B or b (pronounced /biː/ BEE) is the second letter of the ISO basic Latin alphabet. It represents the voiced bilabial stop in many languages, including English. In some other languages, it is used to represent other bilabial consonants.
|Writing system||Latin script|
ISO basic Latin alphabet
|Language of origin||Latin language|
Numerical value: 2
|Time period||unknown to present|
|Descendants|| • ♭|
|Other letters commonly used with||bv|
|Modern Roman |
Old English was originally written in runes, whose equivalent letter was beorc ⟨ᛒ⟩, meaning "birch". Beorc dates to at least the 2nd-century Elder Futhark, which is now thought to have derived from the Old Italic alphabets' ⟨ 𐌁 ⟩ either directly or via Latin ⟨⟩.
The uncial ⟨⟩ and half-uncial ⟨⟩ introduced by the Gregorian and Irish missions gradually developed into the Insular scripts' ⟨⟩. These Old English Latin alphabets supplanted the earlier runes, whose use was fully banned under King Canute in the early 11th century. The Norman Conquest popularized the Carolingian half-uncial forms which latter developed into blackletter ⟨ ⟩. Around 1300, letter case was increasingly distinguished, with upper- and lower-case B taking separate meanings. Following the advent of printing in the 15th century, Germany and Scandinavia continued to use forms of blackletter (particularly Fraktur), while England eventually adopted the humanist and antiqua scripts developed in Renaissance Italy from a combination of Roman inscriptions and Carolingian texts. The present forms of the English cursive B were developed by the 17th century.
The Roman ⟨B⟩ derived from the Greek capital beta ⟨Β⟩ via its Etruscan and Cumaean variants. The Greek letter was an adaptation of the Phoenician letter bēt ⟨𐤁⟩. The Egyptian hieroglyph for the consonant /b/ had been an image of a foot and calf ⟨ ⟩, but bēt (Phoenician for "house") was a modified form of a Proto-Sinaitic glyph ⟨ ⟩ probably adapted from the separate hieroglyph Pr ⟨ ⟩ meaning "house". The Hebrew letter beth ⟨ב⟩ is a separate development of the Phoenician letter.
By Byzantine times, the Greek letter ⟨Β⟩ came to be pronounced /v/, so that it is known in modern Greek as víta (still written βήτα). The Cyrillic letter ve ⟨В⟩ represents the same sound, so a modified form known as be ⟨Б⟩ was developed to represent the Slavic languages' /b/. (Modern Greek continues to lack a letter for the voiced bilabial plosive and transliterates such sounds from other languages using the digraph/consonant cluster ⟨μπ⟩, mp.)
In English, ⟨b⟩ denotes the voiced bilabial stop /b/, as in bib. In English, it is sometimes silent. This occurs particularly in words ending in ⟨mb⟩, such as lamb and bomb, some of which originally had a /b/ sound, while some had the letter ⟨b⟩ added by analogy (see Phonological history of English consonant clusters). The ⟨b⟩ in debt, doubt, subtle, and related words was added in the 16th century as an etymological spelling, intended to make the words more like their Latin originals (debitum, dubito, subtilis).
As /b/ is one of the sounds subject to Grimm's Law, words which have ⟨b⟩ in English and other Germanic languages may find their cognates in other Indo-European languages appearing with ⟨bh⟩, ⟨p⟩, ⟨f⟩ or ⟨φ⟩ instead. For example, compare the various cognates of the word brother.
Many other languages besides English use ⟨b⟩ to represent a voiced bilabial stop.
In Estonian, Icelandic, and Chinese Pinyin, ⟨b⟩ does not denote a voiced consonant. Instead, it represents a voiceless /p/ that contrasts with either a geminated /p:/ (in Estonian) or an aspirated /pʰ/ (in Pinyin, Danish and Icelandic) represented by ⟨p⟩. In Fijian ⟨b⟩ represents a prenasalized /mb/, whereas in Zulu and Xhosa it represents an implosive /ɓ/, in contrast to the digraph ⟨bh⟩ which represents /b/. Finnish uses ⟨b⟩ only in loanwords.
In the International Phonetic Alphabet, [b] is used to represent the voiced bilabial stop phone. In phonological transcription systems for specific languages, /b/ may be used to represent a lenis phoneme, not necessarily voiced, that contrasts with fortis /p/ (which may have greater aspiration, tenseness or duration).
