• Rohri Hills (hills, Pakistan)

    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…

  • Röhrig, Géza (Hungarian actor and poet)

    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…

  • Rohrschneider, Lutz (German chemist)

    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 (India)

    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

  • Rohtasgarh (India)

    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 (fish)

    rohu, Indian fish, a species of labeo

  • Rohypnol (drug)

    flunitrazepam, benzodiazepine drug known for its sedative, hypnotic, and anxiolytic (antianxiety) properties and for its illicit use, most notably as a so-called date rape drug. Flunitrazepam is sold under various trade names, including Rohypnol. Because of its high potential for misuse and its

  • ROI

    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,

  • Roi bombance, Le (play by Marinetti)

    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”).

  • Roi Citoyen (king of France)

    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

  • Roi de coeur, Le (film by Broca [1966])

    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…

  • Roi des aulnes, Le (novel by Tournier)

    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 (Thailand)

    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

  • Roi s’amuse, Le (play by Hugo)

    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…

  • Roi Soleil, Le (king of France)

    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

  • Roi, Conseil du (French government)

    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…

  • Roialum (France)

    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

  • Roídis, Emmanuel (Greek writer)

    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.…

  • Roijen Snell, Willebrord van (Dutch astronomer and mathematician)

    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,

  • Roiphe, Anne (American feminist and author)

    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

  • Rois Adenes, li (French poet and musician)

    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

  • Rois maudits, Les (series of novels by Druon)

    The Accursed Kings, a series of seven historical novels by French scholar Maurice Druon that describes elite French society and the monarchy from the beginning of the 14th century to the Battle of Poitiers in 1356. The novels, published in French as Les Rois maudits from 1955 to 1977, were cited by

  • Rois Thaumaturges: Étude sur le caractère surnaturel attribué à la puissance royale, particulièrement en France et en Angleterre, Les (work by Bloch)

    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…

  • Roitfeld, Carine (French fashion model, writer, and editor)

    Tom Ford: Education, Gucci, and personal life: …he hired the French stylist Carine Roitfeld and her frequent collaborator, photographer Mario Testino, to create a new, modern image for Gucci’s advertising campaigns. The Gucci style—the clothes, the models, the hair and makeup—served as a source to which the industry looked for creative inspiration. Ford also courted the interest…

  • Rõivas, Taavi (prime minister of Estonia)

    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…

  • Roja (film by Ratnam [1992])

    A.R. Rahman: Debut soundtrack and rise to fame: …project was the Tamil film Roja (1992), which was subsequently dubbed in multiple languages, including Hindi. Roja resulted in Rahman’s first film soundtrack hit and fetched him his first National Film Award and Filmfare Award South, both for best music direction. The soundtrack—which includes the melodies “Chinna Chinna Aasai” (“Small…

  • Rojas Pinilla, Gustavo (dictator of Colombia)

    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

  • Rojas Villandrando, Agustín de (Spanish writer)

    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

  • Rojas Zorrilla, Francisco de (Spanish dramatist)

    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

  • Rojas, Fernando de (Spanish writer)

    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

  • Rojas, Manuel (Chilean writer)

    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

  • Rojas, Yulimar (Venezuelan athlete)

    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

  • roji (Japanese garden)

    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…

  • Rojo, Tamara (Spanish ballerina and artisic director)

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

  • Rök Stone (Swedish runic artifact)

    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.

  • ROKA (South Korean army)

    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…

  • Roka Botey, Manuela (prime minister of Equatorial Guinea)

    Which Countries Have Had Women Leaders?: Equatorial Guinea 2023 Manuela Roka Botey prime minister Estonia 2021 Kaja Kallas prime minister Ethiopia 2018 Sahle-Work Zewde president Faroe Islands 1993 Marita Petersen prime minister

  • Rokanese (people)

    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

  • Rokeah (work by Eleazar ben Judah of Worms)

    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…

  • Rokeaḥ, Eleazar (German rabbi)

    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

  • Rokeby (poem by Scott)

    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.

  • Rokeby Venus, The (painting by Diego Velázquez)

    Art Abuse: 11 Vandalized Works of Art: The Toilet of Venus:

  • Rokel River (river, Sierra Leone)

    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

  • Rokeya, Begum (Bengali author, educator, political activist, and feminist)

    Bengali literature: Women writers: Begum Rokeya (1880–1932) was a prominent educator, political activist, and feminist thinker as well as an author and is considered a pioneer of women’s liberation in pre-partition Bengal. Ashapurna Devi (1909–95) was noted for her socially conscious and feminist writing. Mahasweta Devi (1926–2016) was acclaimed…

  • Rokhman, Leyb (Israeli author)

    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…

  • Rokitansky, Karl, Freiherr von (Austrian pathologist)

    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

  • Rokka (people)

    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 Chūtarō (Japanese art connoisseur)

    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 (Japanese art connoisseur)

    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

  • Rokkan, Stein (Norwegian political scientist)

    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…

  • Rokko Railroad Tunnel (tunnel, Japan)

    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.

