Alvar Aalto: Early work: These were the Turun Sanomat Building (newspaper office) in Turku, the tuberculosis sanatorium at Paimio, and the Municipal Library at Viipuri (now Vyborg, Russia). His plans for the last two were chosen in a competition, a common practice with public buildings in Finland. Both the office building and…

dervish, any member of a Ṣūfī (Muslim mystic) fraternity, or tariqa. Within the Ṣūfī fraternities, which were first organized in the 12th century, an established leadership and a prescribed discipline obliged the dervish postulant to serve his sheikh, or master, and to establish a rapport with him.

turf, in horticulture, the surface layer of soil with its matted, dense vegetation, usually grasses grown for ornamental or recreational use. Such turf grasses include Kentucky bluegrass, creeping bent grass, fine or red fescue, and perennial ryegrass among the popular cool-season types and Bermuda

Ctesiphon, ancient city located on the left (northeast) bank of the Tigris River about 20 miles (32 km) southeast of modern Baghdad, in east-central Iraq. It served as the winter capital of the Parthian empire and later of the Sāsānian empire. The site is famous for the remains of a gigantic

Tuscaloosa, city, seat (1819) of Tuscaloosa county, western Alabama, U.S., on the Black Warrior River about 55 miles (90 km) southwest of Birmingham. Founded in 1816 by Thomas York on land opened to settlement after the Creek War, it was named for the Choctaw chief Tuscaloosa (“Black Warrior”), who

Italian language: …the island of Corsica a Tuscan variety of Italian is spoken, though Italian is not the language of culture. Overseas (e.g., in the United States, Brazil, and Argentina) speakers sometimes do not know the standard language and use only dialect forms. Increasingly, they only rarely know the language of their…

Italian language: …the island of Corsica a Tuscan variety of Italian is spoken, though Italian is not the language of culture. Overseas (e.g., in the United States, Brazil, and Argentina) speakers sometimes do not know the standard language and use only dialect forms. Increasingly, they only rarely know the language of their…

Giorgio Vasari: …in the style of the Tuscan Mannerists and have often been criticized as being facile, superficial, and lacking a sense of colour. Contemporary scholars regard Vasari more highly as an architect than as a painter. His best-known buildings are the Uffizi in Florence, begun in 1560 for Cosimo I de’…

Tuscan order, the simplest of the five orders of Classical Roman architecture, which were codified in the Renaissance. It resembles the Doric order but has a simpler base and an unadorned

Italian literature: The Tuscan poets: Sicilian poetry continued to be written after the death of Frederick II, but the centre of literary activity moved to Tuscany, where interest in the Provençal and Sicilian lyric had led to several imitations by Guittone d’Arezzo and his followers. Although Guittone experimented…

Italian literature: The Tuscan poets: Sicilian poetry continued to be written after the death of Frederick II, but the centre of literary activity moved to Tuscany, where interest in the Provençal and Sicilian lyric had led to several imitations by Guittone d’Arezzo and his followers. Although Guittone experimented…

Apennine Range: Physiography: …of the Apennines are the Tuscan-Emilian Apennines, with a maximum height of 7,103 feet at Mount Cimone; the Umbrian-Marchigian Apennines, with their maximum elevation (8,130 feet) at Mount Vettore; the Abruzzi Apennines, 9,554 feet at Mount Corno; the Campanian Apennines, 7,352 feet at Mount Meta; the

Tuscania, town, Lazio (Latium) regione, central Italy, west of Viterbo. The ancient city was a prosperous Etruscan centre in the 3rd century bc, and Etruscan tombs have been found nearby. Until a disastrous earthquake in 1971, the town contained many relics and treasures of the Etruscan, Roman, and

Tuscania, town, Lazio (Latium) regione, central Italy, west of Viterbo. The ancient city was a prosperous Etruscan centre in the 3rd century bc, and Etruscan tombs have been found nearby. Until a disastrous earthquake in 1971, the town contained many relics and treasures of the Etruscan, Roman, and

Tuscany, regione (region), west-central Italy. It lies along the Tyrrhenian and Ligurian seas and comprises the province (provinces) of Massa-Carrara, Lucca, Pistoia, Prato, Firenze, Livorno, Pisa, Arezzo, Siena, and Grosseto. Tuscany is a transitional region occupying much of the former grand

Tuscarawas River, river rising in Summit county, northeastern Ohio, U.S., near Akron and Barberton (there dammed to form the Portage Lakes). It flows south past Massillon, Dover, and New Philadelphia and then west to join the Walhonding River near Coshocton after a course of 125 miles (201 km) to

