anarchism: Russian anarchist thought: He reinforced this vision in Mutual Aid: A Factor in Evolution (1902), where he used biological and sociological evidence to argue that cooperation is more natural and usual than competition among both animals and human beings. In his Fields, Factories, and Workshops (1899) he developed ideas on the decentralization of…

Mutual and Balanced Force Reductions (MBFR), a series of Cold War-era talks between the United States and the Soviet Union (U.S.S.R.) during the 1970s and ’80s aimed at achieving parity in the level of conventional (nonnuclear) forces stationed in Europe. The agreements made during the MBFR

mutual assured destruction, principle of deterrence founded on the notion that a nuclear attack by one superpower would be met with an overwhelming nuclear counterattack such that both the attacker and the defender would be annihilated. By the early 1950s both the Soviet Union and the West were

Mutual Broadcasting System, American commercial radio network, operating from 1934 until 1999. The Mutual Broadcasting System began as a cooperative venture and provided some competition for the more-established national networks. On September 29, 1934, four AM radio stations—WXYZ in Detroit, WGN

Japan: Armed forces: Through the Treaty of Mutual Cooperation and Security—concluded between Japan and the United States in 1960, reaffirmed in 1970, and further corroborated and slightly revised in the late 1990s—the United States operates military bases in Japan, primarily in Okinawa. The treaty may be terminated one year after…

Comecon, organization established in January 1949 to facilitate and coordinate the economic development of the eastern European countries belonging to the Soviet bloc. Comecon’s original members were the Soviet Union, Bulgaria, Czechoslovakia, Hungary, Poland, and Romania. Albania joined in

history of film: Early growth of the film industry: …the spring of 1912 (the Mutual Film Corporation and the Universal Film Manufacturing Company).

Frederick Busch: The Mutual Friend (1978), which represents a departure for Busch in terms of subject matter, is an imaginative account of the last years of Charles Dickens as purportedly told by his friend George Dolby.

mutual fund, company that invests the funds of its subscribers in diversified securities and in return issues units representing shares in those holdings. It differs from the investment trust (q.v.), which issues shares in its own capital. In contrast to closed-end investment companies, which have

electromagnetism: Self-inductance and mutual inductance: The self-inductance of a circuit is used to describe the reaction of the circuit to a changing current in the circuit, while the mutual inductance with respect to a second circuit describes the reaction to a changing current in the second circuit. When…

electromagnetism: Self-inductance and mutual inductance: The self-inductance of a circuit is used to describe the reaction of the circuit to a changing current in the circuit, while the mutual inductance with respect to a second circuit describes the reaction to a changing current in the second circuit. When…

refractive index, measure of the bending of a ray of light when passing from one medium into another. If i is the angle of incidence of a ray in vacuum (angle between the incoming ray and the perpendicular to the surface of a medium, called the normal) and r is the angle of refraction (angle

Japan: International relations: …which it exercised through the United States–Japan Security Treaty (1951) by which U.S. forces remained in Japan until the Japanese secured their own defense. Japan agreed not to grant similar rights to a third power without U.S. approval. Americans promised to assist Japan’s Self-Defense Forces while U.S. military units (except…

will: …partners often draw up “mutual wills” involving transfer of business assets upon the death of one partner. See also probate.

friendly society, mutual-aid organization formed voluntarily by individuals to protect members against debts incurred through illness, death, or old age. Friendly societies arose in the 17th and 18th centuries and were most numerous in the 19th century. Friendly societies had their origins in the

mutualism, association between organisms of two different species in which each benefits. Mutualistic arrangements are most likely to develop between organisms with widely different living requirements. Several well-known examples of mutualistic arrangements exist. The partnership between

anarchism: French anarchist thought: …themes of his work were mutualism, federalism, and the power of the working classes to liberate themselves through organized economic action, an idea later known as “direct action.” By mutualism he meant the organization of society on an egalitarian basis. Although he was infamous for declaring (in What Is Property?)…

nitrogen fixation: Nitrogen fixation in nature: …Azotobacter, Beijerinckia, and Clostridium; and mutualistic (symbiotic) bacteria such as Rhizobium, associated with leguminous plants, and various Azospirillum species, associated with cereal grasses.

