Anna Katharine Green was an American writer of detective fiction who helped to make the genre popular in America by creating well-constructed plots based on a good knowledge of criminal law. Green graduated from Ripley Female College (now Green Mountain College) in Poultney, Vermont, in 1866. Her

Christian Rohlfs was a German painter and printmaker who worked in an Expressionist style. Rohlfs studied art in the 1870s in Weimar, Germany, where he was schooled in a naturalistic figure painting tradition. Until about age 50, Rohlfs painted large landscapes in the style of academic realism.

Gerhard Rohlfs was a German explorer renowned for his dramatic journeys across the deserts of North Africa. More an adventurer than a scientific explorer, Rohlfs nevertheless compiled valuable geographic information. He was also the first European known to have traversed Africa by land from the

Joseph Samuel Bloch: When August Rohling, of the Roman Catholic theological faculty at the University of Prague, claimed that he could prove under oath the actuality of the blood ritual, Bloch retaliated. In a series of articles, he accused Rohling of ignorance and deceit, and Rohling sued for libel.…

Third Reich: The Röhm affair and the Night of the Long Knives: There was considerable opposition to Hitler’s new policy of stabilization, both from the more radical section of the Nazi movement and from those who had been left out in the scramble for positions and wanted no end…

Ernst Röhm was a German army officer and chief organizer of Adolf Hitler’s Storm Troopers (Sturmabteilung, or SA; Brownshirts). Feared as a rival by Hitler, he was murdered at the Führer’s order. A soldier from 1906, Röhm was wounded three times in World War I, during which he attained the rank of

acrylic: …about 1901, when German chemist Otto Röhm published doctoral research on polymers of acrylic esters. Beginning on a commercial basis in the 1930s, esters of acrylic acid were polymerized to form the polyacrylate resins, which are now important constituents of acrylic paints, and methacrylic acid esters were polymerized to

Éric Rohmer was a French motion-picture director and writer who was noted for his sensitively observed studies of romantic passion. Rohmer was an intensely private man who provided conflicting information about his early life. He offered different given names and gave several dates of birth,

Sax Rohmer was an internationally popular British writer who created the sinister Chinese criminal genius Fu Manchu, the hero-villain of many novels. The character Fu Manchu later appeared in motion pictures, radio, and television. From childhood Rohmer was interested in ancient Egypt, the Middle

Western sculpture: Central Europe: …of the monastery church at Rohr, in Germany (1718–25), and in St. John Nepomuk in Munich (begun 1733). Cosmas Damian’s style as a painter was influenced by Johann Michael Rottmayr as well as by the Italian masters whom he studied during his stay in Italy (1711–14), while the sculptural style…

Heinrich Rohrer was a Swiss physicist who, with Gerd Binnig, received half of the 1986 Nobel Prize for Physics for their joint invention of the scanning tunneling microscope. (Ernst Ruska received the other half of the prize.) Rohrer was educated at the Swiss Federal Institute of Technology in

Evangelical Lutheran Church in America: Developments from the late 20th century: …its first openly transgender bishop, Megan Rohrer, to serve its Sierra Pacific synod. Rohrer was the first transgender person to hold the role of bishop in any major American Christian denomination.

India: The Indian Paleolithic: The Rohri Hills, located at the Indus River margins of the desert, contain a group of sites associated with sources of chert, a type of stone that is a principal raw material for making tools and weapons. Evidence surrounding these chert bands—in an alluvial plain otherwise…

László Nemes: …Ausländer (played by Hungarian poet Géza Röhrig), spots a young boy who briefly survives after having been gassed. When the boy dies, Ausländer, convinced that the youth is his lost son, embarks upon a quest to give him a proper religious burial instead of loading his corpse into the ovens…

chromatography: Gas chromatography: Lutz Rohrschneider of Germany initiated studies that led to a standard set of solute species, solvent probes, which helped order stationary phases in terms of polarity and intermolecular interactions present.