B is also a musical note. In English-speaking countries, it represents Si, the 12th note of a chromatic scale built on C. In Central Europe and Scandinavia, "B" is used to denote B-flat and the 12th note of the chromatic scale is denoted "H". Archaic forms of 'b', the b quadratum (square b, ♮) and b rotundum (round b, ♭) are used in musical notation as the symbols for natural and flat, respectively.
In Contracted (grade 2) English braille, 'b' stands for "but" when in isolation.
In computer science, B is the symbol for byte, a unit of information storage.
|Unicode name||LATIN CAPITAL LETTER B||LATIN SMALL LETTER B|
|Numeric character reference||B||B||b||b|
|NATO phonetic||Morse code|
|Signal flag||Flag semaphore||American manual alphabet (ASL fingerspelling)||Braille |
is the current year, and is a common year starting on Tuesday of the Gregorian calendar, the 2019th year of the Common Era (CE) and Anno Domini (AD) designations, the 19th year of the 3rd millennium, the 19th year of the 21st century, and the 10th and last year of the 2010s decade.
2019 has been designated as International Year of the Periodic Table of Chemical Elements by the United Nations General Assembly given that it coincides with the 150th anniversary of its creation by Dmitri Mendeleev in 1869.B. R. Ambedkar
Bhimrao Ramji Ambedkar (14 April 1891 – 6 December 1956), popularly known as Babasaheb Ambedkar, was an Indian jurist, economist, politician and social reformer who inspired the Dalit Buddhist movement and campaigned against social discrimination towards the untouchables (Dalits), while also supporting the rights of women and labour. He was independent India's first law and justice minister, the architect of the Constitution of India, and a founding father of the Republic of India.
Ambedkar was a prolific student earning doctorates in economics from both Columbia University and the London School of Economics and gained a reputation as a scholar for his research in law, economics, and political science. In his early career he was an economist, professor, and lawyer. His later life was marked by his political activities; he became involved in campaigning and negotiations for India's independence, publishing journals, advocating political rights and social freedom for Dalits, and contributing significantly to the establishment of the state of India. In 1956, he converted to Buddhism initiating mass conversions of Dalits.
In 1990, the Bharat Ratna, India's highest civilian award, was posthumously conferred upon Ambedkar. Ambedkar's legacy includes numerous memorials and depictions in popular culture.Bachelor's degree
A bachelor's degree (from Middle Latin baccalaureus) or baccalaureate (from Modern Latin baccalaureatus) is an undergraduate academic degree awarded by colleges and universities upon completion of a course of study lasting three to seven years (depending on institution and academic discipline). In some institutions and educational systems, some bachelor's degrees can only be taken as graduate or postgraduate degrees after a first degree has been completed. In countries with qualifications frameworks, bachelor's degrees are normally one of the major levels in the framework (sometimes two levels where non-honours and honours bachelor's degrees are considered separately), although some qualifications titled bachelor's degrees may be at other levels (e.g. MBBS) and some qualifications with non-bachelor's titles may be classified as bachelor's degrees (e.g. the Scottish MA and Canadian MD).
The term bachelor in the 12th century referred to a knight bachelor, who was too young or poor to gather vassals under his own banner. By the end of the 13th century, it was also used by junior members of guilds or universities. By folk etymology or wordplay, the word baccalaureus came to be associated with bacca lauri ("laurel berry") in reference to laurels being awarded for academic success or honours.Under the British system, and those influenced by it, undergraduate academic degrees are differentiated as either non-honours degrees (known variously as pass degrees, ordinary degrees or general degrees) or honours degrees, the latter sometimes denoted by the addition of "(Hons)" after the degree abbreviation.An honours degree generally requires a higher academic standard than a pass degree, and in some systems an additional year of study beyond the non-honours bachelor's. Some countries, such as Australia, New Zealand and Canada, have a postgraduate "bachelor with honours" degree. This may be taken as a consecutive academic degree, continuing on from the completion of a bachelor's degree program in the same field, or as part of an integrated honours program. These programs typically require completion of a full-year long research thesis project.Bachelor of Arts
A Bachelor of Arts (BA or AB—often styled B.A.; from the Latin baccalaureus artium or artium baccalaureus) is a bachelor's degree awarded for an undergraduate course or program in either the liberal arts, sciences, or both. Bachelor of Arts programs generally take three to four years depending on the country, institution, and specific specializations, majors, or minors. The word baccalaureus (from the Latin bacca, a berry, and laureus, "of the bay laurel") should not be confused with baccalaureatus (translatable as "gold-plated scepter" by using the Latina bacum and aureatus), which refers to the one- to two-year postgraduate Bachelor of Arts with Honors degree (Baccalaureatus in Artibus Cum Honore) in some countries.
