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Olsen, Tillie ... Omsk
Olsen, Tillie
American author known for her powerful fiction about the inner lives of the working poor, women, and minorities.
Olson, Charles
avant-garde poet and literary theorist, notable for his influence on American poetry during the late 1950s.
Olson, Elder
American poet, playwright, and literary critic. He was a leading member of the Neo-Aristotelian, or "critical pluralist," school of critical theory that came to prominence in the 1940s at the University of Chicago.
Olsztyn
city, capital of Warminsko-Mazurskie wojewodztwo (province), northeastern Poland. It lies along the Lyna River in the Masurian lake district. The city serves as a trade centre, with major rail and road connections, for the lake district. The ...
Olt
judet (county), south-central Romania. It is bounded on the south by Bulgaria. The sub-Carpathian Mountains lie in the northern portion of the county, overlooking settlement areas in intermontane valleys and lowlands. The eastward-flowing Danube River and the southeastward-flowing Olt and ...
Olt Defile
defile in south-central Romania. The defile was cut into the Transylvanian Alps (Southern Carpathians) by the Olt River. It was particularly important during the Roman occupation (1st century BC to the 2nd century AD), when the Romans built a road ...
Olt River
river, rising close to the headwaters of the Mures River, in the Ciuc Depression, east central Romania, at an elevation of 5,900 feet (1,800 m); it flows generally southwest and then south for 420 miles (670 km), entering the Danube ...
Olybrius
Western Roman emperor from April to November 472.
Olympia
city, capital of Washington, U.S., seat (1852) of Thurston county, on Budd Inlet and Capitol Lake (at the south end of Puget Sound), at the mouth of the Deschutes River, 29 miles (47 km) southwest of Tacoma. Laid out in ...
Olympia
ruined ancient sanctuary, home of the ancient Olympic Games, and former site of the massive Statue of Zeus, which had been ranked as one of the Seven Wonders of the World. Olympia is located near the western coast of the ...
Olympias
wife of Philip II of Macedonia and mother of Alexander the Great. She had a passionate and imperious nature, and she played important roles in the power struggles that followed the deaths of both rulers.
Olympic Airways
Greek airline founded on April 6, 1957, by the Greek shipowner Aristotle Onassis (1906?-75) but, from 1975, wholly owned by the Greek government. Services from Greece into western Europe began in 1957, and by 1980 services extended throughout Greece and ...
Olympic Games
athletic festival that originated in ancient Greece and was revived in the late 19th century. Before the 1970s the Games were officially limited to competitors with amateur status, but in the 1980s many events were opened to professional athletes. Currently ...
Olympic Mountains
segment of the Pacific mountain system of western North America. They extend across the Olympic Peninsula south of the Juan de Fuca Strait and west of Puget Sound in northwestern Washington, U.S. The mountains began to form about 35 million ...
Olympic National Park
national park, northwestern Washington, U.S., established in 1938 to preserve the Olympic Mountains and their magnificent forests and wildlife. The park, which covers 1,442 square miles (3,735 square km), includes a strip of Pacific Northwest shoreline geographically separated from the ...
Olympio, Sylvanus
nationalist politician and first president of Togo who was the first presidential victim of a wave of military coups that occurred in Africa in the 1960s.
Olympiodorus The Younger
a Neoplatonist philosopher who is famous for having maintained the Platonic tradition in Alexandria after the Byzantine emperor Justinian had suppressed the Greek Academy at Athens and other pagan schools in AD 529. Olympiodorus' extant works include lucid and valuable ...
Olympus Mons
volcano on the planet Mars, the highest point on the planet and the largest known volcano in the solar system. Centred at 19° N, 133° W, Olympus Mons consists of a central edifice 21 km (13 miles) high and 540 ...
Olympus, Mount
mountain peak, the highest (9,570 feet [2,917 m]) in Greece. It is part of the Olympus massif near the Gulf of Thermai of the Aegean Sea and lies astride the border between Macedonia and Thessaly. It is also designated as ...
Olynthus
ancient Greek city situated on the Chalcidice Peninsula of northwestern Greece. It lay about 1.5 miles (2.5 km) inland from the Gulf of Torone of the Adriatic Sea. A Thracian people called the Bottiaeans inhabited Olynthus until 479 BC, when ...
Om
in Hinduism and other religions chiefly of India, a sacred syllable that is considered to be the greatest of all the mantras, or sacred formulas. The syllable Om is composed of the three sounds a-u-m (in Sanskrit, the vowels a ...
Omagh
town and seat of Omagh district, Northern Ireland. Situated on the River Strule, Omagh is a market, shopping, and light-manufacturing centre for the district. Traditional crafts (such as table linens and crochet lace) continue to be produced in the town. ...
Omagh
district (established 1973), formerly in County Tyrone, Northern Ireland. It covers 434 square miles (1,125 square km) of rolling lowlands and hills and is bordered by the districts of Strabane to the north, Magherafelt and Cookstown to the east, Dungannon ...
Omaha
city, Nebraska, U.S., the port of entry and seat of Douglas county. Omaha is situated in the eastern part of the state and on the west bank of the Missouri River, opposite Council Bluffs, Iowa. It was founded in 1854 ...
Omaha
North American Plains Indian people of the Dhegiha branch of the Siouan language stock. With the other members of this subgroup (the Osage, Ponca, Kansa, and Quapaw [qq.v.]), the Omaha migrated westward from the Atlantic coast. An early settlement was ...
Omaha Beach
second beach from the west among the five landing areas of the Normandy Invasion of World War II. It was assaulted on June 6, 1944 (D-Day of the invasion), by units of the U.S. 29th and 1st infantry divisions, many ...