Tuscarora, Iroquoian-speaking North American Indian tribe. When first encountered by Europeans in the 17th century, the Tuscarora occupied what is now North Carolina. They were noted for their use of indigenous hemp for fibre and medicine. Traditionally, the Tuscarora depended heavily on

Japan Trench: The 27,929-foot (8,513-metre) Tuscarora Deep (north) was once considered the deepest point in the world (subsequently found to be in the Mariana Trench).

printmaking: Stencil processes: …quite common is the so-called tusche-and-glue method, which is similar to lift-ground aquatint etching. The design is painted on the screen with tusche and, when dry, the whole screen is covered with glue. When the glue dries, the design is washed out with either kerosene or turpentine. The tusche comes…

Etruscan, member of an ancient people of Etruria, Italy, between the Tiber and Arno rivers west and south of the Apennines, whose urban civilization reached its height in the 6th century bce. Many features of Etruscan culture were adopted by the Romans, their successors to power in the peninsula. A

Etruria, Ancient country, central Italy. It covered the region that now comprises Tuscany and part of Umbria. Etruria was inhabited by the Etruscans, who established a civilization by the 7th century bc. Their chief confederation, traditionally including 12 cities, developed a culture that reached

Damocles: …story is related in Cicero’s Tusculanae disputationes (“Conversations at Tusculum”), Book V.

Benedict VIII: …several pontiffs from the powerful Tusculani family.

Tusculum, ancient Italic city (modern Frascati) in Latium, 15 miles (24 km) southeast of Rome, a favourite resort of wealthy Romans under the late republic and the empire (1st century bc–4th century ad). Tusculum was a Latin settlement during the early Iron Age (early 1st millennium bc) and was

Tuscumbia, city, seat (1870) of Colbert county, northwestern Alabama, U.S. It is situated in the Muscle Shoals area on the Tennessee River, about 65 miles (105 km) west of Huntsville, and forms with Florence, Sheffield, and the city of Muscle Shoals a four-city metropolitan area. Founded in 1817 as

ZZ Top: Two years later “Tush,” off the hit album Fandango, cracked the top 20 of the Billboard singles chart. The band’s Worldwide Texas Tour (1976)—during which they performed on a Texas-shaped stage littered with props that included cacti, snakes, and longhorn cattle—was one of the most successful concert tours…

The Knack…and How to Get It: …his dream girl, Nancy (Rita Tushingham), whom his pal attempts to seduce. Although initially perceived as innocent, Nancy proves to be surprisingly savvy in repelling the young Lothario’s charms.

Russia: The Time of Troubles: …formed in the village of Tushino, 9 miles (14 km) west of Moscow, in which the boyars and bureaucrats of the Romanov circle took leading posts. It managed to gain Cossack support and to manipulate Dmitry’s pretensions while negotiating with the Polish king Sigismund III on terms by which his…

False Dmitry: Although the second False Dmitry bore no physical resemblance to the first, he gathered a large following among Cossacks, Poles, Lithuanians, and rebels who had already risen against Shuysky. He gained control of southern Russia, marched toward Moscow, and established his headquarters (including a full court and…

Buddhism: Mythic figures in the Three Worlds cosmology: …the most important are the Tushita Heaven, where the future buddha Maitreya awaits the time for his coming to earth; the Heaven of the Thirty-three Gods, which is presided over by Inda (Sanskrit: Indra; sometimes called Sakka [Sanskrit: Shakra], a deity who plays a significant mythological role); and the Heaven…

history of Mesopotamia: The Hurrian and Mitanni kingdoms: Tushratta (c. 1365–c. 1330), the son of Shuttarna, was able to maintain the kingdom he had inherited for many years. In his sometimes very long letters—one of them written in Hurrian—to Amenhotep III and Akhenaton (1353–1336), he wrote about commerce, his desire for gold, and…

Guangxi: Guangxi until c. 1900: …minority peoples through the hereditary tusi (tribal leaders serving as the agents of Chinese government). This led to some of the bloodiest battles in Guangxi history—notably, the war with the Yao tribesmen at Giant Rattan Gorge, near Guiping, in 1465.

astronomy: The Islamic world: …two-circle mechanism (called an “al-Ṭūsī couple” by modern scholars) to produce the same phenomena in what seemed to him a physically more plausible way. Al-Ṭūsī’s student al-Shīrāzī went farther, using a minor epicycle to eliminate the need for an equant point. In the 14th century Ibn al-Shāṭir of Damascus…