Pierre-Joseph Proudhon: Early life and education: …a weavers’ secret society, the Mutualists, who had evolved a protoanarchist doctrine that taught that the factories of the dawning industrial age could be operated by associations of workers and that these workers, by economic action rather than by violent revolution, could transform society. Such views were at variance with…

mutual assured destruction, principle of deterrence founded on the notion that a nuclear attack by one superpower would be met with an overwhelming nuclear counterattack such that both the attacker and the defender would be annihilated. By the early 1950s both the Soviet Union and the West were

statistics: Events and their probabilities: …events are said to be mutually exclusive if the occurrence of one event means that the other event cannot occur; in this case, when one event takes place, the probability of the other event occurring is zero.

Patricia Grace: …next book was a novel, Mutuwhenua: The Moon Sleeps (1978), which examined a marriage between a Māori woman and a man of European descent (Pākehā).

Modica, town, southeastern Sicily, Italy, at the confluence of two mountain torrents on the south margin of the Monti (mountains) Iblei, just south of Ragusa city. On the site of a Bronze Age (and perhaps Stone Age) fortress (c. 4000 bc), it emerged as Motyca, a town of the Siculi, an ancient

mutʿah, in Islamic law, a temporary marriage that is contracted for a limited or fixed period and involves the payment of money to the female partner. Mutʿah is referred to in the Qurʾān (Muslim scriptures) in these words: Partners who engage in mutʿah must do so freely and must predetermine the

South Asian arts: Medieval temple architecture: South Indian style of Tamil Nadu (7th–18th century): …(originally three) known as the Mūvarkovil, at Koḍumbāḷūr (c. 875).

Egypt: The Ṭūlūnid dynasty (868–905): …dominated by the caliph’s brother al-Muwaffaq, realized that Egypt was slipping from imperial control. An expedition dispatched by al-Muwaffaq to remove Aḥmad from the governorship failed. Taking advantage of the caliphate’s preoccupation with the revolt, Aḥmad in 878 invaded Palestine and Syria, where he occupied the principal cities and garrisoned…

Wahhābī, any adherent of the Islamic reform movement founded by Muḥammad ibn ʿAbd al-Wahhāb in the 18th century in Najd, central Arabia, and adopted in 1744 by the Saudi family. In the 20th and 21st centuries, Wahhābism is prevalent in Saudi Arabia and Qatar. The term Wahhābī is used primarily by

Almohads, Berber confederation that created an Islamic empire in North Africa and Spain (1130–1269), founded on the religious teachings of Ibn Tūmart (died 1130). A Berber state had arisen in Tinmel in the Atlas Mountains of Morocco about 1120, inspired by Ibn Tūmart and his demands for puritanical

Spain: The conquest: …musālimah, and their descendants, the muwallads; many of them were also mawālī (i.e., connected by patronage with an Arab) or even themselves of Amazigh lineage. This group formed the majority of the population because during the first three centuries social and economic motives induced a considerable number of natives to…

muwashshaḥ, (Arabic: “ode”), an Arabic poetic genre in strophic form developed in Muslim Spain in the 11th and 12th centuries. From the 12th century onward, its use spread to North Africa and the Muslim Middle East. The muwashshaḥ is written in Classical Arabic, and its subjects are those of

Muwatallis was a Hittite king during the New Kingdom (reigned c. 1320–c. 1294 bc). Muwatallis was the son and successor of Mursilis II. Although Muwatallis’ accession was unmarred by the customary flurry of revolts among the Hittite vassal states, a struggle with resurgent Egypt for the domination

Muwatallis was a Hittite king during the New Kingdom (reigned c. 1320–c. 1294 bc). Muwatallis was the son and successor of Mursilis II. Although Muwatallis’ accession was unmarred by the customary flurry of revolts among the Hittite vassal states, a struggle with resurgent Egypt for the domination

Mālik ibn Anas: …Anas produced one major book—the Muwaṭṭaʾ. This is the oldest surviving compendium of Islamic law.