Rohtak, city, east-central Haryana state, northwestern India. It lies about 40 miles (65 km) northwest of Delhi. Formerly called Rohtasgarh (“Fort of Rohtas”), Rohtak is said to have been founded by Raja Rohtas, a Panwar Rajput. It was constituted a municipality in 1867. The Dini mosque there dates

Rohtak, city, east-central Haryana state, northwestern India. It lies about 40 miles (65 km) northwest of Delhi. Formerly called Rohtasgarh (“Fort of Rohtas”), Rohtak is said to have been founded by Raja Rohtas, a Panwar Rajput. It was constituted a municipality in 1867. The Dini mosque there dates

rohu, Indian fish, a species of labeo

date rape: …incapacitating “date-rape drugs” such as Rohypnol, GHB (gamma hydroxybutyrate), and ketamine. Such substances can be slipped into alcoholic or other drinks when a victim is not looking. The drugs are usually odourless and colourless, although Rohypnol, after it became notorious as a date-rape drug, has been altered chemically to change…

Return on investment (ROI) is a percentage that represents the net profit or loss (i.e., earnings) on an investment over a certain period of time. In order to calculate ROI, you must first find the net profit or loss. Take the current or final value of your investment—including all the interest,

Filippo Tommaso Marinetti: …such plays as the French Le Roi bombance (performed 1909; “The Feasting King”) and the Italian Anti-neutralità (1912; “Anti-Neutrality”) and summed up his dramatic theory in a prose work, Teatro sintetico futurista (1916; “Synthetic Futurist Theatre”).

Louis-Philippe was the king of the French from 1830 to 1848; having based his rule on the support of the upper bourgeoisie, he ultimately fell from power because he could not win the allegiance of the new industrial classes. Louis-Philippe was the eldest son of Louis-Philippe Joseph de

Philippe de Broca: …Le Roi de coeur (1966; The King of Hearts), an antiwar film in which the inmates of an asylum take over a deserted village during wartime and elect a humble British soldier (played by Alan Bates) their king; The King of Hearts enjoyed long popularity as a cult film. His…

Michel Tournier: title, The Ogre), is about a French prisoner in Germany who assists the Nazis during World War II by searching for boys for a Nazi military camp. Les Météores (1975; Gemini) involves the desperate measures one man takes to be reunited with his identical twin brother,…

Roi Et, town, northeastern Thailand. It is a highway junction and is located near the Chi River. The surrounding area is densely settled, hilly, and poor. Between 1960 and 1970 it lost population through out-migration. Its agriculture (rice, corn [maize], beans, tobacco, and cotton) is less

Rigoletto: …play Le Roi s’amuse (The King Amuses Himself; also performed in English as The King’s Fool) by Victor Hugo, Verdi’s opera was nearly kept off the stage by censors. With Rigoletto, Verdi reached a new level in his career; his next two operas, Il trovatore and La traviata, exhibit…

Louis XIV was the king of France (1643–1715) who ruled his country, principally from his great palace at Versailles, during one of its most brilliant periods and who remains the symbol of absolute monarchy of the classical age. Internationally, in a series of wars between 1667 and 1697, he extended

administrative law: The French system: The Conseil du Roi of the ancien régime, with its functions as legal adviser and administrative court, is generally considered to be the precursor of the Conseil d’État. The basic structure of the Conseil d’État was laid down by Napoleon, however. Among the functions accorded to…

Rueil-Malmaison, town, western residential and industrial suburb of Paris, Hauts-de-Seine département, Île-de-France région, north-central France. Originally called Rotoialum or Roialum, it was a resort of the Merovingian kings, a Frankish dynasty (6th–8th century). In 1346 Rueil was burned by the

Greek literature: Old Athenian School: Emmanuel Roídis’ novel I Pápissa Ioánna (1866; Pope Joan) is a hilarious satire on medieval and modern religious practices as well as a pastiche of the historical novel. Pávlos Kalligás, in Thános Vlékas (1855), treated contemporary problems such as brigandage. In Loukís Láras (1879; Eng.…

Willebrord Snell was a Dutch astronomer and mathematician who discovered the law of refraction (also known as Snell’s law), which relates the degree of the bending of light to the properties of the refractive material. This law is basic to modern geometrical optics. In 1613 he succeeded his father,

Anne Roiphe is an American feminist and author whose novels and nonfiction explore the conflicts between women’s traditional family roles and the desire for an independent identity. Anne Roth graduated from Sarah Lawrence College in 1957 and married Jack Richardson in 1958. The marriage ended in

Adenet Le Roi was a poet and musician, interesting for the detailed documentary evidence of his career as a household minstrel. He received his training in the court of Henry III, duke of Brabant, at Leuven; after his patron’s death in 1261, his fortunes wavered, owing to dynastic rivalries and the

Marc Bloch: …France et en Angleterre (1924; The Royal Touch: Sacred Monarchy and Scrofula in England and France) is a densely documented study of the production and dissemination of a long-lived, powerful political myth of monarchical healing power. The second, Les Caractères originaux de l’histoire rurale française (1931; French Rural History: An…

