Arab Feminist Union (AFU), transnational organization of feminist associations from Arab countries, which first convened in 1944. The Arab Feminist Union (AFU) focused on achieving social and political gender equality while promoting Arab nationalism. The Egyptian Feminist Union (EFU) and its

Arab Fund for Economic and Social Development, Arab League fund designed to promote economic and social development of Arab countries. Established in May 1968, the fund commenced operations in 1972 and serves 20 Arab countries and the Palestine Liberation Organization. By financing development

Palestine: The Arab Revolt: …Arab political parties formed an Arab Higher Committee presided over by the mufti of Jerusalem, Amin al-Husseini. It called for a general strike, nonpayment of taxes, and the closing of municipal governments (although government employees were allowed to stay at work) and demanded an end to Jewish immigration, a ban…

Arab integration, efforts aimed at achieving closer cooperation and assimilation between different Arab countries and subregions. Depending on the context in which the concept is used, integration could be meant as political, economic, or institutional. The term has been used in various frameworks,

Damascus: Cultural life: The prestigious Arabic Language Academy of Damascus (1919) is a bastion of Arabic language, working both to preserve and modernize the language. The National Museum, established in 1936, boasts an extraordinary collection of artifacts from across the country, representing six millennia of civilization. A military museum occupies…

Arab League, regional organization of Arab states in the Middle East and parts of Africa, formed in Cairo on March 22, 1945, as an outgrowth of Pan-Arabism. The founding member states were Egypt, Syria, Lebanon, Iraq, Transjordan (now Jordan), Saudi Arabia, and Yemen. Other members are Libya

Arab Legion, police force raised in 1923 by British Lieut. Col. Frederick Gerard Peake (who had served with T.E. Lawrence’s Arab forces in World War I), in what was then the British protectorate of Transjordan, to keep order among Transjordanian tribes and to safeguard Transjordanian villagers from

flag of Egypt: The 1952 revolt established the Arab Liberation Flag, which had red-white-black horizontal stripes and a gold eagle. That flag was often flown beside the national flag but did not itself have official status; nevertheless, its design was reflected in the official 1958 national flag of the United Arab Republic, where…

Adib al-Shishakli: …August 1952 he launched the Arab Liberation Movement, which was to be a mass-based political party under his leadership. No politicians of importance joined this organization, and most united against it. Thus weakened, Shishakli was overthrown by a military revolt that drove him into exile in February 1954.

Algeria: Relations in North Africa: The Arab Maghreb Union (AMU), established in 1989, not only improved relations between the Maghreb states—Algeria, Libya, Mauritania, Morocco, and Tunisia—but also underscored the need for concerted policies. The AMU sought to bring the countries closer together by creating projects of shared interests. Initially there was…

Algeria: Relations in North Africa: The Arab Maghreb Union (AMU), established in 1989, not only improved relations between the Maghreb states—Algeria, Libya, Mauritania, Morocco, and Tunisia—but also underscored the need for concerted policies. The AMU sought to bring the countries closer together by creating projects of shared interests. Initially there was…

Arab Monetary Fund, fund that aims to assist its participants, nearly all of the members of the Arab League, by developing their capital markets, balancing payment difficulties, and helping with foreign-exchange rates. Established in April 1976, the agreement entered into force in February 1977.

Arab oil embargo, temporary cessation of oil shipments from the Middle East to the United States, the Netherlands, Portugal, Rhodesia, and South Africa, imposed by oil-producing Arab countries in October 1973 in retaliation for support of Israel during the Yom Kippur War; the embargo on the United

Arab Peace Initiative, historic proposal by Abdullah of Saudi Arabia for Arab states to recognize Israel and normalize relations with the country in exchange for an independent Palestinian state in the West Bank and the Gaza Strip. Endorsed by all 22 Arab League states during the organization’s

Organization of Arab Petroleum Exporting Countries (OAPEC), Arab organization formed in January 1968 to promote international economic cooperation within the petroleum industry. Chairmanship rotates annually; meetings occur twice yearly. Member countries include Algeria, Bahrain, Egypt, Iraq,

keffiyeh: Political symbol: During the 1936–39 Arab Revolt against the British mandate, the keffiyeh was used to conceal the identities of protestors from authorities. When British authorities attempted to ban the keffiyeh, Palestinians wore the garment en masse as a show of unity, even in urban areas, where the keffiyeh gradually…

Egypt, country located in the northeastern corner of Africa. Egypt’s heartland, the Nile River valley and delta, was the home of one of the principal civilizations of the ancient Middle East and, like Mesopotamia farther east, was the site of one of the world’s earliest urban and literate