Naṣīr al-Dīn al-Ṭūsī was an outstanding Persian philosopher, scientist, and mathematician. Educated first in Ṭūs, where his father was a jurist in the Twelfth Imam school, the main sect of Shīʾite Muslims, al-Ṭūsī finished his education in Neyshābūr, about 75 kilometres (50 miles) to the west. This

Naṣīr al-Dīn al-Ṭūsī was an outstanding Persian philosopher, scientist, and mathematician. Educated first in Ṭūs, where his father was a jurist in the Twelfth Imam school, the main sect of Shīʾite Muslims, al-Ṭūsī finished his education in Neyshābūr, about 75 kilometres (50 miles) to the west. This

Alejandro Jodorowsky: Later films, comic books, and psychomagic: Tusk (1980) was a children’s film, set in British colonial India, about the attachment between a young English girl and an elephant, both born on the same day. Jodorowsky was dissatisfied with the film’s technical deficiencies and later disowned it.

Chinese water deer: These tusks may exceed 5 cm (2 inches) in length. The water deer is also the only deer with inguinal glands.

Fleetwood Mac: Following the idiosyncratic Tusk (1979), group members began pursuing solo careers. Nicks hit number one with Bella Donna (1981), an album that featured singles such as “Edge of Seventeen” and the Tom Petty duet “Stop Draggin’ My Heart Around,” and Buckingham broke the Billboard Top Ten with his…

tusk shell, any of several marine mollusks of the class Scaphopoda. There are four genera of tusk shells (Dentalium is typical and most common) and more than 350 species. Most tusk shells live in fairly deep water, sometimes to depths of about 4,000 metres (13,000 feet); many deep-sea species are

Donald Tusk is a member of the centrist Civic Platform party who returned to office as the prime minister of Poland in 2023 after the country experienced some eight years of increasingly authoritarian rule by the Law and Justice party (PiS). Tusk had been the first prime minister of Poland to serve

Donald Tusk is a member of the centrist Civic Platform party who returned to office as the prime minister of Poland in 2023 after the country experienced some eight years of increasingly authoritarian rule by the Law and Justice party (PiS). Tusk had been the first prime minister of Poland to serve

Lionel Richie: Solo career success, We Are the World, and musical collaborations: …back into the spotlight with Tuskegee, a collection of his greatest hits recast as country duets and performed with Shania Twain, Tim McGraw, Rascal Flatts, Willie Nelson, and other luminaries of country music. Within just a few weeks, the album reached number

Tuskegee, city, seat of Macon county, east-central Alabama, U.S., adjacent to Tuskegee National Forest, about 40 miles (65 km) east of Montgomery. It was founded in 1833, and its name was a variation of Taskigi, a nearby Creek Indian village. Fort Decatur (built 1814), near the city on the

Tuskegee Airmen, black servicemen of the U.S. Army Air Forces who trained at Tuskegee Army Air Field in Alabama during World War II. They constituted the first African American flying unit in the U.S. military. In January 1941 the War Department formed the all-black 99th Pursuit Squadron of the

Tuskegee University, private, coeducational, historically Black institution of higher education in Tuskegee, Alabama, U.S. Its establishment as a school for training African American teachers was approved by the Alabama state legislature in 1880; the school still serves a predominantly Black

Tuskegee University, private, coeducational, historically Black institution of higher education in Tuskegee, Alabama, U.S. Its establishment as a school for training African American teachers was approved by the Alabama state legislature in 1880; the school still serves a predominantly Black

Tuskegee syphilis study, American medical research project that earned notoriety for its unethical experimentation on African American patients in the rural South. The project, which was conducted by the U.S. Public Health Service (PHS) from 1932 to 1972, examined the natural course of untreated

Of the country’s 33 accredited veterinary colleges, only one is on a historically Black campus: Tuskegee University College of Veterinary Medicine in Alabama. According to Tuskegee, more than 70 percent of Black veterinarians in the United States received a degree from its veterinary college. But

Tuskegee University, private, coeducational, historically Black institution of higher education in Tuskegee, Alabama, U.S. Its establishment as a school for training African American teachers was approved by the Alabama state legislature in 1880; the school still serves a predominantly Black

Spanish literature: The novel: It includes Esther Tusquets, Álvaro Pombo, and Javier Tomeo, together with nearly a dozen others who belong to this group chronologically if not by reason of aesthetic or thematic similarities. Tusquets is best known for a trilogy of thematically related but independent novels: El mismo mar de…

saturniid moth: Major species: yamamai) for tussah silk.