Estonia: Independence restored: …succeeded as prime minister by Taavi Rõivas, who formed a coalition government with the centre-left Social Democratic Party. In foreign affairs, the country sought to improve its often tense relations with Russia and reoriented itself toward the West. In 1999 Estonia joined the World Trade Organization (WTO), and in 2004…

Mehmet Oz: In 2005 Oz wrote (with Michael F. Roizen) YOU: The Owner’s Manual. The book—which was noted for its engaging text and humour—led to a television appearance on The Oprah Winfrey Show. Oz subsequently became a regular guest on that program as well as many others, earning him the nickname “America’s…

A.R. Rahman: Their first project was Roja (1992), which resulted in Rahman’s first film soundtrack hit. More than 100 movie scores followed, including the music for Lagaan (2001), the first Bollywood film nominated for an Academy Award. Rahman’s albums sold more than 100 million copies.

Gustavo Rojas Pinilla was a professional soldier and dictator of Colombia (1953–57) whose corrupt and authoritarian regime converted his nationwide popularity into united national hostility. Nevertheless, he remained a major force in Colombian political life. After graduating from the Colombian

Agustín de Rojas Villandrando was a Spanish actor and author whose most important work, El viaje entretenido (“The Pleasant Voyage”), a picaresque novel in dialogue form, provides a valuable account of the Spanish theatre in the 16th century and of the life of the actors. He is also considered the

Francisco de Rojas Zorrilla was a Spanish dramatist of the school of his more eminent contemporary, Pedro Calderón de la Barca. Rojas Zorrilla was noted for tragedies and a new kind of play, the comedia de figurón, in which an eccentric is the chief figure. At their best, his plays have a sense of

Fernando de Rojas was a Spanish author whose single work is La Celestina, an extended prose drama in dialogue that marked an important stage in the development of prose fiction in Spain and in Europe. Of Jewish parentage, Rojas received a bachelor’s degree in law from the University of Salamanca

Manuel Rojas was a Chilean novelist and short-story writer. As a youth, Rojas traveled along the Argentine and Chilean border while working as an unskilled labourer. Many of the situations and characters he encountered there later became part of his fictional world. He became a linotype operator

Yulimar Rojas is considered the “Queen of the Triple Jump,” known for her series of historic performances. In 2022 she set the world record in the sport, jumping 15.74 meters (51.64 feet). In addition, at the 2020 Tokyo Games (which were delayed until 2021 because of the COVID-19 pandemic), she

cha-shitsu: …a small garden called a roji (“dewy path”), the first step in breaking communication with the outer world. The tea house is usually a small, thatched-roof structure with plain plaster walls, whose several openings, placed at different heights and filled with shoji (sliding panels of wooden lattice covered with translucent…

English National Ballet: Tamara Rojo was appointed to the position in 2012.

Rök Stone, 9th-century memorial block bearing the longest runic inscription known, found in Östergötland, Swed. Carved in granite, 725 runes bear a legible text containing secret formulas, perhaps maledictory in nature, verses of epic character, allusions to heroic myths, and a poetic vocabulary.

Inchon landing: …driving before it the demoralized Republic of Korea Army (ROKA) and poorly prepared and understrength units of the U.S. 24th Division that had been hastily sent over from the Eighth Army in Japan. Not until the first weeks of August was the United Nations Command (UNC), as MacArthur’s theater forces…

Ngada, tribe inhabiting the south coast of Flores, one of the Lesser Sunda Islands, in Indonesia. They live around the Inerie volcano and inland on the Badjava plateau. Primarily of Proto-Malay stock, they speak a Malayo-Polynesian language of the Ambon-Timor group, and numbered 35,000–40,000 in

Eleazar ben Judah Of Worms: …work is his ethical code Rokeaḥ (1505; “Dealer in Spice”), for which he is sometimes known as Eleazar Rokeaḥ. The work is prefaced with a number of chapters dealing with the essential principles of Judaism, in which Eleazar attempts to explain mystical concepts, including the unity of God, in terms…

Eleazar ben Judah Of Worms was a Jewish rabbi, mystic, Talmudist, and codifier. Along with the Sefer Ḥasidim (1538; “Book of the Pious”), of which he was a coauthor, his voluminous works are the major extant documents of medieval German Ḥasidism (an ultrapious sect that stressed prayer and

Flying Dutchman: …legend in his narrative poem Rokeby (1813); murder is committed on shipboard, and plague breaks out among the crew, closing all ports to the ship.