  • Rokkō, Mount (mountain, Japan)

    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.

  • Rokonok (work by Móricz)

    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…

  • Rokossovskii, Konstantin Konstantinovich (Soviet commander)

    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

  • Rokossovsky, Konstantin Konstantinovich (Soviet commander)

    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

  • rokosz (Polish history)

    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…

  • Rokotov, Fyodor Stepanovich (Russian artist)

    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

  • Rokycana, Jan (Bohemian archbishop)

    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 (mechanics)

    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

  • Roland (epic hero)

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

  • Roland (missile)

    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…

  • Roland Barthes (work by Barthes)

    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.

  • Roland Barthes par Roland Barthes (work by Barthes)

    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.

  • Roland de La Platière, Jean-Marie (French scientist)

    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

  • Roland de La Platière, Jeanne-Marie (French politician)

    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

  • Roland Holst-van der Schalk, Henriëtte Goverdina Anna (Dutch poet and socialist)

    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

  • Roland the Headless Thompson Gunner (song by Zevon)

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

  • Roland von Berlin, Der (work by Alexis)

    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…

  • Roland, Der (opera by Leoncavallo)

    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.

  • Roland, Gilbert (American actor)

    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…

  • Roland, Jean-Marie (French scientist)

    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

  • Roland, Jeanne-Marie (French politician)

    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

  • Roland, La Chanson de (French epic poem)

    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

  • Roland, the Minstrel Pig (work by Steig)

    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.

  • Rolando, fissure of

    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…

  • Rolando, sulcus of

    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…

  • Rold Forest (forest, Denmark)

    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…

  • Roldán, Francisco (Spanish colonial mayor)

    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…

  • Roldán, Luisa (Spanish sculptor)

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

  • Roldán, Pedro (Spanish sculptor)

    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

  • Roldós Aguilera, Jaime (president of Ecuador)

    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

  • Rolduc (abbey, Kerkrade, Netherlands)

    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 (sociology)

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

  • role model (sociology)

    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.

  • Role Models (film by Wain [2008])

    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);

  • Role of Defensive Pursuit, The (book by Chennault)

    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…

  • Role of Monetary Policy, The (work by Friedman)

    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…

  • role playing (sociology)

    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…

  • role-playing game

    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)

    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)

    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

  • Rolex Watch Co. Ltd. (Swiss manufacturer)

    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

  • Rolf (duke of Normandy)

    Rollo was a Scandinavian rover who founded the duchy of Normandy. According to later Scandinavian sagas, Rollo, making himself independent of King Harald I of Norway, sailed off to raid Scotland, England, Flanders, and France on pirating expeditions. Early in the 10th century, Rollo’s Danish army

  • Rolf Krage (work by Ewald)

    Johannes Ewald: …resulted in the historical drama Rolf Krage (1770), taken from an old Danish legend that was recorded by the medieval historian Saxo Grammaticus.

  • Rolf Nevanlinna Prize (mathematics award)

    Fields Medal: Selection process and prize recipients: A related award, the Rolf Nevanlinna Prize, was also presented at each ICM from 1982 to 2018; it was replaced by the IMU Abacus Medal in 2022. This prize is awarded to one young mathematician for work dealing with the mathematical aspects of information science.

  • Rolfe, Frederick William (English author)

    Frederick William Rolfe was an English author and eccentric, best known for his autobiographical fantasy Hadrian the Seventh. He provides the curious example of an artist rescued from obscurity by his biographer; many years after Rolfe’s death A.J.A. Symons wrote a colourful biographical fantasy,

  • Rolfe, John (British colonial official)

    John Rolfe was a Virginia planter and colonial official who was the husband of Pocahontas, daughter of the Indian chief Powhatan. John Rolfe sailed for Virginia in 1609, but a shipwreck in the Bermudas delayed his arrival until the following year. About 1612 he began to experiment with growing

  • Rolie, Gregg (American musician)

    Santana: …1947, Autlán de Navarro, Mexico), Gregg Rolie (b. June 17, 1947, Seattle, Washington, U.S.), David Brown (b. February 15, 1947, New York, U.S.—d. September 4, 2000), Mike Carabello (b. November 18, 1947, San Francisco, California, U.S.), José (“Chepito”) Areas (b. July 25, 1946, León, Nicaragua), and Mike Shrieve (b. July…

  • Rolin, Dominique (Belgian author)

    Dominique Rolin was a Belgian novelist noted for embracing new narrative techniques. Author of more than 30 books in 50 years, Rolin produced a body of fiction that centres on the themes of birth, death, family, and physical dislocation. Between 1942 and 1946, influenced by German Romanticism,

  • Rolin, Nicolas (chancellor of Burgundy)

    Rogier van der Weyden: …Burgundy, and his powerful chancellor, Nicolas Rolin. Rogier may well have also been influenced by the writings of Thomas à Kempis, the most popular theologian of the era, whose “practical mysticism,” like Rogier’s painting, stressed empathetic response to episodes from the lives of Mary, Christ, and the saints.