in Greco-Roman antiquity, the ruler of a principality; originally the ruler of one-quarter of a region or province. The term was first used to denote the governor of any of ...
vacuum-type electron tube with four electrodes. In addition to the cathode filament, anode plate, and control grid, as in the triode, an additional grid, the screen grid, is placed between ...
people indigenous to the narrow central section of Timor, easternmost of the Lesser Sunda Islands, Indonesia. The Tetum numbered more than 300,000 in the late 20th century. Of Melanesian and ...
German Dominican friar whose preaching on indulgences, considered by many of his contemporaries to be an abuse of the sacrament of penance, sparked Martin Luther's revolt.
important Celtic deity, one of three mentioned by the Roman poet Lucan in the 1st century AD, the other two being Esus ("Lord") and Taranis ("Thunderer"). According to later commentators, ...
westernmost escarpment of the Weser Hills (Weserbergland) in northeastern North Rhine-Westphalia Land (state), northern Germany. Its wooded limestone and sandstone ridges curve from the Ems River valley southeastward in an ...
religious order that played a major role in eastern Europe in the late Middle Ages and that underwent various changes in organization and residence from its founding in 1189/90 to ...
last Ottoman grand vizier (chief minister); he was sympathetic to the nationalist movement of Mustafa Kemal (later known as Ataturk), which resisted the Allied occupation of Anatolia after World War ...
tributary of the River Tweed, southern Scotland. Its valley, Teviotdale, constitutes a large part of the historic county of Roxburghshire. The river, rich in trout, flows northeast past Hawick to ...
town ("parish"), Tewkesbury borough, administrative and historic county of Gloucestershire, England, at the confluence of the Severn and Warwickshire Avon rivers. A small Benedictine abbey was founded in 715 on ...
borough (district), administrative county of Gloucestershire, England, north of the city of Gloucester. Most of the borough belongs to the historic county of Gloucestershire, but the villages of Teddington and ...
(May 4, 1471), in the English Wars of the Roses, the Yorkist king Edward IV's final victory over his Lancastrian opponents. Edward, who had displaced the Lancastrian Henry VI in ...
town (township), Middlesex county, northeastern Massachusetts, U.S. Located just southeast of Lowell and 21 miles (34 km) north of Boston, the town occupies a marshy lowland between the Concord and ...
American sprinter who won five medals at the 1900 Olympics in Paris. He earned gold medals in the 200-metre race and the 400-metre hurdles, silver medals in the 100- and ...
emperor of Ethiopia (1855-68) who has been called Ethiopia's first modern ruler. Not only did he reunify the various Ethiopian kingdoms into one empire, but he also attempted to focus ...
former U.S.-based oil and petrochemical corporation. Founded in 1901, by the late 20th century it was one of the world's largest petroleum companies in terms of sales. The name Texaco ...
dual municipality astride the Texas-Arkansas boundary, U.S. The city also lies near the Louisiana and Oklahoma state lines. First settled in 1874 at the junction of the Cairo and Fulton ...
constituent state of the United States of America. With the fourth longest seacoast among the 48 coterminous states and a large shipping industry to match, it occupies the south-central segment ...
state university system based in College Station, Texas, U.S., formed in 1948 as an outgrowth of the Agricultural and Mechanical College of Texas, which was established in 1871 and opened ...
Texas railroad merged into the Missouri Pacific in 1976. Chartered in 1871, it absorbed several other Texas railroads and extended service to El Paso in the west and New Orleans, ...
private, coeducational institution of higher education in Fort Worth, Texas, U.S. It is affiliated with the Christian Church (Disciples of Christ). It grants about 14 undergraduate degrees in more than ...
city, Galveston county, Texas, U.S. It is part of the Galveston-Texas City complex on Galveston Bay. Texas City is a deepwater port on channels to the Gulf of Mexico, and ...
a loosely organized military force that policed Texas from the time of their initial organization in the 1830s to their merger with the state highway patrol in 1935. The first ...
public, coeducational institution of higher learning in Houston, Texas, U.S. A historically black university, it continues to have an enrollment that is predominantly African American. It grants undergraduate, graduate, and ...
public, coeducational institution of higher learning in Lubbock, Texas, U.S. In addition to programs leading to baccalaureate degrees, it offers about 100 master's and 60 doctoral degree programs. The main ...
(1869), U.S. Supreme Court case in which it was held that the United States is "an indestructible union" from which no state can secede. In 1850 the state of Texas ...
public, coeducational institution of higher learning in Denton, Texas, U.S. It focuses on liberal arts and professional studies. Texas Woman's University is divided into the University General Divisions, the Institute ...
state university system based in Austin, Texas, U.S. Branch campuses are located in Arlington (founded 1895), El Paso (1913), Edinburg (Pan American branch; 1927), Richardson (Dallas branch; 1961), Odessa (Permian ...
city built in the present-day Valley of Mexico by the Acolhuas, a pre-Columbian people of the Nahuatl-speaking group of tribes, which gained mastery of the valley after the collapse of ...
lake in central Mexico. Originally one of the five lakes contained in Anahuac, or the Valley of Mexico, Texcoco has been drained via channels and a tunnel to the Panuco ...
American multi-industry company that pioneered the conglomerate concept. Its present-day core organization includes aircraft, automotive, and industrial manufacturing segments. The firm was established in 1923 as a textile maker and ...
the technique of restoring texts as nearly as possible to their original form. Texts in this connection are defined as writings other than formal documents, inscribed or printed on paper, ...
the concrete, physical elements of prose or poetry that are separate from the structure or argument of the work. Such elements include metaphor, imagery, metre, and rhyme. The distinction between ...
village, northwestern Lesotho, 19 miles (31 km) northeast of Maseru, on the country's main north-south road. Named after the Teja-Tejane ("Quicksands") River that flows south of the village, Teyateyaneng is ...