Diplomas generally give the name of the institution, signatures of officials of the institution (generally the president or rector of the university as well as the secretary or dean of the component college), type of degree conferred, conferring authority, and location at which the degree is conferred. Diplomas generally are printed on high-quality paper or parchment; individual institutions set the preferred abbreviation for their degrees.
The Bachelor of Arts is usually attained in four years in Afghanistan, Lebanon, Armenia, Kenya, Canada, Greece, Bangladesh, Azerbaijan, Egypt, Iran, Japan, Kazakhstan, Lithuania, Nigeria, Serbia, Spain, Pakistan, the Philippines, Thailand, Russia, Ireland, South Korea, Iraq, Kuwait, Turkey, Hong Kong, the United States, and most of the Americas.
Degree attainment generally takes three years in nearly all of the European Union and Albania, Australia, Bosnia and Herzegovina, India, Israel, New Zealand, Iceland, Norway, Singapore, the Caribbean, South Africa, Switzerland, and the Canadian province of Quebec. In Pakistan, the Bachelor of Arts can also be attained within two years as an external degree.Bachelor of Science
A Bachelor of Science (Latin Baccalaureus Scientiae, B.S., BS, B.Sc., BSc, or B.Sc; or, less commonly, S.B., SB, or Sc.B., from the equivalent Latin Scientiae Baccalaureus) is an undergraduate academic degree awarded for completed courses that generally last three to five years, or a person holding such a degree.Whether a student of a particular subject is awarded a Bachelor of Science degree or a Bachelor of Arts degree can vary between universities. For example, an economics degree may be given as a Bachelor of Arts (BA) by one university but as a BS by another, and some universities offer the choice of either. Some liberal arts colleges in the United States offer only the BA, even in the natural sciences, while some universities offer only the BS even in non-science fields. At universities that offer both BA and BS degrees in the same discipline, the BS degree is usually more extensive in that particular discipline and is targeted towards students who are pursuing graduate school or a profession in that field.Georgetown University's School of Foreign Service awards Bachelor of Science in Foreign Service degrees to all of its undergraduates, although many students major in humanities-oriented fields such as international history or culture and politics. The London School of Economics offers BSc degrees in practically all subject areas, even those normally associated with arts degrees, while the Oxbridge universities almost exclusively award arts qualifications. In both instances, there are historical and traditional reasons. Northwestern University's School of Communication grants BSc degrees in all of its programs of study, including theater, dance, and radio/television/film. University of California, Berkeley grants BS degree in Environmental Economics and Policy in College of Natural Resources (CNR), BS degree in Business Administration in Haas School of Business and BA degree in Environmental Economics and Policy in College of Letters and Science (L&S). Cornell University offers a BS degree in Computer Science from its College of Engineering and a BA degree in Computer Science from its College of Arts and Sciences.
The first university to admit a student to the degree of Bachelor of Science was the University of London in 1860. Prior to this, science subjects were included in the BA bracket, notably in the cases of mathematics, physics, physiology and botany.Cardi B
Belcalis Marlenis Almánzar (born October 11, 1992), known professionally as Cardi B, is an American rapper, singer, and songwriter. Born and raised in The Bronx, New York City, she became an Internet celebrity after several of her posts and videos went viral on Vine and Instagram. From 2015 to 2017, she appeared as a regular cast member on the VH1 reality television series Love & Hip Hop: New York to follow her music aspirations, and released two mixtapes—Gangsta Bitch Music, Vol. 1 and Vol. 2.Cardi B has earned three number-one singles on the US Billboard Hot 100; "Bodak Yellow" made her the second female rapper to top the chart with a solo output—following Lauryn Hill in 1998, "I Like It" made her the first female rapper to attain multiple number-one songs on the chart, and her Maroon 5 collaboration "Girls Like You" extended that record. Her debut studio album, Invasion of Privacy (2018), on which the first two songs were included, debuted at number one on the Billboard 200, broke several streaming records and earned her a Grammy Award for Best Rap Album, making her the only woman to win the award as a solo artist. Also in 2018, Time included her on their annual list of the 100 most influential people in the world.