Marie Tussaud was the French-born founder of Madame Tussaud’s museum of wax figures, in central London. Her early life was spent first in Bern and then in Paris, where she learned the art of wax modeling from Philippe Curtius, whose two celebrated wax museums she inherited upon his death in 1794.

sweet William: …traced to the writings of Thomas Tusser, a 16th-century English poet. In Scotland the flower is known as stinking Willie or sour Billy.

Tutsi, ethnic group of probable Nilotic origin, whose members live within Rwanda and Burundi. The Tutsi formed the traditional aristocratic minority in both countries, constituting about 9 percent and 14 percent of the population, respectively. The Tutsis’ numbers in Rwanda were greatly reduced by

nosegay, small, hand-held bouquet popular in mid- 19th-century Victorian England as an accessory carried by fashionable ladies. Composed of mixed flowers and herbs and edged with a paper frill or greens, the arrangement was sometimes inserted into a silver filigree holder. When supplied by an

Yiddish literature: Yiddish women writers: Born in Ukraine, Malka Heifetz Tussman immigrated to the United States in 1912. She lived in Chicago; in Milwaukee, Wisconsin; and in California. She published her poems in many journals, including In zikh. Tussman’s early poetry, as evinced in her first book, Lider (1949; Poems), was written in…

bellflower: Tussock bellflower, or Carpathian harebell (C. carpatica), has lavender to white bowl-shaped, long-stalked flowers and forms clumps in eastern European meadows and woodlands. Fairy thimbles (C. cochleariifolia), named for its deep nodding blue to white bells, forms loosely open mats on alpine screes. Bethlehem stars…

grassland: Origin: …of the Southern Hemisphere is tussock grassland, dominated by tussock or bunch grasses that develop pedestals of matted stems, giving the vegetation a lumpy appearance. Tussock grasslands occur at various latitudes. In the tropics they are found above the forest limit on some high mountains—e.g., in New Guinea and East…

tussock moth, (family Lymantriidae), any of a group of moths (order Lepidoptera), the common name for which is derived from the hair tufts, or tussocks, found on most larval forms. The family, which occurs in both Eurasia and the New World, includes several species that are destructive to shade and

saturniid moth: Major species: yamamai) for tussah silk.

Saudi Arabia: Struggle with the Ottomans: …command of Muḥammad ʿAlī’s son Ṭūsūn. Saud inflicted a severe defeat on the invaders, but reinforcements enabled Ṭūsūn to occupy Mecca and Medina in 1812. The following year, Muḥammad ʿAlī assumed command of the expeditionary force in person. In the east, Britain severely curbed the maritime activities of the Qawāsim…

Anatolia: The neo-Hittite states from c. 1180 to 700 bce: King Tutammu of Patina, who had been strategically safe as long as Arpad had not been conquered, also was defeated and his land turned into an Assyrian province. In 738 Samal, Milid, Kaska, Tabal, and Tuwanuwa (classical Tyana) came to terms with the Assyrian king. The…

Taoism: The Lingbao scriptures and liturgies: The Tutanjai (“Mud and Soot Retreat, or Retreat of Misery”) was a ceremony of collective contrition, with the purpose of fending off disease, the punishment of sin, by prior confession; in Chinese civil law, confession resulted in an automatic reduction or suspension of sentence. These and…

Tutankhamun was a king of ancient Egypt (reigned c. 1333–24 bce), known chiefly for his intact tomb, KV 62 (tomb 62), discovered in the Valley of the Kings in 1922. During his reign, powerful advisers restored the traditional Egyptian religion and art, both of which had been set aside by his

Tutankhamun was a king of ancient Egypt (reigned c. 1333–24 bce), known chiefly for his intact tomb, KV 62 (tomb 62), discovered in the Valley of the Kings in 1922. During his reign, powerful advisers restored the traditional Egyptian religion and art, both of which had been set aside by his

Tutankhamun was a king of ancient Egypt (reigned c. 1333–24 bce), known chiefly for his intact tomb, KV 62 (tomb 62), discovered in the Valley of the Kings in 1922. During his reign, powerful advisers restored the traditional Egyptian religion and art, both of which had been set aside by his