(Nahuatl: "Smoking Mirror"), god of the Great Bear constellation and of the night sky, one of the major deities of the Aztec pantheon. Tezcatlipoca's cult was brought to central Mexico ...
city, north-central Assam state, northeastern India. Situated along the Brahmaputra River, it is a trade centre for tea, rice, and other crops grown in the surrounding agricultural area. There is ...
river in northwestern Laos, one of the 12 principal tributaries of the Mekong River. The Tha River rises on the Chinese frontier and flows generally southwestward in deep, narrow valleys ...
site and sandstone plateau (elevation 5,919 feet [1,804 m]) in the foothills of the southern African state of Lesotho. It is located about 15 miles (24 km) east of Maseru, ...
mountain peak (11,425 feet [3,482 m]) in the Drakensberg and the highest in Africa south of Mount Kilimanjaro. The peak lies in Lesotho, an independent country entirely within South Africa, ...
iron ore mine and town, Northern province, South Africa, near the Botswana border. The name means "mountain of iron." Thabazimbi is situated in remote, semiarid country, and its superior-grade hematite ...
English novelist whose reputation rests chiefly on Vanity Fair (1847-48), a novel of the Napoleonic period in England, and The History of Henry Esmond, Esq. (1852), set in the early ...
town, northern Vietnam. Thai Binh is a market centre on the Tra Ly River and is connected by road with Hanoi, 53 miles (85 km) northwest. The surrounding region is ...
the standard spoken and literary language of Thailand, belonging to the Tai language family of Southeast Asia. It is based largely on the dialect of Bangkok and its environs in ...
city, north-central Vietnam. The city is located on the right bank of the Cau River, which flows southeastward into the Gulf of Tonkin, and is connected with Haiphong by river ...
country located in the centre of mainland Southeast Asia. Its area of 198,115 square miles (513,115 square kilometres) consists of two broad geographic areas: a larger section in the north ...
inlet of the South China Sea bordering Thailand (southwest through north), Cambodia, and southern Vietnam (northeast). The Gulf of Thailand is 300 to 350 miles (500 to 560 km) wide ...
Athenian courtesan who traveled with the army of Alexander the Great in its invasion of Persia. She is chiefly known from the story that represents her as having persuaded Alexander ...
central section of the Sindh Sagar Doab (tract), Punjab province, Pakistan, lying between the Indus and the Jhelum and Chenab rivers. Formerly desert, it is now irrigated by canals from ...
either of a pair of large, ovoid organs that form most of the lateral walls of the third ventricle of the brain. The thalamus translates neural impulses from various receptors ...
group of blood disorders characterized by a deficiency of hemoglobin, the blood protein that transports oxygen to the tissues. Thalassemia is caused by genetically determined abnormalities in the synthesis of ...
American film executive called the "boy wonder of Hollywood" who, as the production manager of MGM, was largely responsible for that studio's prestigious reputation.
philosopher renowned as one of the legendary Seven Wise Men, or Sophoi, of antiquity (see philosophy, Western: The pre-Socratic philosophers). He is remembered primarily for his cosmology based on water ...
in Greek religion, one of the nine Muses, patron of comedy; also, according to the Greek poet Hesiod, a Grace (one of a group of goddesses of fertility). She is ...
compound in medicine initially used as a sedative and an antiemetic until the discovery that it caused severe fetal malformations. Thalidomide was developed in West Germany in the mid-1950s and ...
(Tl), chemical element, metal of main Group IIIa, or boron group, of the periodic table, poisonous, chiefly univalent, and of limited commercial value. Like lead, thallium is a soft, low-melting ...
plant body of algae, fungi, and other lower organisms formerly assigned to the obsolete group Thallophyta. A thallus is composed of filaments or plates of cells and ranges in size ...
German Communist leader and twice presidential candidate during the Weimar Republic (1919-33), who was chiefly responsible for molding the German Communist Party (KPD; Kommunistische Partei Deutschlands), the most powerful communist ...
river in southern Ontario, Canada. The Thames is 160 miles (260 km) long. It rises north-northwest of Woodstock, in the uplands between Lakes Huron and Erie, and flows southwest past ...
weapon inlaid with brass and silver wire and inscribed with runes, discovered in 1857 near London in the bed of the River Thames. Probably carved in the 8th or 9th ...
tunnel designed by Marc Isambard Brunel and built under the River Thames in London. Drilled from Rotherhithe (in the borough of Southwark) to Wapping (now in Tower Hamlets), it was ...
(Oct. 5, 1813), in the War of 1812, decisive U.S. victory over British and Indian forces in Ontario, Canada, enabling the United States to consolidate its control over the Northwest.
chief river of southern England. Rising in the Cotswold Hills, its basin covers an area of approximately 5,500 square miles (14,250 square km). The traditional source at Thames Head, which ...
in ancient Arabia, tribe or group of tribes that seem to have been prominent from about the 4th century BC to the first half of the 7th century AD. Although ...
ancient Roman city, the site of which, at present-day Timgad, on the high plateau north of the Aures Mountains in northeastern Algeria, offers the most extensive and best-preserved Roman remains ...
in Greek mythology, a Thracian poet who loved the beautiful youth Hyacinthus (q.v.). Thamyris' attentions, however, were rivaled by those of the god Apollo, who jealously reported to the Muses ...