Among her numerous accolades, she has won a Grammy Award, three American Music Awards, three MTV Video Music Awards, nine BET Hip Hop Awards, a Billboard Music Award and received two Guinness World Records.February 10
February 10 is the 41st day of the year in the Gregorian calendar. There are 324 days remaining until the end of the year (325 in leap years).February 11
February 11 is the 42nd day of the year in the Gregorian calendar. There are 323 days remaining until the end of the year (324 in leap years).February 4
February 4 is the 35th day of the year in the Gregorian calendar. There are 330 days remaining until the end of the year (331 in leap years).
This day marks the approximate midpoint of winter in the Northern Hemisphere and of summer in the Southern Hemisphere (starting the season at the December solstice).February 5
February 5 is the 36th day of the year in the Gregorian calendar. There are 329 days remaining until the end of the year (330 in leap years).February 6
February 6 is the 37th day of the year in the Gregorian calendar. There are 328 days remaining until the end of the year (329 in leap years).February 7
February 7 is the 38th day of the year in the Gregorian calendar. There are 327 days remaining until the end of the year (328 in leap years).February 8
February 8 is the 39th day of the year in the Gregorian calendar. There are 326 days remaining until the end of the year (327 in leap years).February 9
February 9 is the 40th day of the year in the Gregorian calendar. There are 325 days remaining until the end of the year (326 in leap years).Lyndon B. Johnson
Lyndon Baines Johnson (; August 27, 1908 – January 22, 1973), often referred to by his initials LBJ, was an American politician who served as the 36th president of the United States from 1963 to 1969. Formerly the 37th vice president of the United States from 1961 to 1963, he assumed the presidency following the assassination of President John F. Kennedy. A Democrat from Texas, Johnson also served as a United States Representative and as the Majority Leader in the United States Senate. Johnson is one of only four people who have served in all four federal elected positions.Born in a farmhouse in Stonewall, Texas, Johnson was a high school teacher and worked as a congressional aide before winning election to the House of Representatives in 1937. He won election to the Senate in 1948 and was appointed to the position of Senate Majority Whip in 1951. He became the Senate Minority Leader in 1953 and the Senate Majority Leader in 1955. He became known for his domineering personality and the "Johnson treatment", his aggressive coercion of powerful politicians to advance legislation.
Johnson ran for the Democratic nomination in the 1960 presidential election. Although unsuccessful, he accepted the invitation of then-Senator John F. Kennedy of Massachusetts to be his running mate. They went on to win a close election over the Republican ticket of Richard Nixon and Henry Cabot Lodge Jr. On November 22, 1963, Kennedy was assassinated and Johnson succeeded him as president. The following year, Johnson won a landslide in 1964, defeating Senator Barry Goldwater of Arizona. With 61.1 percent of the popular vote, Johnson won the largest share of the popular vote of any candidate since the largely uncontested 1820 election.
In domestic policy, Johnson designed the "Great Society" legislation to expand civil rights, public broadcasting, Medicare, Medicaid, aid to education, the arts, urban and rural development, public services and his "War on Poverty". Assisted in part by a growing economy, the War on Poverty helped millions of Americans rise above the poverty line during his administration. Civil-rights bills that he signed into law banned racial discrimination in public facilities, interstate commerce, the workplace and housing; the Voting Rights Act prohibited certain requirements in southern states used to disenfranchise African Americans. With the passage of the Immigration and Nationality Act of 1965, the country's immigration system was reformed, encouraging greater emigration from regions other than Europe. Johnson's presidency marked the peak of modern liberalism after the New Deal era.
In foreign policy, Johnson escalated American involvement in the Vietnam War. In 1964, Congress passed the Gulf of Tonkin Resolution, which granted Johnson the power to use military force in Southeast Asia without having to ask for an official declaration of war. The number of American military personnel in Vietnam increased dramatically, from 16,000 advisors in non-combat roles in 1963 to 525,000 in 1967, many in combat roles. American casualties soared and the peace process stagnated. Growing unease with the war stimulated a large, angry anti-war movement based chiefly among draft-age students on university campuses.
Johnson faced further troubles when summer riots began in major cities in 1965 and crime rates soared, as his opponents raised demands for "law and order" policies. While Johnson began his presidency with widespread approval, support for him declined as the public became frustrated with both the war and the growing violence at home. In 1968, the Democratic Party factionalized as anti-war elements denounced Johnson; he ended his bid for renomination after a disappointing finish in the New Hampshire primary. Nixon was elected to succeed him, as the New Deal coalition that had dominated presidential politics for 36 years collapsed. After he left office in January 1969, Johnson returned to his Texas ranch, where he died of a heart attack at age 64, on January 22, 1973.