Diego Velázquez: Second Italian journey of Diego Velázquez: The Toilet of Venus (1647–51; or The Rokeby Venus) was also probably painted in Italy and is one of the few representations of the female nude in Spanish painting before the 19th century. The theme of the toilet of Venus, the rich colouring and warm…

Rokel River, river rising in the Guinea Highlands in north central Sierra Leone, West Africa. It drains a 4,100-sq-mi (10,620-sq-km) basin on its 250-mi (400-km) southwesterly course toward the Atlantic, and empties into the estuary of the Sierra Leone River (q.v.). Smallholder tobacco growing

Yiddish literature: Writers in Israel: After surviving the Holocaust, Leyb Rokhman, who had moved to Warsaw in 1930 and studied in a yeshiva, published Un in dayn blut zolstu lebn (1949; And In Your Blood Shall You Live), a journal of his wartime experiences. He settled in Jerusalem in 1950. With his family he…

Karl, baron von Rokitansky was an Austrian pathologist whose endeavours to establish a systematic picture of the sick organism from nearly 100,000 autopsies—30,000 of which he himself performed—helped make the study of pathological anatomy a cornerstone of modern medical practice and established

Ngada, tribe inhabiting the south coast of Flores, one of the Lesser Sunda Islands, in Indonesia. They live around the Inerie volcano and inland on the Badjava plateau. Primarily of Proto-Malay stock, they speak a Malayo-Polynesian language of the Ambon-Timor group, and numbered 35,000–40,000 in

Rokkaku Shisui was an authority on Japanese lacquer ware. After graduation in 1893 from the Tokyo Fine Arts School, he toured the provinces with the famous art connoisseur Okakura Kakuzō in search of old art works. He also accompanied Okakura on a study trip to the United States, where he worked at

Rokkaku Shisui was an authority on Japanese lacquer ware. After graduation in 1893 from the Tokyo Fine Arts School, he toured the provinces with the famous art connoisseur Okakura Kakuzō in search of old art works. He also accompanied Okakura on a study trip to the United States, where he worked at

political science: Behavioralism: The influential Norwegian scholar Stein Rokkan pioneered the use of cross-national quantitative data to examine the interaction of party systems and social divisions based on class, religion, and region, which in combination explain much voting behaviour. Rokkan identified the importance of “centre-periphery” tensions, finding that outlying regions of a…

tunnels and underground excavations: Water inflows: …and rock conditions on the Rokko Railroad Tunnel, using approximately three-quarters of a mile of drainage drifts and five miles of drain holes in a one-quarter-mile length of the main tunnel.

Ōsaka-Kōbe metropolitan area: The city site: …rises the granite peak of Mount Rokkō (3,058 feet). The region is geologically unstable. Although earthquakes occur only infrequently, they can be highly destructive; notable severe quakes include one that struck the area in 1596 and another that devastated Kōbe and neighbouring cities in 1995.

Zsigmond Móricz: …Small Hours of Morning”) and Rokonok (1930; “Relatives”) deal with the life of the decaying provincial nobility. In Móricz’s world, marriage and family life are fraught with bitter conflicts; but he also evokes pure, even idyllic, love as in Légy jó mindhalálig (1920; “Be Good Until Death”), often considered the…

Konstantin Konstantinovich Rokossovsky was a Soviet military commander noted for his role in the Battle of Stalingrad (1942–43). Rokossovsky, whose father was a railroad engineer, served in the imperial army as a noncommissioned officer in World War I. In 1917 he joined the Red Army and served in

Konstantin Konstantinovich Rokossovsky was a Soviet military commander noted for his role in the Battle of Stalingrad (1942–43). Rokossovsky, whose father was a railroad engineer, served in the imperial army as a noncommissioned officer in World War I. In 1917 he joined the Red Army and served in

Poland: Sigismund III Vasa: …a domestic confrontation: the 1606–08 rokosz (“rebellion”). Accusing the king of absolutist designs, the rokosz brought together sincere reformers (who demanded the “execution” of the laws), Roman Catholics, and Protestants, as well as magnates pursuing their own ends. Although the royal forces triumphed in battle, both the king and the…

Fyodor Stepanovich Rokotov was a Russian artist and prominent master of chamber portraits that were close to the ideas of sentimentalism and Rococo. He is credited with inventing a uniquely personal style in Russian portrait painting. Though he was a serf or freed serf by birth, Rokotov’s art

Jan Rokycana was a priest, archbishop, and follower of Jan Hus (1372/73–1415); he was a chief organizer of the papally denounced Hussite Church and a major figure in Bohemian church history. Rokycana went to Prague probably in 1410, assisting and later succeeding Jakoubek of Stříbro as organizer of