Tutankhamun was a king of ancient Egypt (reigned c. 1333–24 bce), known chiefly for his intact tomb, KV 62 (tomb 62), discovered in the Valley of the Kings in 1922. During his reign, powerful advisers restored the traditional Egyptian religion and art, both of which had been set aside by his

Antonio Benítez Rojo: …first book, the short-story collection Tute de reyes (“King’s Flush”), won Cuba’s major literary award, the Casa de las Américas Prize, in 1967, and in 1969 he won the Writers’ Union annual short-story prize with his volume El escudo de hojas secas (“The Shield of Dry Leaves”).

devolution: …of power, known as the tutelle (“supervision”). To somewhat reduce the scope of power exercised by the central government, the socialist government of Pres. François Mitterrand (1981–95), through one of its first major pieces of legislation, dramatically expanded the authority of the three layers of subnational government and removed the…

Mughal painting: …is the illustrated folktale collection Tutinamah (“Tales of a Parrot”) at the Cleveland Museum of Art in Ohio.

Tuticorin, city, southern Tamil Nadu state, southern India. The city lies on the Gulf of Mannar of the Indian Ocean, about 25 miles (40 km) east of Tirunelveli, to which it is connected by road and rail. It developed from a small fishing village into a flourishing Portuguese colony in the 16th

bass: History: …by American musician and inventor Paul Tutmarc. Tutmarc’s instrument, known as the Model 736 Bass Fiddle, was produced and sold by Audiovox Manufacturing Company starting in 1935. The Model 736 had a solid body made of black walnut, four strings, a single pickup, and 16 frets along an ebony fingerboard.…

Brunei: Relief, drainage, and soils: …is drained by the Belait, Tutong, and Brunei rivers in the western segment and by the Pandaruan and Temburong rivers in the east; all flow generally northward to the South China Sea. The Belait is the largest river in the country. The soils of Brunei are deeply weathered, highly leached,…

Roman law: Family: …males, 12 for females) needed tutores if they were not under patria potestas. Such tutors could be appointed under the will of the father or male head of the household. Failing such an appointment, the guardianship went to certain prescribed relatives; if there were no qualified relations, the magistrates appointed…

Roman law: Family: …males, 12 for females) needed tutores if they were not under patria potestas. Such tutors could be appointed under the will of the father or male head of the household. Failing such an appointment, the guardianship went to certain prescribed relatives; if there were no qualified relations, the magistrates appointed…

computer-assisted instruction: …data or they fill a tutorial role in which the student is tested on comprehension.

Tutsi, ethnic group of probable Nilotic origin, whose members live within Rwanda and Burundi. The Tutsi formed the traditional aristocratic minority in both countries, constituting about 9 percent and 14 percent of the population, respectively. The Tutsis’ numbers in Rwanda were greatly reduced by

tropical cyclone: Favourable wind systems: …is these features, known as tropical upper tropospheric troughs, or TUTTs, that are responsible for the large number of tropical cyclones in the western Pacific.

Sebastiano Serlio: …wrote the influential architecture treatise Tutte l’opere d’architettura, et prospetiva (1537–75; “Complete Works on Architecture and Perspective”).

Little Richard: …solid rhythm-and-blues band, howled “Tutti Frutti,” with its unforgettable exhortation, “A wop bop a loo bop, a lop bam boom!” In the year and a half that followed, he released a string of songs on Specialty Records that sold well among both black and white audiences: “Rip It Up,”…

Natalia Ginzburg: title, A Light for Fools), Ginzburg portrayed the crises of the Italian younger generation during the fascist period. Lessico famigliare (1963; Family Sayings) is a novelistic memoir of her upbringing and career. Ginzburg’s novels of the 1970s and ’80s pessimistically explore the dissolution of family ties…

MacKenzie Scott is an American billionaire, philanthropist, and novelist. According to Forbes magazine, in March 2025 she had a net worth of $28.2 billion, making her the 68th richest person in the world and the ninth richest woman in the United States. In 1994 she founded Amazon.com, the world’s

Roberto Benigni: In 2006 Benigni premiered TuttoDante (“All About Dante”), a one-man show about Dante’s The Divine Comedy in which he ebulliently interpreted and recited excerpts from the poem. After the show proved vastly popular in Italy, he performed it internationally. Benigni returned to movie screens in Woody Allen’s ensemble comedy…