Ajo, town, Pima county, southwestern Arizona, U.S. Spaniards mined in the area in the 1750s, and the Ajo Copper Company (1854) was the first incorporated mining concern in the Arizona Territory. Copper and silver were the most valuable minerals mined in the area. The mines remained dormant from

Muyaka bin Haji al-Ghassaniy was a Kenyan poet who was the first Swahili-language secular poet known by name. Ghassaniy is known particularly as an outstanding composer of quatrains (the most popular Swahili verse form for both philosophical and topical themes). Although he experimented little with

Eadweard Muybridge was an English photographer important for his pioneering work in photographic studies of motion and in motion-picture projection. Edward James Muggeridge adopted the name Eadweard Muybridge, believing it to be the original Anglo-Saxon form of his name. He immigrated to the United

Muyua Island, coral island of Papua New Guinea, southwestern Pacific Ocean, approximately 150 miles (240 km) northeast of the southeasternmost point of the island of New Guinea, Solomon Sea. Muyua’s rough surface of raised coral pinnacles (rising to 1,200 feet [365 metres] in the south) is covered

Kazakhstan: Relief: … of the interior, and the Muyunkum and Kyzylkum deserts in the south. Most of these desert regions support slight vegetative cover fed by subterranean groundwater.

mawlid: That occasion was organized by Muẓaffar al-Dīn Gökburi, brother-in-law of the Ayyūbid sultan Saladin, at Erbil, near Mosul (Iraq). It closely parallels the modern mawlid in form. The actual day of Muhammad’s birth was preceded by an entire month of merrymaking. Musicians, jugglers, and assorted entertainers attracted people from as…

Salghurid dynasty: …founder of the dynasty was Muẓaffar al-Dīn Sonqur (reigned 1148–61), who took advantage of a disturbed state in Fārs to expel his reputed uncle Boz-Aba, the local atabeg. Muẓaffar al-Dīn’s son Zangī (reigned 1161–c. 1175) was confirmed in his possession of Fārs by the Seljuq ruler Arslan ibn Toghrïl.

India: The Anglo-French struggle, 1740–63: …second son and a grandson, Muẓaffar Jang. Dupleix, encouraged by his easy repulse of the Carnatic nawab from the walls of Madras, decided to support both Muẓaffar and the claimant to the Carnatic nawabship, Chanda Sahib. Dupleix’s reward for success would be the means of ruining the British trade in…

Baybars I: …Egypt by the third sultan, al-Muẓaffar Sayf al-Dīn Quṭuz. He restored them to their place in the army and conferred a village upon Baybars.

sultanate of Malacca: …under the following ruler, Sultan Muzaffar Shah (reigned 1445–59?), the city-state became a major territorial as well as commercial power in the region and a source for the further diffusion of Islam within the Indonesian archipelago. Shortly after his succession, Muzaffar Shah refused to pay the customary tribute to Malacca’s…

Muẓaffar ʿAlī was a Persian miniaturist and calligrapher known best for his elegant human figures in rich, lyrical settings. He painted during the great flowering of Persian painting under the Ṣafavid shahs. He was the son of the Ṣafavid painter Haydar ʿAlī and a relative of the great painter

Spain: The caliphate of Córdoba: Al-Muẓaffar (1002–08) continued his father’s policies, hemming in Hishām II and fighting against the Christians. After Al-Muẓaffar’s premature death, his brother ʿAbd al-Raḥmān Sanchuelo took the reins of power, but he lacked the fortitude to maintain the structure built by his father. An uprising that…

Muzaffarnagar, city, northwestern Uttar Pradesh state, northern India. It is located in the Upper Ganges-Yamuna Doab alluvial plain, about 65 miles (100 km) north-northeast of Delhi. Muzaffarnagar was founded about 1633 by the Mughal nobleman Khan-e Jahān, who named it for his father, Muẓaffar

