Unani medicine, also known as yunani tibb or Greco-Islamic medicine, is a therapeutic system used in South and Southwest Asia that developed through the interaction of ancient Greek with some Arab and, perhaps, Ayurvedic medical and pharma...

Uncertainty in statistics is measured by the amount of error in an estimate of the mean or average value of a population. The sample mean is the average of a group of measurements or parameters taken from the population, and the standard...

Uncle Dave Macon, singer, songwriter, and banjo player, was one of the earliest pioneers of country music. Born in 1870 in Smart Station, Tennessee, David Harrison Macon grew up in Nashville in the boarding house run by his parents that wa...

Harriet Beecher Stowe's melodramatic novel, Uncle Tom's Cabin, which she called in the preface a "series of sketches", was written "to awaken sympathy and feeling for the African race" (Stowe "Preface"). It was so successful as a polemic a...

An unconformity is a stratigraphic feature that is formed by broad erosion of an area causing a significant gap to occur in the stratigraphic record. Generally, development of an unconformity is accompanied by or preceded by uplift of the ...

Under Milk Wood by Dylan Thomas Dylan Thomas (1914-53), Wales’s most renowned modern poet, was born in the seaport town of Swansea on the southern Welsh coast. From his father, a school teacher with literary interests and atheistic b...

Underground Comics (or "Comix," with the X understood to signify X-rated material) include strips and books heavily dosed with obscenity, graphic sex, gory violence, glorification of drug use, and general defiance of conventi...

Understand This by Jervey Tervalon Jervey Tervalon's family moved from New Orleans, Louisiana, to Los Angeles, California, when he was four years old. They settled among other working and middle-class black families in a community-oriented,...

English engineer and amateur photographer William Thompson devised the first method of taking underwater photographs in 1856. As he watched a swollen river sweep beneath a bridge during a rainstorm, he wondered how photography might be use...

Unemployment is when somebody is not employed. In the UK, many people are not working but also are not ¡§officially unemployed.¡¨ These people are inactive members of the working age. To be an active member, you have to ...

Located on the Malay Peninsula in Southeast Asia, the Unfederated Malay States (UMS), were Johor, Kedah, Perlis, Kelantan, and Terengganu. The main difference between the five UMS and the four Federated Malay States (FMS) was that British ...

Unicode is a standard for the representation of characters as integers. Another means of character representation, the American Standard Code for Information Interchange (ASCII), is a more commonly used form of character representation. Al...

UNIFICATION CHURCH. The Unification Church is a messianic, millenarian religion, dedicated to the goal of restoring the kingdom of heaven on earth. It was founded in Korea in 1954 by the Reverend Sun Myung Moon (b. 1920) as the Holy Spirit...

A state transition diagram is a graphical representation of the states of an object as well as the transitions the object may pass through during its lifetime. State transition diagrams are used in object-oriented modeling and design to re...

Uniform Commercial Code The Uniform Commercial Code (UCC) is a collection of recommended laws covering many different issues that arise during commercial transactions, such as sales contracts, leases, negotiable instruments, letters of cre...

The concept of uniformitarianism is commonly oversimplified in geological textbooks as "the present is a guide to interpreting the past" (or words to that effect). This explanation, however, is not correct about the true mean...

The first action of naval warfare in the American Civil War was the blockade of Southern ports by the Union Navy. Starting on April 19, 1861, the blockade was part of General Winfield Scott's strategy called the Anaconda Plan, which...

(2002 est. pop. 14 million). India's third-largest city (after Calcutta and Mumbai) and a union territory, Delhi has served as the capital of various regimes for over ten centuries. Jawaharlal Nehru (1889–1964), India'...

Unita Blackwell Born March 18, 1933 Lula, Mississippi Mayor and civil rights activist Unita Blackwell was inspired to join the civil rights movement in the early 1960s by student activists. She registered voters, helped found the Mississipp...

United Arab Emirates Al-Imarat al-'Arabiyah al-Muttahidah CAPITAL: Abu Dhabi (Abu Zaby) FLAG: The flag consists of a red vertical stripe at the hoist and three equal horizontal stripes of green, white, and black. ANTHEM: The Nationa...

United States 1941 By 1941 the United Automobile Workers (UAW) had been successful in establishing union representation at all automotive plants in the United States except for the Ford Motor Company. Henry Ford, the company's foun...

In 1973, the Indonesian New Order government of Suharto merged all existing political parties into two parties—the Partai Demokrasi Indonesia (PDI; Indonesian Democratic Party) and the Partai Persatuan Pembangunan (PPP; United Devel...

The United Front strategy grew from the belief of the Soviet Comintern, or international organization of Communist parties, that Communist groups in nations subject to foreign subjugation should form a united front with nationalists to ga...

United Kingdom of Great Britain and Northern Ireland CAPITAL: London FLAG: The Union Jack, adopted in 1800, is a combination of the banners of England (St. George's flag: a red cross with extended horizontals on a white field), Scot...

United States 1890 The United Mine Workers of America (UMWA) is an industrial labor union that was formed in 1890 by the joining of the National Progressive Union of Miners and Mine Laborers and the Knights of Labor Trade Assembly No. 135...