Rolamite, mechanical roller-band device that functions as an almost frictionless suspension system for rollers; it consists of a flexible metal band formed in an S-shaped loop. In the Figure, rollers A and B are suspended within the loops of the flexible metallic band C, fastened at D and E to the

rocket and missile system: Surface-to-air: …SAM systems include the German-designed Roland, an SA-8 equivalent fired from a variety of tracked and wheeled vehicles, and the French Crotale, an SA-6 equivalent that used a combination of radar command guidance and infrared terminal homing. Both systems were widely exported. Less directly comparable to Soviet systems was the…

Orlando, hero of the Charlemagne epics. Later literature that features the character includes Matteo Maria Boiardo’s Orlando innamorato and Ludovico Ariosto’s Orlando

French literature: Biography and related arts: …Barthes par Roland Barthes (1975; Roland Barthes), a contradictory, self-critical portrait; and Nathalie Sarraute’s Enfance (1983; Childhood). Genre boundaries blurred: in Barthes’s Fragments d’un discours amoureux (1977; A Lover’s Discourse: Fragments), criticism and self-analysis became fiction and writing became an erotic act.

French literature: Biography and related arts: …Barthes par Roland Barthes (1975; Roland Barthes), a contradictory, self-critical portrait; and Nathalie Sarraute’s Enfance (1983; Childhood). Genre boundaries blurred: in Barthes’s Fragments d’un discours amoureux (1977; A Lover’s Discourse: Fragments), criticism and self-analysis became fiction and writing became an erotic act.

Jean-Marie Roland was a French industrial scientist who, largely through his wife’s ambition, became a leader of the moderate Girondin faction of bourgeois revolutionaries during the French Revolution. The son of a royal official, Roland became inspector of manufactures in Amiens (1780) and then in

Jeanne-Marie Roland was the wife of Jean-Marie Roland, who directed her husband’s political career during the French Revolution, greatly influencing the policies of the moderate Girondin faction of bourgeois revolutionaries. Jeanne-Marie Phlipon was the daughter of a Paris engraver. Brilliant and

Henriëtte Goverdina Anna Roland Holst-van der Schalk was a Dutch poet and active Socialist whose work deals with the humanitarian concerns that informed her politics. She was a lawyer’s daughter. In 1896 she married the painter Richard Nicolaas Roland Holst (1868–1938), himself a talented prose

Warren Zevon: …the geopolitically inspired songs “Roland the Headless Thompson Gunner” and “Lawyers, Guns and Money.”

Willibald Alexis: Der Roland von Berlin (1840) portrays the struggle for power in the 15th century between the municipal authorities of Berlin-Kölln and the ruler of Brandenburg; Der falsche Woldemar (1842; “The False Woldemar”) recounts the rise and fall of a 14th-century pretender. In the first part…

Ruggero Leoncavallo: … (1900) was more successful, but Der Roland (1904), commissioned by Wilhelm II to glorify the Hohenzollerns, was a failure. A number of later works achieved passing success. For most of his operas Leoncavallo was his own librettist and showed a distinct literary ability and a flair for theatrical effect.

Sam Wood: Wood’s heyday: …Fred MacMurray, Albert Dekker, and Gilbert Roland. Kitty Foyle (1940), however, was a huge hit. The sentimental soap opera, which was based on Christopher Morley’s best seller, centres on a working-class girl (Ginger Rogers) who must choose between her wealthy boss and an idealistic doctor. The dramatic role made erstwhile…

Jean-Marie Roland was a French industrial scientist who, largely through his wife’s ambition, became a leader of the moderate Girondin faction of bourgeois revolutionaries during the French Revolution. The son of a royal official, Roland became inspector of manufactures in Amiens (1780) and then in

Jeanne-Marie Roland was the wife of Jean-Marie Roland, who directed her husband’s political career during the French Revolution, greatly influencing the policies of the moderate Girondin faction of bourgeois revolutionaries. Jeanne-Marie Phlipon was the daughter of a Paris engraver. Brilliant and

La Chanson de Roland, Old French epic poem that is probably the earliest (c. 1100) chanson de geste and is considered the masterpiece of the genre. The poem’s probable author was a Norman poet, Turold, whose name is introduced in its last line. The poem takes the historical Battle of Roncesvalles