Muzaffarpur, city, north-central Bihar state, northeastern India. It lies just south of the Burhi (“Old”) Gandak River. The city was founded by Muẓaffar Khan in the 18th century and was constituted a municipality in 1864. A major road and rail hub, it is a trade centre on the route between Patna

Shebaa Farms, area of land along the border of Lebanon and the Golan Heights (a territory recognized by most of the international community as part of Syria but occupied by Israel since the Six-Day War [1967]) that is claimed by Lebanon, internationally recognized as part of Syria, and occupied by

hajj: …holy places outside Mecca—Jabal al-Raḥmah, Muzdalifah, and Minā—and sacrifices an animal in commemoration of Abraham’s sacrifice. Male pilgrims’ heads are then usually shaved, and female pilgrims remove a lock of hair. After the rajm ritual at Minā, in which pilgrims throw seven stones at three walls (formerly pillars, symbolizing the…

John Guare: His first notable works—Muzeeka (1968), about American soldiers of the Vietnam War who have television contracts, and Cop-Out (1968)—satirize the American media.

Martyrs of Uganda: The page Jean Marie Muzeyi was beheaded on January 27, 1887.

Ismail Kadare: …i perëndive të stepës (1978; Twilight of the Eastern Gods) is a roman à clef about Kadare’s time at the Gorky Institute. His subsequent works of fiction included Nëpunësi i pallatit të ëndrrave (1981; The Palace of Dreams), Dosja H. (1990; The File on H.), and Piramida (1995; The Pyramid).…

al-Suyūṭī: …his most important philological work, Al-Muẓhir fī ʿulūm al-lughah wa anwāʿihā (“The Luminous Work Concerning the Sciences of Language and its Subfields”), a linguistic encyclopaedia covering such topics as the history of the Arabic language, phonetics, semantics, and morphology. It was largely derived from the works of two predecessors, Ibn…

Pamirs: Physiography: …the Pamirs, is the east-west Muzkol Range, reaching 20,449 feet (6,233 metres) in Soviet Officers Peak. South of it stretches one of the largest ranges of the Pamirs, called Rushan on the west and Bazar-dara, or Northern Alichur, on the east. Still farther south are the Southern Alichur Range and,…

Tongzhi was the reign name (niaohao) of the eighth emperor (reigned 1861–1874/75) of the Qing dynasty (1644–1911/12), during whose reign occurred a short revitalization of the beleaguered Qing government, known as the Tongzhi Restoration. Ascending the throne at the age of five (six by Chinese

Longqing was the 12th emperor (reigned 1566/67–72) of the Ming dynasty (1368–1644), in whose short reign the famous minister Zhang Juzheng first came to power and the country entered a period of stability and prosperity. During his reign, the Mongol leader Altan (died 1583), who had been harassing

Abel Tendekayi Muzorewa was the prime minister of Zimbabwe Rhodesia from June to December 1979, in a transitional period from white to black rule. Muzorewa was educated at Methodist schools in Southern Rhodesia and then spent five years (1958–63) at the Central Methodist College, Fayette, Mo., and

Múzquiz, city, north-central Coahuila estado (state), northeastern Mexico. It lies on a small tributary of the Sabinas River, roughly 1,654 feet (504 metres) above sea level and southwest of the city of Piedras Negras, near the Mexico-U.S. border. Múzquiz was founded as a mission called Santa Rosa

Ferenc Molnár: …stories, especially those collected in Muzsika (1908; “Music”), are masterpieces; concise and moving, they look beneath the glittering facade of society life to the problems of the poor and the underdog. Among his many novels, however, only A Pál utcai fíuk (1907; The Paul Street Boys) achieved much success. Molnár…

