American sociologist, the most important black protest leader in the United States during the first half of the 20th century. He shared in the creation of the National Association for ...
American author and illustrator of children's books noted for his comic coterie of peculiar characters. In 1948 he was awarded the Newbery Medal for The Twenty-One Balloons (1947).
French critic of French and English literature whose writings on William Shakespeare, Percy Bysshe Shelley, and Lord Byron helped turn French attention toward English literature.
French writer and photographer who is chiefly known for his vivid accounts of 19th-century French life. He was a close friend of the novelist Gustave Flaubert.
married name Lady Daphne Browning English novelist and playwright, daughter of actor-manager Sir Gerald du Maurier, best known for her novel Rebecca (1938).
French-descended American family whose fortune was founded on explosive powders and textiles and who diversified later into other areas of manufacturing. Pierre-Samuel du Pont (q.v.), born in Paris, was one ...
French economist whose numerous writings were mainly devoted to spreading the tenets of the physiocratic school and whose adherence to these doctrines largely explains his conduct during his long political ...
Afrikaaner poet, pastor, biblical scholar, and the compiler of an Afrikaans Psalter (1936) that is regarded as one of the finest poetic achievements of its kind in Dutch, Flemish, or ...
South African pastor and political leader who, as the founder of the Afrikaner Bond (a bitterly anti-British political party of Dutch South Africans), was influential in generating Boer (Dutch) political ...
American biochemist and winner of the Nobel Prize for Chemistry in 1955 for the isolation and synthesis of two pituitary hormones: vasopressin, which acts on the muscles of the blood ...
a political and military pact that developed between France and Russia from friendly contacts in 1891 to a secret treaty in 1894; it became one of the basic European alignments ...
a social structure characterized by the division of society into two complementary parts called moieties. According to a strict definition, moieties are groups that are exogamous (i.e., marriage between members ...
Bantu-speaking people of the forest region of southern Cameroon living on the estuary of the Wouri River. By 1800 the Duala controlled Cameroon's trade with Europeans, and their concentrated settlement ...
in philosophy, the use of two irreducible, heterogeneous principles (sometimes in conflict, sometimes complementary) to analyze the knowing process (epistemological dualism) or to explain all of reality or some broad ...
in religion, the doctrine that the world (or reality) consists of two basic, opposed, and irreducible principles that account for all that exists. It has played an important role in ...
in mathematics, principle whereby one true statement can be obtained from another by merely interchanging two words. It is a property belonging to the branch of algebra known as lattice ...
a poem or song in Scottish Gaelic and Irish Gaelic literature. The word was used by James Macpherson for major divisions of his Ossianic verse and hence was taken to ...
in atomic physics, the relationship between the voltage (V ) applied to an X-ray tube and the maximum frequency nu of the X rays emitted from the target. It is ...
region of northeastern India, at the foot of the west Assam Himalayas. Its 3,400-square-mile (8,800-square-kilometre) area is divided by the Sankosh River into the Western and Eastern Duars. Both were ...
constituent emirate of the United Arab Emirates (formerly Trucial States or Trucial Oman). The second most populous and second largest state of the federation (area 1,510 square miles [3,900 square ...
in filmmaking, the process of adding new dialogue or other sounds to the sound track of a motion picture that has already been shot. Dubbing is most familiar to audiences ...
city, east-central New South Wales, Australia, on the Macquarie River. Visited in 1818 by the explorer John Oxley, the district received its first settlers in 1824. Founded in 1841, Dubbo ...
first secretary of the Communist Party of Czechoslovakia (Jan. 5, 1968, to April 17, 1969) whose liberal reforms led to the Soviet invasion and occupation of Czechoslovakia in August 1968.
South African minister, educator, journalist, and author of Insila ka Shaka (1930; Jeqe, the Bodyservant of King Shaka), the first novel published by a Zulu in his native language.
geographic county in the province of Leinster, east-central Ireland. It is bounded by Counties Kildare (west), Meath (west and north), and Wicklow (south) and by the Irish Sea (east). The ...
city, formally a county borough, and capital of County Dublin and of Ireland. Located in the east-central part of the country at the head of Dublin Bay on the Irish ...
oldest university in Ireland, founded in 1592 by Queen Elizabeth I of England and Ireland and endowed by the city of Dublin. When founded, it was intended that Trinity College ...
city, Moscow oblast (province), western Russia. The city lies along the Volga River where it is joined by the Moscow Canal (completed 1937). Dubna is a new city, incorporated in ...