William Steig: …D B! and the story Roland the Minstrel Pig (both 1968). He won the 1970 Caldecott Medal for his next book, Sylvester and the Magic Pebble (1969), about a donkey who finds a wish-granting rock.

brain: Two major furrows—the central sulcus and the lateral sulcus—divide each cerebral hemisphere into four sections: the frontal, parietal, temporal, and occipital lobes. The central sulcus, also known as the fissure of Rolando, also separates the cortical motor area (which is anterior to the fissure) from the cortical sensory…

brain: Two major furrows—the central sulcus and the lateral sulcus—divide each cerebral hemisphere into four sections: the frontal, parietal, temporal, and occipital lobes. The central sulcus, also known as the fissure of Rolando, also separates the cortical motor area (which is anterior to the fissure) from the cortical sensory…

Himmerland: …blue anemones grow in the Rold Forest, the remnant of a spruce forest that once covered most of the region. North of Rold Forest the heather-covered Rebild Hills, bought by Danish Americans in 1911 and donated to Denmark (1912) as a national park, are the site of annual Danish-American July…

Christopher Columbus: The second and third voyages of Christopher Columbus: …the mayor of La Isabela, Francisco Roldán, had led to appeals to the Spanish court, and, even as Columbus attempted to restore order (partly by hangings), the Spanish chief justice, Francisco de Bobadilla, was on his way to the colony with a royal commission to investigate the complaints. It is…

National Museum of History: …Child,” attributed to the artist Luisa Roldán, who was Spanish royal sculptor to King Charles II.

Pedro Roldán was a Spanish sculptor, painter, and architect, best remembered for his work on the main altarpiece at La Caridad, Sevilla (Seville), designed by Simón de Pineda and polychromed by Juan Valdés Leal. After studying in Granada with Alonso de Mena, the father of the famous sculptor Pedro

Jaime Roldós Aguilera was a lawyer elected president of Ecuador in 1979. After graduating from the University of Guayaquil and its law school, Roldós joined the faculty of the Vicente Rocafuerte University in Guayaquil. In 1962 he married Marta Bucaram, a niece of Assad Bucaram, the leader of the

Kerkrade: The former abbey of Rolduc (1104) has a notable Romanesque church; its courtyard buildings now serve as a boys’ school. A natural history and mining museum is housed in Oud Ehrenstein Castle. International music contests are held periodically in the Europaplein Park. Kerkrade metropolitan area is contiguous with Heerlen…

role, in sociology, the behaviour expected of an individual who occupies a given social position or status. A role is a comprehensive pattern of behaviour that is socially recognized, providing a means of identifying and placing an individual in a society. It also serves as a strategy for coping

adolescence: Deviance: …a relationship with an adult role model (parental or otherwise) are more successful than their peers in coping with the everyday stresses of life.

Paul Rudd: Career: …included Forgetting Sarah Marshall (2008); Role Models (2008), for which he cowrote the screenplay; I Love You, Man (2009); Our Idiot Brother (2011); The Perks of Being a Wallflower (2012); Prince Avalanche (2013); They Came Together (2014); The Fundamentals of Caring (2016);

Claire L. Chennault: …also wrote an aviation textbook, The Role of Defensive Pursuit (1935), that detailed new fighter tactics. His belief that bombers were vulnerable to attack by fighter planes, however, put him at odds with his superiors. Partial deafness and increasing disagreements with other air corps officers led him to retire in…

economics: Macroeconomics: …appeared, and in 1968 “The Role of Monetary Policy,” first delivered as Milton Friedman’s presidential address to the American Economic Association, introduced the notorious concept of “the natural rate of unemployment” (the minimum rate of unemployment that will prevent businesses from continually raising prices). Friedman’s paper defined the essence…

employee training: Another new technique is role playing. Members of the training staff create a situation by playacting, and the trainees either comment on what is taking place or participate in the attempt to find a solution, or they perform functions or services in conditions that simulate their working environment. Attention…

Ernest Gary Gygax: …created the world’s first fantasy role-playing game (RPG), Dungeons & Dragons (D&D), and ultimately paved the way for modern electronic RPGs.

role-playing video game, electronic game genre in which players advance through a story quest, and often many side quests, for which their character or party of characters gain experience that improves various attributes and abilities. The genre is almost entirely rooted in TSR, Inc.’s Dungeons &

Rolex, Swiss manufacturer of rugged but luxurious watches. Company headquarters are in Geneva. Founder Hans Wilsdorf was born in Germany but moved to Switzerland when he was a young man. There he found work at a watch-exporting company in La Chaux-de-Fonds, one of the centres of the Swiss