Tibet: Relief: …Mountains, with the highest peak, Mount Muztag (Muztagh; on the Tibet-Xinjiang border), reaching 25,338 feet (7,723 metres). The western and southern border of the Plateau of Tibet is formed by the great mass of the Himalayas; the highest peak is Mount Everest, which rises to 29,035 feet (8,850 metres; see…

Muztagata Range, mountain range in the westernmost part of the Uygur Autonomous Region of Xinjiang, northwestern China. As a far western part of the Kunlun Mountains, it extends some 200 miles (320 km) along a north-northwest and south-southeast axis parallel to the eastern edge of the Pamirs range

Kunlun Mountains: Physiography: …metres), as well as Mount Muztagata, at 24,757 feet (7,546 metres). A major bifurcation occurs just south of the oasis town of Qiemo (Cherchen); there, the Altun Mountains branch in a northeasterly direction from the Arkatag Mountains at Mount Muztag (Muztagh), which at 25,338 feet (7,723 metres) is the highest…

Tibet: Relief: …Mountains, with the highest peak, Mount Muztag (Muztagh; on the Tibet-Xinjiang border), reaching 25,338 feet (7,723 metres). The western and southern border of the Plateau of Tibet is formed by the great mass of the Himalayas; the highest peak is Mount Everest, which rises to 29,035 feet (8,850 metres; see…

Kunlun Mountains: Physiography: …metres), as well as Mount Muztagata, at 24,757 feet (7,546 metres). A major bifurcation occurs just south of the oasis town of Qiemo (Cherchen); there, the Altun Mountains branch in a northeasterly direction from the Arkatag Mountains at Mount Muztag (Muztagh), which at 25,338 feet (7,723 metres) is the highest…

Southern Africa: Other southeastern African states: …powerful state had emerged under Muzura, perhaps out of an earlier system of small Maravi states at the southern end of Lake Nyasa. Although initially Muzura was assisted by the Portuguese, his power was based on exacting tribute from the Portuguese and their allies south of the Zambezi. In the…

warship: Gun-armed warships: …replaced after 1500 by brass muzzle-loaders, cast in one piece. Some of these muzzle-loaders attained great size for their day; by the mid-16th century even some 60-pounders (firing 60-pound [27-kg] solid shot) were mounted in the largest ships. In this century also, increasing knowledge of iron metallurgy led to the…

B.M. Bower was an American author and screenwriter known for her stories set in the American West. She was born Bertha Muzzy. She moved as a small child with her family from Minnesota to Montana, where she gained the firsthand experience of ranch life that was central to her novels and screenplays.

B.M. Bower was an American author and screenwriter known for her stories set in the American West. She was born Bertha Muzzy. She moved as a small child with her family from Minnesota to Montana, where she gained the firsthand experience of ranch life that was central to her novels and screenplays.

muezzin, in Islam, the official who proclaims the call to prayer (adhān) on Friday for the public worship and the call to the daily prayer (ṣalāt) five times a day, at dawn, noon, midafternoon, sunset, and nightfall. To summon worshippers, the Jews use a trumpet and the Christians use a bell, but

muezzin, in Islam, the official who proclaims the call to prayer (adhān) on Friday for the public worship and the call to the daily prayer (ṣalāt) five times a day, at dawn, noon, midafternoon, sunset, and nightfall. To summon worshippers, the Jews use a trumpet and the Christians use a bell, but

Al-Muʿallaqāt, collection of seven pre-Islamic Arabic qaṣīdahs (odes), each considered to be its author’s best piece. Since the authors themselves are among the dozen or so most famous poets of the 6th century, the selection enjoys a unique position in Arabic literature, representing the finest of

Muʿāwiyah I was an early Islamic leader and founder of the great Umayyad dynasty of caliphs. He fought against the fourth caliph, ʿAlī (Muhammad’s son-in-law), seized Egypt, and assumed the caliphate after ʿAlī’s assassination. He restored unity to the Muslim empire and made Damascus its capital.