French cardinal, leading minister in the administration of Philippe II, duc d'Orleans (regent for King Louis XV from 1715 to 1723), and architect of the Anglo-French alliance that helped maintain ...
French lawyer and political pamphleteer during the reign of Philip IV the Fair; his most important treatise, De recuperatione Terrae Sanctae (1306, "On the Recovery of the Holy Land"), dealt ...
French-born American microbiologist, environmentalist, and author whose pioneering research in isolating antibacterial substances from certain soil microorganisms led to the discovery of major antibiotics. Dubos is also known for his ...
port of Dalmatia, southeastern Croatia. Situated on the southern Adriatic coast, it is usually regarded as the most picturesque city on the Dalmatian coast and is referred to as the ...
city, seat (1834) of Dubuque county, northeastern Iowa, U.S., on the Mississippi River (bridged to East Dubuque, Illinois), opposite the junction of the Wisconsin and Illinois boundary lines. It was ...
American short-story writer and novelist who is noted as a chronicler of the struggles of contemporary American men whose lives seem inexplicably to have gone wrong.
member of the French Academy, holder of the chair in medieval history at the College de France in Paris, and one of the 20th century's most prolific and influential historians ...
Byzantine family that supplied several rulers to the empire. First prominent in the 10th century, the family suffered a setback when Constantine Ducas, son of General Andronicus Ducas, lost his ...
one of the greatest Italian painters of the Middle Ages and the founder of the Sienese school. In Duccio's art the formality of the Italo-Byzantine tradition, strengthened by a clearer ...
a Hellenized leader of the Siculi, an ancient people of Sicily, who for a short time welded the native communities of east Sicily into a powerful federation. He seized his ...
French artist who broke down the boundaries between works of art and everyday objects. After the sensation caused by "Nude Descending a Staircase, No. 2" (1912), he painted few other ...
French neurologist, who was first to describe several nervous and muscular disorders and, in developing medical treatment for them, created electrodiagnosis and electrotherapy.
historian and geographer, sometimes called the father of French history, who was the first to make critical collections of sources for national histories.
church historian, a leading figure in the 19th- and early 20th-century Roman Catholic revival of learning, who pioneered in the application of archaeological, topographical, liturgical, theological, and social studies to ...
a Belgian lace, named after Marie-Henriette, duchess of Brabant (later queen of the Belgians). It was made from c. 1840 throughout the 19th century both at Brussels and (particularly) at ...
French dramatist who made the first sustained effort to present William Shakespeare's tragedies on the French stage. Although he remodeled the tragedies to the French taste for witty, epigrammatic style ...
any of various species of relatively small, short-necked, large-billed waterfowl. In true ducks-i.e., those classified in the subfamily Anatinae-the legs are placed rearward, as in swans, rather than forward, as ...
(from Dutch doek, "cloth"), any of a broad range of strong, durable, plainwoven fabrics made originally from tow yarns and subsequently from either flax or cotton. Duck is lighter than ...
town, central Saskatchewan, Canada. It lies between the North and South Saskatchewan rivers, 33 miles (53 km) southwest of Prince Albert. Originally settled about 1870 on nearby Duck Lake, the ...
plateau in southwestern Manitoba, Canada, forming the highest part of the Manitoba Escarpment. It extends southeastward from the Saskatchewan border for 50 miles (80 km), culminating in Baldy Mountain (2,730 ...
bowling game played on a standard tenpin lane with smaller pins and balls. Duckpins are 9.4 inches (23.3 cm) tall. The ball that is used to knock the pins down ...
French physicist and inventor who in 1869 developed the so-called trichrome process of colour photography, a key 19th-century contribution to photography.
thick-walled tube in the male reproductive system that transports sperm cells from the epididymis, where the sperm are stored prior to ejaculation. Each ductus deferens ends in an enlarged portion, ...
city and administrative centre of Taymyr autonomous okrug (district), northern Krasnoyarsk kray (region), north-central Russia. A port on the lower Yenisey River, it was founded in 1667 and became a ...
metropolitan borough, metropolitan county of West Midlands, England, at the western edge of the metropolitan county. The historic town of Dudley and surrounding areas at the centre of the borough ...