Tuticorin, city, southern Tamil Nadu state, southern India. The city lies on the Gulf of Mannar of the Indian Ocean, about 25 miles (40 km) east of Tirunelveli, to which it is connected by road and rail. It developed from a small fishing village into a flourishing Portuguese colony in the 16th

tutu, standard skirt worn by female ballet dancers, consisting of four or five layers of silk or nylon frills; the skirt is attached to a sleek-fitting bodice. (Originally tutu designated a short, trouserlike petticoat worn under a dancer’s costume.) The prototype of the Romantic tutu, extending to

Desmond Tutu was a South African Anglican cleric who in 1984 received the Nobel Prize for Peace for his role in the opposition to apartheid in South Africa. (Read Desmond Tutu’s Britannica entry on the South African truth commission.) Tutu was born of Xhosa and Tswana parents and was educated in

Osei Tutu was the founder and first ruler of the Asante (Ashanti) empire (in present-day Ghana) who as chief of the small state of Kumasi came to realize (c. 1680–90) that a fusion of the small separate Asante kingdoms was necessary to withstand their powerful Denkyera neighbours to the south. Osei

Tutub, modern Khafājī, ancient Sumerian city-state located in the Diyālā Valley east of Baghdad, Iraq. Tutub was of greatest significance during the Early Dynastic Period (c. 2900–2334 bc), and important remains have been found dating to that period—particularly the temple oval. Tutub was excavated

Tutuila Island, largest island in American Samoa, in the south-central Pacific Ocean, about 1,600 miles (2,600 km) northeast of New Zealand. Some 18 miles (30 km) long and 6 miles (10 km) across at its widest point, the island has a densely wooded, broken, mountainous backbone culminating at a

Uxmal: …Cocom of Mayapán, was the Tutul Xiu.

Amos Tutuola was a Nigerian author of richly inventive fantasies. He is best known for the novel The Palm-Wine Drinkard and His Dead Palm-Wine Tapster in the Deads’ Town (1952), which was the first Nigerian book to achieve international fame. Tutuola had only six years of formal schooling and wrote

Julia Strudwick Tutwiler was an American educator and reformer who was responsible for making higher education in Alabama more readily available to women through her association with several colleges and universities. She was also active in the state’s prison reform. Tutwiler attended a school

Austronesian languages: Early classification work: …attributed to the Dutch-Indonesian scholar H.N. van der Tuuk, whose comparisons during the 1860s and ’70s showed that various languages in the Philippines and Indonesia could be related to a common ancestor through recurrent similarities in the forms of words. Van der Tuuk’s central achievement in comparative linguistics was the…

Ulaanbaatar: It is situated on the Tuul River on a windswept plateau at an elevation of 4,430 feet (1,350 metres). The city originated as a seasonal migratory abode of the Mongolian princes and in 1639 finally attained permanence on the present site with the construction of Da Khure Monastery. This building…

Paavo Haavikko: In his next collection, Tuuliöinä (1953; “In Windy Nights”), he used the wind as the central metaphor for contemporary anxiety and alienation, and in Synnyinmaa (1955; “Fatherland”) and Lehdet lehtiä (1958; “Leaves Are Leaves”) he explores the creative process and finds it is the task of the poet to…

Tyva, republic in south-central Siberia, Russia. Tyva borders northwestern Mongolia and occupies the basin of the upper Yenisey River. Its relief consists of two broad basins, the Tyva and Todzha, drained by two main tributaries of the Yenisey River. High mountain ranges, including the Eastern

Yenisey River: Physiography: …from the left and the Tuba River from the right. Fed chiefly by rainwater and melting snow, they begin their spring high water in late April and are swollen by summer rain floods. The Angara, on the other hand, is highly regulated by its source—the huge Lake Baikal—and rarely experiences…

Tyvan, any member of an ethnolinguistic group inhabiting the autonomous republic of Tyva (Tuva) in south-central Russia; the group also constitutes a small minority in the northwestern part of Mongolia. The Tyvans are a Turkic-speaking people with Mongol influences. They live among the headwaters

Silurian Period: Reef mounds and coral biostromes: …is represented by the low-diversity Tuvaella (brachiopod) fauna mostly restricted to Mongolia and adjacent parts of Siberia. The Tuvaella fauna also has been discovered in northwestern China, which apparently represents a more southern extension, since it straddled the paleoequator during the Silurian Period.

Tuvalu, country in the west-central Pacific Ocean. It is composed of nine small coral islands scattered in a chain lying approximately northwest to southeast over a distance of some 420 miles (676 km). The de facto capital is the village of Vaiaku, where most government offices are located. It is