Muʿāwiyah I was an early Islamic leader and founder of the great Umayyad dynasty of caliphs. He fought against the fourth caliph, ʿAlī (Muhammad’s son-in-law), seized Egypt, and assumed the caliphate after ʿAlī’s assassination. He restored unity to the Muslim empire and made Damascus its capital.

Bahādur Shah I was the Mughal emperor of India from 1707–12. As Prince Muʿaẓẓam, the second son of the emperor Aurangzeb, he was the prospective heir after his elder brother defected to join their father’s brother and rival, Shah Shujāʿ. Prince Muʿaẓẓam was sent in 1663 to represent his father in

Indian philosophy: The ultralogical period: …Muslim Sufi (mystic) saints, including Khwāja Muʾin-ud-Din Ḥasan, who emphasized asceticism and taught a philosophy that included both love of God and love of humanity.

Anatolia: Division and decline: …al-Dīn Qaraṭāy (1249–54), and especially Muʿīn al-Dīn Sulaymān Parvāna (1261–77).

Muʿizz al-Dīn Muḥammad ibn Sām was the Ghūrid conqueror of the north Indian plain; he was one of the founders of Muslim rule in India. Muʿizz al-Dīn’s elder brother, Ghiyāth al-Dīn, acquired power east of Herāt in the region of Ghūr (Ghowr, in present Afghanistan) about 1162. Muʿizz al-Dīn always

ʿImād al-Dawlah: ʿAlī and his brothers Aḥmad and Ḥasan were followers of Mardāvīz ebn Zeyār of northern Iran. In 934, ʿAlī revolted against local Zeyārid rulers and conquered Fārs province in southern Iran. He made Shīrāz his capital and ruled there until his death. After Aḥmad established control over the Abbasid…

Muʿizz al-Dīn Muḥammad ibn Sām was the Ghūrid conqueror of the north Indian plain; he was one of the founders of Muslim rule in India. Muʿizz al-Dīn’s elder brother, Ghiyāth al-Dīn, acquired power east of Herāt in the region of Ghūr (Ghowr, in present Afghanistan) about 1162. Muʿizz al-Dīn always

Sanjar was a Seljuq prince of Khorāsān from c. 1096 to 1157, whose fame almost eclipses that of the “Great Seljuqs” because of the length of his reign, his power and victories in its first half, his disasters in the second, and the fact that he was the last real Seljuq sultan in Iran. Appointed

al-Muʿizz was the most powerful of the Fāṭimid caliphs, whose armies conquered Egypt and who made the newly founded Al-Qāhirah, or Cairo, his capital in 972–973. He was about 22 years of age when he succeeded his father, al-Mansur, in 953 with the title of al-Muʿizz. His authority was acknowledged

Aybak was the first Mamlūk sultan of Egypt (1250–57) in the Turkish, or Baḥrī, line. Upon the death of al-Ṣaliḥ, the last great sultan of the Ayyūbid dynasty, his son succeeded him but offended his father’s slave guards, or Mamlūks, who killed him (April 30, 1250). Shajar al-Durr, al-Ṣaliḥ’s widow,

al-Muʿizz was the most powerful of the Fāṭimid caliphs, whose armies conquered Egypt and who made the newly founded Al-Qāhirah, or Cairo, his capital in 972–973. He was about 22 years of age when he succeeded his father, al-Mansur, in 953 with the title of al-Muʿizz. His authority was acknowledged

Ayman al-Zawahiri was an Egyptian physician and militant who became one of the major ideologues of al-Qaeda. Zawahiri led al-Qaeda from 2011 until his death in 2022. Zawahiri was raised in Maʿādī, Egypt, several miles south of Cairo. Although his parents were from prominent families, Zawahiri and

Abū Yūsuf Yaʿqūb al-Manṣūr: …the third ruler of the Muʾminid dynasty of Spain and North Africa, who during his reign (1184–99) brought the power of his dynasty to its zenith.