Omalius d'Halloy, Jean-Baptiste-Julien d'
Belgian geologist who was an early proponent of evolution.
Oman
country occupying the southeastern coast of the Arabian Peninsula. It is bounded to the southwest by Yemen, to the south and east by the Arabian Sea, to the north by the Gulf of Oman, to the northwest by the United ...
Oman, Gulf of
northwest arm of the Arabian Sea, between the eastern portion (Oman) of the Arabian Peninsula to the southwest and Iran to the north. The gulf is 200 miles (320 km) wide between Cape al-Hadd in Oman and Gwadar Bay on ...
Oman, John Wood
British Presbyterian theologian.
Omar Khayyam
Persian mathematician, astronomer, and poet, renowned in his own country and time for his scientific achievements but chiefly known to English-speaking readers through the translation of a collection of his roba'iyat ("quatrains") in The Rubaiyat of Omar ...
Ombre
card game for three players, fashionable in Europe in the 17th century and into the 18th but now practically obsolete. It was similar to Whist, involving bidding, trump suit, and taking tricks. Originally played with the Spanish packs of 40 ...
ombres chinoises
(French: "Chinese shadows"), European version of the Chinese shadow-puppet show, introduced in Europe in the mid-18th century by returning travelers. Soon adopted by French and English showmen, the form gained prominence in the shows of the French puppeteer Dominique Seraphin, ...
ombudsman
legislative commissioner for investigating citizens' complaints of bureaucratic abuse. The office originated in Sweden in 1809-10 and has been copied in various forms in Scandinavia, New Zealand, the United Kingdom, Germany, and Israel and in certain states in the United ...
Omdurman
one of the Three Towns (with Khartoum and Khartoum North), east-central Sudan. Situated on the left bank of the main Nile River just below the confluence of the Blue and White Niles, Omdurman was an insignificant riverine village until the ...
Omdurman, Battle of
(Sept. 2, 1898), decisive military engagement in which Anglo-Egyptian forces, under Major General Sir Herbert Kitchener (later Lord Kitchener), defeated the forces of the Mahdist leader 'Abd Allah and thereby won Sudanese territory that the Mahdists had dominated since 1881.
Ome
city, Tokyo to (metropolis), east-central Honshu, Japan, on the Tama River. An early trade centre and post town, it was known as a weaving centre for cotton textiles. Other traditional industries included the production of lumber and ...
Omega Centauri
(catalog number NGC 5139), the brightest globular star cluster. It is located in the southern constellation Centaurus. It has a magnitude of 3.7 and is visible to the unaided eye as a faint luminous patch. Omega Centauri is about 17,000 ...
Omegna, Roberto
motion picture cameraman, director, and producer of documentaries, one of the pioneers of the Italian cinema. His thorough research and filmmaking skills place him in the forefront of early documentarians.
omen
observed phenomenon that is interpreted as signifying good or bad fortune. In ancient times omens were numerous and varied and included, for instance, lightning, cloud movements, the flight of birds, and the paths of certain sacred animals. Within each type ...
Ometecuhtli
(Nahuatl: "Two-Lord"), Aztec deity, the Lord of Duality, or Lord of Life, who represented one aspect of the cosmic duality of the Aztec tradition. Along with Omecihuatl, Ometecuhtli resided in Omeyocan ("the place two," or "double heaven"), the 13th and ...
Ometepe Island
island in southwestern Nicaragua, the largest island in Lake Nicaragua. Ometepe actually consists of two islands joined by a narrow isthmus 2 miles (3 km) in length. Their combined area is about 150 square miles (400 square km). The larger, ...
ommochrome
any of a group of biological pigments (biochromes) conspicuous in the eyes of insects and crustaceans as well as in the changeable chromatophores (pigment-containing cells) in the skin of cephalopods. Although ommochromes, which are derived from the breakdown of the ...
omnivore
animal with wide food preferences, which can eat both plant and animal matter. Animals that are omnivorous frequently lack distinct specializations in their food-gathering structures and behaviour. Many small birds and mammals are omnivorous; deer mice and mockingbirds have diets ...
Omo
site of paleoanthropological excavations along the southern part of the Omo River in southwestern Ethiopia. Hominin (of human lineage) fossils unearthed there between 1967 and 1974 consist of about 200 teeth, four jaws, a partial skeleton, parts of two skulls, ...
Omoto
religious movement of Japan that had a large following in the period between World War I and World War II and that served as a model for numerous other sects in that country. The teaching of Omoto is based on ...
Omotoso, Kole
Nigerian novelist, playwright, and critic who wrote from a Yoruba perspective and coupled the folklore he learned as a child with his adult studies in Arabic and English. His major themes include interracial marriage, comic aspects of the Biafran-Nigerian conflict, ...
Omphalea
genus of tropical shrubs or trees of the spurge family (Euphorbiaceae), comprising 15 species; 12 are native to the Americas, 3 to the Old World. O. triandra, the Jamaican cobnut, or pop nut, is native to the West Indies and ...
Omri
(reigned 876-869 or c. 884-c. 872 BC), king of Israel, the father of Ahab.
Omsk
oblast (province), west central Russia, covering an area of 53,900 sq mi (139,700 sq km) in the basin of the middle Irtysh River. Its entire surface is an extremely flat plain, with extensive marshes and peat bogs in the north ...
Omsk
city and administrative centre of Omsk oblast (province), west-central Russia, on the Irtysh River at its junction with the Om. Omsk, founded in 1716 as a stronghold at the eastern end of the Ishim fortified line between the Tobol and ...
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