T.E. Lawrence on guerrilla warfare: GUERRILLA WARFARE: …the concrete experience of the Arab Revolt against the Turks 1916–1918. But the historical example in turn gains value from the fact that its course was guided by the practical application of the theories here set forth.

keffiyeh: Political symbol: During the 1936–39 Arab Revolt against the British mandate, the keffiyeh was used to conceal the identities of protestors from authorities. When British authorities attempted to ban the keffiyeh, Palestinians wore the garment en masse as a show of unity, even in urban areas, where the keffiyeh gradually…

flag of Jordan: …and July 1958—was the original Arab Revolt Flag without the star. Different interpretations have been given to the seven points of the star, but originally they were associated with the former districts of Syria (Aleppo, Damascus, Beirut, Lebanon, Palestine, Transjordan, and Deir ez-Zor).

Akbar period architecture: …in the gateway to the ʿArab Sarāʾī (guesthouse at Humāyūn’s tomb), Delhi (1560–61), the Ajmer fort (1564–73), the Lahore Fort with its outstanding decoration (1586–1618), and the Allahabad fort (1583–84), now largely dismantled.

Baʿath Party, Pan-Arabist political party advocating the formation of a single Arab socialist nation. It has branches in many Middle Eastern countries and was the ruling party in Syria from 1963 and in Iraq from 1968 to 2003. The Baʿath Party was founded in 1943 in Damascus, Syria, by Michel Aflaq

Baʿath Party, Pan-Arabist political party advocating the formation of a single Arab socialist nation. It has branches in many Middle Eastern countries and was the ruling party in Syria from 1963 and in Iraq from 1968 to 2003. The Baʿath Party was founded in 1943 in Damascus, Syria, by Michel Aflaq

Baʿath Party, Pan-Arabist political party advocating the formation of a single Arab socialist nation. It has branches in many Middle Eastern countries and was the ruling party in Syria from 1963 and in Iraq from 1968 to 2003. The Baʿath Party was founded in 1943 in Damascus, Syria, by Michel Aflaq

Egypt, country located in the northeastern corner of Africa. Egypt’s heartland, the Nile River valley and delta, was the home of one of the principal civilizations of the ancient Middle East and, like Mesopotamia farther east, was the site of one of the world’s earliest urban and literate

Egypt: Government and society: …Union in 1957—from 1962 the Arab Socialist Union (ASU)—which dominated political life in Egypt for the next 15 years. An interim constitution was promulgated in 1964.

Arab Spring, wave of pro-democracy protests and uprisings that took place in the Middle East and North Africa beginning in 2010 and 2011, challenging some of the region’s entrenched authoritarian regimes. The wave began when protests in Tunisia and Egypt toppled their regimes in quick succession,

broadcasting: International organizations: The Arab States Broadcasting Union was formed in 1969 as an intergovernmental organization within the framework of the Arab League; the secretariat is in Cairo, and the technical centre is located in Khartoum, Sudan. The Asociación Internacional de Radiodifusión primarily covers North, Central, and South America…

Arab League, regional organization of Arab states in the Middle East and parts of Africa, formed in Cairo on March 22, 1945, as an outgrowth of Pan-Arabism. The founding member states were Egypt, Syria, Lebanon, Iraq, Transjordan (now Jordan), Saudi Arabia, and Yemen. Other members are Libya

Nawal El Saadawi: …1982 El Saadawi founded the Arab Women’s Solidarity Association (AWSA) and later served as editor of the organization’s publication, Al-Nūn. In 1991 the government closed down Al-Nūn and then, several months later, AWSA itself. Due to her outspoken views, El Saadawi continued to face frequent legal challenges from political and…

Jean Nouvel: …audience in 1987 when the Institute of the Arab World (Institut du Monde Arabe [IMA]) was completed. The main, south facade of that building, with its high-tech aperture-like panels, manages to be at once cutting-edge in its creative response to changing levels of light and evocative of traditional Arab moucharaby…

Baḥr al-ʿArab, intermittent river of southwestern Sudan, rising northeast of the Tondou (Bongo) Massif, near the border with the Central African Republic. The river flows 500 miles (800 km) east-southeast to join the Baḥr al-Ghazāl, a tributary of the Nile River, at Ghābat al-ʿArab in South Sudan.