ʿAbbādid dynasty: His son Abu ʿAmr ʿAbbād, known as al-Muʿtaḍid (1042–69), greatly enlarged his territory by forcibly annexing the minor kingdoms of Mertola, Niebla, Huelva, Saltés, Silves, and Santa María de Algarve.

al-Muʿtaḍid was one of the greatest of the ʿAbbāsid caliphs (reigned 892–902), known especially for his ruthless skill in dealing with competing provincial dynasties, sects, and factions. The son of al-Muwaffaq, al-Muʿtaḍid was coregent, with al-Muʿtamid, in his father’s last years. He became

al-Muʿtamid was the third and last member of the ʿAbbādid dynasty of Sevilla (Seville) and the epitome of the cultivated Muslim Spaniard of the Middle Ages—liberal, tolerant, and a patron of the arts. At age 13 al-Muʿtamid commanded a military expedition that had been sent against the city of

al-Muʿtaḍid: …al-Muwaffaq, al-Muʿtaḍid was coregent, with al-Muʿtamid, in his father’s last years. He became caliph on al-Muʿtamid’s death in 892, having forced him to disinherit his own son. As caliph, al-Muʿtaḍid reorganized the administration and reformed finances. He concluded a peace with the Ṭūlūnids by marrying their caliph’s daughter and dealt…

al-Muʿtamid was the third and last member of the ʿAbbādid dynasty of Sevilla (Seville) and the epitome of the cultivated Muslim Spaniard of the Middle Ages—liberal, tolerant, and a patron of the arts. At age 13 al-Muʿtamid commanded a military expedition that had been sent against the city of

Hūdid Dynasty: …leaving it to his son Yūsuf al-Muʾtamin (reigned 1081–85), who was more a scholar than a political figure. The reign of Aḥmad II al-Mustaʿīn (1085–1110) was marked by constant wars against the Christians. He was dealt a severe defeat at Alcoraz in 1096, during the Christian march on Huesca; Saragossa…

al-Muʿtaṣim was the eighth ʿAbbāsid caliph, a younger son of Hārūn ar-Rashīd. Succeeding his brother al-Maʾmūn in 833, al-Muʿtaṣim was the first caliph to employ the Turkish mercenaries who later came to dominate the ʿAbbāsid dynasty. In 837 he crushed a revolt of Persian schismatics led by the

Muʿtazilah, in Islam, political or religious neutralists; by the 10th century ce the term had come to refer specifically to an Islamic school of speculative theology (kalām) that flourished in Basra and Baghdad (8th–10th century). The name first appears in early Islamic history in the dispute over

Muʿtazilah, in Islam, political or religious neutralists; by the 10th century ce the term had come to refer specifically to an Islamic school of speculative theology (kalām) that flourished in Basra and Baghdad (8th–10th century). The name first appears in early Islamic history in the dispute over

Muʿtazilah, in Islam, political or religious neutralists; by the 10th century ce the term had come to refer specifically to an Islamic school of speculative theology (kalām) that flourished in Basra and Baghdad (8th–10th century). The name first appears in early Islamic history in the dispute over

Marburgvirus: …humans, marburgviruses are responsible for Marburg virus disease (MVD), a zoonotic disease that is characterized by high fever, malaise, nausea, vomiting, diarrhea, skin rash, and hemorrhage (bleeding). MVD case fatality rates have been as high as 80 to 90 percent.

MVD, former Soviet internal-affairs ministry, and one of the forerunners of the KGB

Afonso I was the ruler of Kongo (historical kingdom in west-central Africa) and the first of a line of Portuguese vassal kings that lasted until the early 20th century. He is sometimes called “The Apostle of Kongo” for his role in making Kongo a Christian kingdom. Nothing is known of his early

minimum viable population (MVP), ecological threshold that specifies the smallest number of individuals in a species or population capable of persisting at a specific statistical probability level for a predetermined amount of time. Ecologists seek to understand how large populations must be in

baseball: Awards: The Most Valuable Player (MVP) is selected in both the American League and the National League. The MVP was first given in 1922; since 1931 the players have been chosen by the Baseball Writers Association of America (BBWAA). There are also MVP awards for the League…