointed papal legate of the

  • Aimard, Gustave (French writer)

    Gustave Aimard, French popular novelist who wrote adventure stories about life on the American frontier and in Mexico. He was the main 19th-century French practitioner of the western novel. At the age of 12 Aimard went to sea as a ship’s boy and subsequently witnessed local wars and conspiracies in

  • Aimee, Sister (American religious leader)

    Aimee Semple McPherson, controversial American Pentecostal evangelist and early radio preacher whose International Church of the Foursquare Gospel brought her wealth, notoriety, and a following numbering in the tens of thousands. Aimee Kennedy was reared by her mother in the work of the Salvation

  • Aimer, boire et chanter (film by Resnais [2014])

    Alain Resnais: …Aimer, boire et chanter (2014; Life of Riley), were also praised by critics.

  • Aimoin (French monk and historian)

    Aimoin, French Benedictine monk whose history of the Franks was highly esteemed in the Middle Ages and the early modern period. After his arrival at the Abbey of Fleury-sur-Loire (between c. 980 and 985), near Orléans, Aimoin wrote about St. Benedict, completing the second and third books of the

  • Aimorés Mountains (mountains, Brazil)

    Aimorés Mountains, mountainous region divided between the estados (states) of Minas Gerais and Espírito Santo, eastern Brazil, occupying an area of about 3,900 square miles (10,100 square km). The mountains form a crystalline-hill upland with an average elevation of 3,000 feet (900 m). They are

  • Aimorés, Serra dos (mountains, Brazil)

    Aimorés Mountains, mountainous region divided between the estados (states) of Minas Gerais and Espírito Santo, eastern Brazil, occupying an area of about 3,900 square miles (10,100 square km). The mountains form a crystalline-hill upland with an average elevation of 3,000 feet (900 m). They are

  • AIMS (international organization)

    International Federation of Sports Medicine (FIMS), (French: Fédération Internationale de Médecine du Sport) confederation primarily comprising national sports medicine associations from across the globe. The organization also includes continental associations, regional associations, and various

  • Aimwell School (school, Philadelphia, Pennsylvania, United States)

    Anne Parrish: …that was later called the Aimwell School. It quickly proved a success, and within three years Parrish had hired several teachers to assist her with some 50 pupils. Courses in regular school subjects were supplemented by training in domestic skills. Over the years the school moved several times to larger…

  • Ain (department, France)

    Rh?ne-Alpes: départements of Loire, Rh?ne, Ain, Haute-Savoie, Savoie, Isère, Dr?me, and Ardèche. In 2016 the Rh?ne-Alpes région was joined with the région of Auvergne to form the new administrative entity of Auvergne-Rh?ne-Alpes.

  • A?n Be?da (Algeria)

    A?n Be?da, town, northeastern Algeria. It is situated on a plateau at the eastern edge of the Sétif plains. The plateau, once occupied by a large lake, now has several shallow depressions containing saline lakes. Sheltered on the east by wooded hills, A?n Be?da is in a grain-producing area

  • A?n Bessem (Algeria)

    Bouira: …there are also vineyards near A?n Bessem in the north. Sour el-Ghozlane in the drier south is a trading centre for horses, cattle, and sheep. Pop. (2008) 68,545.

  • A?n el-Hanech (archaeological site, Algeria)

    North Africa: Early humans and Stone Age society: …is uncertainty about some factors, A?n el-Hanech (in Algeria) is the site of one of the earliest traces of hominin occupation in the Maghrib. Somewhat later but better-attested are sites at Ternifine (near Tighenif, Algeria) and at Sidi Abd el-Rahmane, Morocco. Hand axes associated with the hominin Homo erectus have…

  • ?Ain Ghazal (archaeological site, Jordan)

    ?Ain Ghazal, archaeological site of a Pre-Pottery Neolithic settlement near Amman, Jordan, that was active from about 7250 bce to about 5000 bce, during which period the residents transitioned from relying on both wild and domesticated plants for subsistence to becoming a pastoral society. The

  • Ain Jalut, Battle of (Syrian history)

    Battle of ?Ayn Jālūt, ?Ayn Jālūt also spelled Ain Jalut, (September 3, 1260), decisive victory of the Mamlūks of Egypt over the invading Mongols, which saved Egypt and Islam and halted the westward expansion of the Mongol empire. Baghdad, the capital city of the ?Abbāsid caliphate, had fallen to

  • Ain River (river, France)

    Ain River, river, eastern France, flowing 124 miles (200 km) southward from the Jura Plateau through Jura and Ain départements. The river emerges from its gorge near Pont-d’Ain, having powered several hydroelectric stations (the largest of which is the Barrage de Vouglans). The Ain then crosses

  • A?n Salah (Algeria)

    I-n-Salah, oasis town, central Algeria, in the Sahara on the southern edge of the arid Tadema?t Plateau. At the crossing of ancient trans-Saharan caravan routes, it was once an important trade link between northern and central Africa but has declined in modern times owing to high transportation

  • A?n Sefra (Algeria)

    A?n Sefra, town, western Algeria. It is situated in the Saharan Atlas Mountains, 28 miles (45 km) east of the border with Morocco. The town lies in a broad valley between Mount A?ssa and Mount Mekter, on either side of the usually dry Wadi A?n Sefra. A?n Sefra was founded in 1881 as a French

  • A?n Temouchent (Algeria)

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