Arabia, peninsular region, together with offshore islands, located in the extreme southwestern corner of Asia. The Arabian Peninsula is bounded by the Red Sea on the west and southwest, the Gulf of Aden on the south, the Arabian Sea on the south and southeast, and the Gulf of Oman and the Persian

Shaṭṭ Al-ʿArab, river in southeastern Iraq, formed by the confluence of the Tigris and Euphrates rivers at the town of Al-Qurnah. It flows southeastward for 120 miles (193 km) and passes the Iraqi port of Basra and the Iranian port of Ābādān before emptying into the Persian Gulf. For about the last

After decades of confrontations between Arabs and Jews under the British mandate of Palestine, where both communities sought self-determination after the fall of the Ottoman Empire in 1922, the United Kingdom announced its intention in 1947 to withdraw its forces from Palestine and endorsed United

Hatra: …prominence as the capital of Araba, a small semiautonomous state under Parthian influence. Because of its strategic position along caravan trade routes, the town prospered and became an important religious centre. In the 1st and 2nd centuries ce Hatra was ruled by a dynasty of Arabian princes whose written language…

Abydos, prominent sacred city and one of the most important archaeological sites of ancient Egypt. The site, located in the low desert west of the Nile River near Al-Balyanā, was a necropolis for the earliest Egyptian royalty and later a pilgrimage centre for the worship of Osiris. The western

Palestine: The rise of Islam: …first battle took place at Wadi Al-Arabah, south of the Dead Sea. The Byzantine defenders were defeated and retreated toward Gaza but were overtaken and almost annihilated. In other places, however, the natural advantages of the defenders were more effective, and the invaders were hard-pressed. Khālid ibn al-Walīd, then operating…

Wadi Al-ʿArabah, topographic depression in southern Palestine extending about 100 miles (160 km) south from the Dead Sea to the Gulf of Aqaba; it is part of the East African Rift System. Largely sandy desert, it is divided between Israel and Jordan. In the Old Testament, except in Deuteronomy 2:8,

Syvash: …Sea of Azov by the Arabat Spit, a sandbar measuring from 900 feet to 5 miles (270 m to 8 km) in width. Syvash covers an area of approximately 990 square miles (2,560 square km) and is covered with mineral salts during the summer months. The salts are used in…

Joan Aiken: In 1974 Arabel’s Raven was published and launched a popular series that followed the adventures of Arabel and Mortimer, her pet raven. A prolific writer, Aiken penned more than 60 short-story collections and novels for children. Her many books of adult fiction, beginning with The Silence of…

Lotte Lehmann: …her the title role in Arabella (1933), chose her for roles in several of his operas. Lehmann also appeared successfully on English stages from 1913 and in the United States from 1930. At the Metropolitan Opera in New York City she sang chiefly Wagnerian roles. From 1938 she lived in…

short story: Russian writers: Gogol published his Arabesques (1835) five years before Poe collected some of his tales under a similar title. Like those of Poe, Gogol’s tales of hallucination, confusing reality and dream, are among his best stories (“Nevsky Prospect” and “Diary of a Madman,” both 1835). The single most influential…

ballet position: The arabesque is a body position in which the weight of the body is supported on one leg, while the other leg is extended in back with the knee straight. One of the most graceful of ballet positions, the arabesque can be varied in many ways…

arabesque, style of decoration characterized by intertwining plants and abstract curvilinear motifs. Derived from the work of Hellenistic craftsmen working in Asia Minor, the arabesque originally included birds in a highly naturalistic setting. As adapted by Muslim artisans about ad 1000, it became

Stanley Donen: Films of the 1960s and ’70s: Donen’s next significant effort was Arabesque (1966). A somewhat confusing espionage yarn set in London, it starred Gregory Peck as a bewildered American professor opposite Sophia Loren.

arabesque, in literature, a contrived intricate pattern of verbal expression, so called by analogy with a decorative style in which flower, fruit, and sometimes animal outlines appear in elaborate patterns of interlaced lines. That these designs can sometimes suggest fantastic creatures may have

short story: Russian writers: Gogol published his Arabesques (1835) five years before Poe collected some of his tales under a similar title. Like those of Poe, Gogol’s tales of hallucination, confusing reality and dream, are among his best stories (“Nevsky Prospect” and “Diary of a Madman,” both 1835). The single most influential…

Khūzestān, geographic region in southwestern Iran, lying at the head of the Persian Gulf and bordering Iraq on the west. It is notable for its oil resources. Khūzestān comprises a southeastern extension of the Mesopotamian plain and includes part of the forested Zagros Mountains to the northeast.