Johnson is ranked favorably by many historians because of his domestic policies and the passage of many major laws that affected civil rights, gun control, wilderness preservation, and Social Security, although he has also drawn substantial criticism for his escalation of the Vietnam War.Order of the British Empire
The Most Excellent Order of the British Empire is a British order of chivalry, rewarding contributions to the arts and sciences, work with charitable and welfare organisations,
and public service outside the civil service. It was established on 4 June 1917 by King George V and comprises five classes across both civil and military divisions, the most senior two of which make the recipient either a knight if male or dame if female. There is also the related British Empire Medal, whose recipients are affiliated with, but not members of, the order.
Recommendations for appointments to the Order of the British Empire were originally made on the nomination of the United Kingdom, the self-governing Dominions of the Empire (later Commonwealth) and the Viceroy of India. Nominations continue today from Commonwealth countries that participate in recommending British (Imperial) honours. Most Commonwealth countries ceased recommendations for appointments to the Order of the British Empire when they created their own honours.R. Kelly
Robert Sylvester Kelly (born January 8, 1967) is an American singer, songwriter, record producer, and former professional basketball player. A native of Chicago, Kelly began performing during the late 1980s and debuted in 1992 with the group Public Announcement. In 1993, Kelly went solo with the album 12 Play. He is known for various songs including "Bump N' Grind", "Your Body's Callin'", "I Believe I Can Fly", "Gotham City", "Ignition (Remix)", "If I Could Turn Back the Hands of Time", "The World's Greatest", "I'm a Flirt (Remix)", and the hip-hopera "Trapped in the Closet". In 1998, Kelly won three Grammy Awards for "I Believe I Can Fly". His distinctive sound and style has influenced numerous hip hop and contemporary R&B artists.
Although Kelly is primarily a singer-songwriter, he has written, produced, and remixed songs and albums for many artists. In 1996, he was nominated for a Grammy for writing Michael Jackson's song "You Are Not Alone". In 2002 and 2004, Kelly released collaboration albums with rapper Jay-Z and has been a featured vocalist for other hip hop artists like Nas, Sean Combs, and The Notorious B.I.G.
Kelly is one of the best-selling music artists in the United States, with over 30 million albums sold both domestically. He has released 12 solo studio albums, and sold over 75 million albums and singles worldwide, making him the most successful R&B male artist of the 1990s and one of the best-selling music artists of all time. He is credited for helping redefine R&B and hip hop, earning the nicknames "King of R&B" and "King of Pop-Soul". He is listed by Billboard as the most successful R&B/Hip Hop artist of the years 1985-2010 and the most successful R&B artist in history. He has won awards including BET, Soul Train, Billboard, NAACP, and American Music Awards.
Since the 1990s, Kelly has been the subject of numerous allegations of sexual abuse and misconduct, often with underage girls, all charges he "categorically denies". In 2002 he was indicted on 13 counts of child pornography, but was acquitted of all charges in 2008.In January 2019, a widely viewed Lifetime docuseries detailed allegations of sexual abuse by multiple women, allegations Kelly denies. Facing pressure from the public using the #MuteRKelly hashtag, RCA Records dropped Kelly.Rhythm and blues
Rhythm and blues, commonly abbreviated as R&B, is a genre of popular music that originated in African American communities in the 1940s. The term was originally used by record companies to describe recordings marketed predominantly to urban African Americans, at a time when "urbane, rocking, jazz based music with a heavy, insistent beat" was becoming more popular.
In the commercial rhythm and blues music typical of the 1950s through the 1970s, the bands usually consisted of piano, one or two guitars, bass, drums, one or more saxophones, and sometimes background vocalists. R&B lyrical themes often encapsulate the African-American experience of pain and the quest for freedom and joy, as well as triumphs and failures in terms of relationships, economics, and aspirations.