Arab, one whose native language is Arabic. (See also Arabic language.) Before the spread of Islam and, with it, the Arabic language, Arab referred to any of the largely nomadic Semitic inhabitants of the Arabian Peninsula. In modern usage, it embraces any of the Arabic-speaking peoples living in

Arab, one whose native language is Arabic. (See also Arabic language.) Before the spread of Islam and, with it, the Arabic language, Arab referred to any of the largely nomadic Semitic inhabitants of the Arabian Peninsula. In modern usage, it embraces any of the Arabic-speaking peoples living in

ʿUrābī Pasha was an Egyptian nationalist who led a social-political movement that expressed the discontent of the Egyptian educated classes, army officials, and peasantry with foreign control. ʿUrābī, the son of a village sheikh, studied in Cairo at al-Azhar, the preeminent institution of Arabic

Arabia, peninsular region, together with offshore islands, located in the extreme southwestern corner of Asia. The Arabian Peninsula is bounded by the Red Sea on the west and southwest, the Gulf of Aden on the south, the Arabian Sea on the south and southeast, and the Gulf of Oman and the Persian

Arabia, Roman province created out of the former kingdom of the Nabataeans and the adjacent Syrian cities of Gerasa and Philadelphia (modern Jarash and ʿAmmān, Jordan, respectively), after the formal annexation of the Nabataean kingdom by the Roman emperor Trajan in 105 ce. The province was bounded

Arabia Felix: …a region that contrasted with Arabia Deserta in barren central and northern Arabia and with Arabia Petraea (“Stony Arabia”) in northwestern Arabia, which came under the suzerainty of imperial Rome. The Greeks and Romans chose the name because of the area’s pleasant climate and reputed riches in agricultural products and…

Arabia Felix, in ancient geography, the comparatively fertile region in southwestern and southern Arabia (in present-day Asir and Yemen), a region that contrasted with Arabia Deserta in barren central and northern Arabia and with Arabia Petraea (“Stony Arabia”) in northwestern Arabia, which came

pottery: Pottery factories: and Gustavsberg in Sweden and Arabia Oy in Finland achieved a growing reputation for excellent design in the modern idiom. The emphasis on form in present-day pottery is to a great extent due to the import of Chinese wares of the Song dynasty (see below China: Song dynasty) during the…

Jordan: Biblical associations: …of the new province called Arabia Petraea, with its capital first at Petra and later at Buṣrā al-Shām in Syria. After 313, Christianity became a recognized religion, and a large number of churches were built.

history of Arabia, history of the region from prehistoric times to the present. Sometime after the rise of Islam in the first quarter of the 7th century ce and the emergence of the Arabian Muslims as the founders of one of the great empires of history, the name ʿArab came to be used by these

aloe: Major species and uses: Arabian aloe (A. rubroviolacea) has long blue-green leaves with red teeth and is planted outdoors in warm climates; the leaves turn red if exposed to full sun. Snake, or mountain, aloe (A. broomii) is a common potted plant grown for its dense rosette of triangular…

Saudi Aramco, Oil company founded by the Standard Oil Co. of California (Chevron) in 1933, when the government of Saudi Arabia granted it a concession. Other U.S. companies joined after oil was found near Dhahran in 1938. In 1950 Aramco opened a pipeline from Saudi Arabia to the Mediterranean Sea

hamadryas, (Papio hamadryas), large, powerful monkey of the plains and open-rock areas of the Red Sea coast, both in Africa (Eritrea, The Sudan) and on the opposite coast in Yemen and Saudi Arabia. The hamadryas is the smallest baboon species, with a body length of about 60–70 cm (24–28 inches) and

Arabian Basin, submarine basin of the southern Arabian Sea, rising to meet the submerged Carlsberg Ridge to the south, the Maldive Islands to the southeast, India and Pakistan to the northeast, Iran to the north, and the Arabian Peninsula to the west. It has a maximum depth of 19,275 feet (5,875

bustard: The Arabian bustard (A. arabs) is found in Morocco and in northern tropical Africa south of the Sahara, as are a number of species belonging to several other genera. In Australia the bustard Choriotis australis is called turkey.

dromedary, Arabian (one-humped) riding camel (Camelus dromedarius), a swift domestic species not found in the wild. Although wild dromedaries are extinct, the importation of dromedaries to Australia in the 19th century resulted in the establishment of a feral population that continues to live in

Eastern Desert, large desert in eastern Egypt. Originating just southeast of the Nile River delta, it extends southeastward into northeastern Sudan as well as Eritrea and northern Ethiopia and from the Nile River valley eastward to the Gulf of Suez and the Red Sea. It covers an area of about 85,690