The term "rhythm and blues" has undergone a number of shifts in meaning. In the early 1950s, it was frequently applied to blues records. Starting in the mid-1950s, after this style of music contributed to the development of rock and roll, the term "R&B" became used to refer to music styles that developed from and incorporated electric blues, as well as gospel and soul music. In the 1960s, several British rock bands such as the Rolling Stones, the Who and the Animals were referred to and promoted as being R&B bands; posters for the Who's residency at the Marquee Club in 1964 contained the slogan, "Maximum R&B". Their mix of rock and roll and R&B is now known as "British rhythm and blues". By the 1970s, the term "rhythm and blues" changed again and was used as a blanket term for soul and funk. In the 1980s, a newer style of R&B developed, becoming known as "contemporary R&B". It combines elements of rhythm and blues, pop, soul, funk, hip hop, and electronic music. Popular R&B vocalists at the end of the 20th century included Prince, R. Kelly, Stevie Wonder, Chaka Khan, Whitney Houston, and Mariah Carey.The Notorious B.I.G.
Christopher George Latore Wallace (May 21, 1972 – March 9, 1997), known professionally as the Notorious B.I.G., Biggie Smalls, or Biggie, was an American rapper. He is considered by many to be one of the greatest rappers of all time.Wallace was raised in the Brooklyn borough of New York City. His debut album Ready to Die (1994) made him a central figure in East Coast hip hop, and increased New York City's visibility in the genre at a time when West Coast hip hop dominated the mainstream. The following year, Wallace led Junior M.A.F.I.A. to chart success, a protégé group composed of his childhood friends. In 1996, while recording his second album, Wallace was heavily involved in the growing East Coast–West Coast hip hop feud. Wallace was murdered by an unknown assailant in a drive-by shooting in Los Angeles on March 9, 1997. His second album, Life After Death (1997), released sixteen days later, rose to number one on the U.S. album charts. In 2000, it became one of the few hip-hop albums to be certified Diamond.Wallace was noted for his "loose, easy flow", dark semi-autobiographical lyrics, and storytelling, which focused on crime and hardship. Three more albums have been released since his death, and he has certified sales of over 17 million records in the United States, including 13.4 million albums.W. E. B. Du Bois
William Edward Burghardt Du Bois ( doo-BOYSS; February 23, 1868 – August 27, 1963) was an American sociologist, historian, civil rights activist, Pan-Africanist, author, writer and editor. Born in Great Barrington, Massachusetts, Du Bois grew up in a relatively tolerant and integrated community, and after completing graduate work at the University of Berlin and Harvard, where he was the first African American to earn a doctorate, he became a professor of history, sociology and economics at Atlanta University. Du Bois was one of the founders of the National Association for the Advancement of Colored People (NAACP) in 1909.
Before that, Du Bois had risen to national prominence as the leader of the Niagara Movement, a group of African-American activists who wanted equal rights for blacks. Du Bois and his supporters opposed the Atlanta compromise, an agreement crafted by Booker T. Washington which provided that Southern blacks would work and submit to white political rule, while Southern whites guaranteed that blacks would receive basic educational and economic opportunities. Instead, Du Bois insisted on full civil rights and increased political representation, which he believed would be brought about by the African-American intellectual elite. He referred to this group as the Talented Tenth and believed that African Americans needed the chances for advanced education to develop its leadership.
Racism was the main target of Du Bois's polemics, and he strongly protested against lynching, Jim Crow laws, and discrimination in education and employment. His cause included people of color everywhere, particularly Africans and Asians in colonies. He was a proponent of Pan-Africanism and helped organize several Pan-African Congresses to fight for the independence of African colonies from European powers. Du Bois made several trips to Europe, Africa and Asia. After World War I, he surveyed the experiences of American black soldiers in France and documented widespread prejudice in the United States military.
Du Bois was a prolific author. His collection of essays, The Souls of Black Folk, was a seminal work in African-American literature; and his 1935 magnum opus, Black Reconstruction in America, challenged the prevailing orthodoxy that blacks were responsible for the failures of the Reconstruction Era. Borrowing a phrase from Frederick Douglass, he popularized the use of the term color line to represent the injustice of the separate but equal doctrine prevalent in American social and political life. He opens The Souls of Black Folk with the central thesis of much of his life's work: "The problem of the twentieth century is the problem of the color-line."
He wrote one of the first scientific treatises in the field of American sociology, and he published three autobiographies, each of which contains essays on sociology, politics and history. In his role as editor of the NAACP's journal The Crisis, he published many influential pieces. Du Bois believed that capitalism was a primary cause of racism, and he was generally sympathetic to socialist causes throughout his life. He was an ardent peace activist and advocated nuclear disarmament. The United States' Civil Rights Act, embodying many of the reforms for which Du Bois had campaigned his entire life, was enacted a year after his death.