Arabian Desert, great desert region of extreme southwestern Asia that occupies almost the entire Arabian Peninsula. It is the largest desert area on the continent—covering an area of about 900,000 square miles (2,300,000 square km)—and the second largest on Earth, surpassed in size only by the

gazelle: Asian gazelles: subgutturosa), the Arabian gazelle (G. arabica; now extinct), the Saudi gazelle (G. saudiya; now extinct in the wild), the Queen of Sheba’s gazelle (G. bilkis; now extinct), and the dorcas gazelle (G. dorcas). The dorcas gazelle also ranges into North Africa. The range of the goitred gazelle…

Persian Gulf, shallow marginal sea of the Indian Ocean that lies between the Arabian Peninsula and southwestern Iran. The sea has an area of about 93,000 square miles (241,000 square km). Its length is some 615 miles (990 km), and its width varies from a maximum of about 210 miles (340 km) to a

Arabian horse, earliest improved breed of horse, valued for its speed, stamina, beauty, intelligence, and gentleness. The breed’s long history has been obscured by legend, but it had been developed in Arabia by the 7th century ce. The Arabian horse has contributed its qualities to most of the

Iraq: Iraq from 1055 to 1534: The first, qualified as Arabian Iraq (ʿIrāq ʿArabī), denoted the area roughly corresponding to ancient Mesopotamia or the modern nation of Iraq and consisted of Upper Iraq or Al-Jazīrah and Lower Iraq or Al-Sawād (“The Black [Lands]”). The town of Tikrīt was traditionally considered to mark the border between…

Oleaceae: The flowers of Jasminum sambac are used for making necklaces, or leis, in Hawaii. Lilacs, jasmines, and Osmanthus are especially noted for their sweetly fragrant flowers. Osmanthus and a few species of jasmines are prized in China and Japan, where their dried flowers are used to scent certain…

leopard: Conservation status: pardus orientalis), Arabian leopard (P. pardus nimr), and Javan leopard (P. pardus melas) continued to decrease, with several of these subspecies declining to critical levels.

Unani medicine, a traditional system of healing and health maintenance observed in South Asia. The origins of Unani medicine are found in the doctrines of the ancient Greek physicians Hippocrates and Galen. As a field, it was later developed and refined through systematic experiment by the Arabs,

The Thousand and One Nights, collection of largely Middle Eastern and Indian stories of uncertain date and authorship. Its tales of Aladdin, Ali Baba, and Sindbad the Sailor have almost become part of Western folklore, though these were added to the collection only in the 18th century in European

oryx: The Arabian, or white, oryx (O. leucoryx) is the smallest, 102 cm (40 inches) tall and weighing 75 kg (165 pounds), with only faint dark markings to offset its whitish coat. The scimitar-horned oryx (O. dammah), 120 cm (47 inches) tall and weighing 200 kg (440…

Arabia, peninsular region, together with offshore islands, located in the extreme southwestern corner of Asia. The Arabian Peninsula is bounded by the Red Sea on the west and southwest, the Gulf of Aden on the south, the Arabian Sea on the south and southeast, and the Gulf of Oman and the Persian

Turkey: The Arabian platform: Southeastern Turkey between Gaziantep and the Tigris (Dicle) River rests on a stable massif called the Arabian platform. It is characterized by relatively gentle relief, with broad plateau surfaces descending to the south from about 2,500 feet (760 meters) at the mountain foot…

Arabian religion, polytheistic beliefs and practices that existed in Arabia before the rise of Islam in the 7th century ce. Arabia is here understood in the broad sense of the term to include the confines of the Syrian Desert. The religion of Palmyra, which belongs to the Aramaic sphere, is

Arabian Sea, northwestern part of the Indian Ocean, covering a total area of about 1,491,000 square miles (3,862,000 square km) and forming part of the principal sea route between Europe and India. It is bounded to the west by the Horn of Africa and the Arabian Peninsula, to the north by Iran and

continental shield: The African Shield, sometimes called the Ethiopian Shield, extends eastward to include western Saudi Arabia and the eastern half of Madagascar.

Ornithogalum: Star-of-Bethlehem (Ornithogalum umbellatum) and Arabian starflower (O. arabicum) are common garden ornamentals grown for their attractive star-shaped flowers.

tahr: The Arabian tahr (H. jayakari) is the smallest of the three species; an adult male weighs about 40 kg (90 pounds), while females are 17–20 kg (37–44 pounds). It is gray brown (females and subadult males) or blonde (fully adult males), with a brittle, relatively short…

Carlsberg Ridge, submarine ridge of the Arabian Sea and the Indian Ocean. The ridge extends from the triple junction of the African, Indian, and Australian tectonic plates at 2°07′ N 66°30′ E (where it connects to the Mid-Indian Ridge) northwest to the Gulf of Aden. The ridge separates the Arabian

petroleum: Oil fields: The Arabian-Iranian sedimentary basin in the Persian Gulf region contains two-thirds of these supergiant fields. The remaining supergiants are distributed among the United States, Russia, Mexico, Libya, Algeria, Venezuela, China, and Brazil.

continental shield: The African Shield, sometimes called the Ethiopian Shield, extends eastward to include western Saudi Arabia and the eastern half of Madagascar.

continental shield: The African Shield, sometimes called the Ethiopian Shield, extends eastward to include western Saudi Arabia and the eastern half of Madagascar.

World War I: The war at sea, 1914–15: …on August 17, sank the Arabic, which also had U.S. and other neutral passengers. Following a new U.S. protest, the Germans undertook to ensure the safety of passengers before sinking liners henceforth; but only after the torpedoing of yet another liner, the Hesperia, did Germany, on September 18, decide to…

Arabic alphabet, second most widely used alphabetic writing system in the world (the Latin alphabet is the most widespread). Originally developed for writing the Arabic language and carried across much of the Eastern Hemisphere by the spread of Islam, the Arabic script has been adapted to such

Christianity: Messianic secrets and the mysteries of salvation: The First Gospel of the Infancy of Jesus (known also as the Arabic Infancy Gospel), for example, recounts that, one day, Jesus and his playmates were playing on a rooftop and one fell down and died. The other playmates ran away, leaving Jesus accused of pushing…

Arabic language, Semitic language spoken in a large area including North Africa, most of the Arabian Peninsula, and other parts of the Middle East. (See also Afro-Asiatic languages.) Scholars have struggled to define Arabic as a language. On the one hand, one can point to the language of the Qurʾān

Damascus: Cultural life: The prestigious Arabic Language Academy of Damascus (1919) is a bastion of Arabic language, working both to preserve and modernize the language. The National Museum, established in 1936, boasts an extraordinary collection of artifacts from across the country, representing six millennia of civilization. A military museum occupies…

Arabic literary renaissance, 19th-century movement to a modern Arabic literature, inspired by contacts with the West and a renewed interest in the great classical literature. After the Napoleonic invasion of Egypt (1798) and the subsequent establishment of an autonomous and Western-minded ruling

Arabic literature, the body of written works produced in the Arabic language. The tradition of Arabic literature stretches back some 16 centuries to unrecorded beginnings in the Arabian Peninsula. At certain points in the development of European civilization, the literary culture of Islam and its

decimal system, in mathematics, positional numeral system employing 10 as the base and requiring 10 different numerals, the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. It also requires a dot (decimal point) to represent decimal fractions. In this scheme, the numerals used in denoting a number take

Hindu-Arabic numerals, set of 10 symbols—1, 2, 3, 4, 5, 6, 7, 8, 9, 0—that represent numbers in the decimal number system. They originated in India in the 6th or 7th century and were introduced to Europe through the writings of Middle Eastern mathematicians, especially al-Khwarizmi and al-Kindi,

Islamic philosophy, doctrines of the philosophers of the 9th–12th century Islamic world who wrote primarily in Arabic. These doctrines combine Aristotelianism and Neoplatonism with other ideas introduced through Islam. Islamic philosophy is related to but distinct from the theological doctrines and

rock cress, (genus Arabis), genus of some 120 species of herbs belonging to the mustard family (Brassicaceae), found throughout the Northern Hemisphere and in mountainous areas of Africa. Rock cresses are often erect or mound-forming and bear characteristic long, narrow seedpods, called siliques.

rock cress: Alpine rock cress (A. alpina) also produces white flowers and is common in rock gardens. The bluish rock cress (A. caerulea) is an alpine perennial only 10 cm (4 inches) tall, with pale purple flowers. Many North American rock cress species have been reassigned to…

rock cress: Wall rock cress, or garden arabis (Arabis caucasica), is a perennial from southeastern Europe. It reaches 30 cm (1 foot) in height and bears fragrant white flowers in early spring; it has double, pink, dwarf, and variegated varieties. Alpine rock cress (A. alpina) also produces…