21 (number)
Encyclopedia
21 is the natural number
following 20
and preceding 22
.
and the second in the (3.q) family. With 22 it forms the second discrete Semiprime
pair. As it is a semiprime with both its prime factors being Gaussian primes, 21 is then a Blum integer
.
Twenty-one is a Fibonacci number
, a Harshad number
, a Motzkin number
, a triangular number
and an octagonal number, as well as a composite number
, its proper divisor
s being 1, 3 and 7.
21 is the sum of the first six natural numbers (1+2+3+4+5+6=21).
21 has an aliquot sum of 11 though it is the second composite number found in the 11-aliquot tree with the abundant square prime 18 being the first such member. Twenty-one is the first number to be the aliquot sum of three numbers 18, 51, 91.
21 appears in the Padovan sequence
, preceded by the terms 9, 12, 16 (it is the sum of the first two of these).
The sum of divisors for the integers 1 through 6 is 21.
21 is a repdigit
in base 4 (111).
21 is the smallest natural number that is not close to a power of 2, 2^n,
where the range of closeness is +- n.
21 is the smallest number of differently sized squares needed to square the square
.
. See also: Coming of age
, Voting age
, Legal drinking age
.
In most USA states 21 is the drinking age.
In some countries it is the voting age.
Natural number
In mathematics, the natural numbers are the ordinary whole numbers used for counting and ordering . These purposes are related to the linguistic notions of cardinal and ordinal numbers, respectively...
following 20
20 (number)
20 is the natural number following 19 and preceding 21. A group of twenty units may also be referred to as a score.-In mathematics:*20 is the basis for vigesimal number systems....
and preceding 22
22 (number)
22 is the natural number following 21 and preceding 23.- In mathematics :Twenty-two is an even composite number, its proper divisors being 1, 2 and 11....
.
In mathematics
Twenty-one is the fifth discrete SemiprimeSemiprime
In mathematics, a semiprime is a natural number that is the product of two prime numbers. The first few semiprimes are 4, 6, 9, 10, 14, 15, 21, 22, 25, 26, ... ....
and the second in the (3.q) family. With 22 it forms the second discrete Semiprime
Semiprime
In mathematics, a semiprime is a natural number that is the product of two prime numbers. The first few semiprimes are 4, 6, 9, 10, 14, 15, 21, 22, 25, 26, ... ....
pair. As it is a semiprime with both its prime factors being Gaussian primes, 21 is then a Blum integer
Blum integer
In mathematics, a natural number n is a Blum integer if n = p×q is a semiprime for which p and q are distinct prime numbers congruent to 3 mod 4. That is, p and q must be of the form 4t+3, for some integer t. Primes of this form are referred to as Blum primes. This means that the factors of a Blum...
.
Twenty-one is a Fibonacci number
Fibonacci number
In mathematics, the Fibonacci numbers are the numbers in the following integer sequence:0,\;1,\;1,\;2,\;3,\;5,\;8,\;13,\;21,\;34,\;55,\;89,\;144,\; \ldots\; ....
, a Harshad number
Harshad number
A Harshad number, or Niven number in a given number base, is an integer that is divisible by the sum of its digits when written in that base. Harshad numbers were defined by D. R. Kaprekar, a mathematician from India. The word "Harshad" comes from the Sanskrit + , meaning joy-giver. The Niven...
, a Motzkin number
Motzkin number
In mathematics, a Motzkin number for a given number n is the number of different ways of drawing non-intersecting chords on a circle between n points. The Motzkin numbers have very diverse applications in geometry, combinatorics and number theory...
, a triangular number
Triangular number
A triangular number or triangle number numbers the objects that can form an equilateral triangle, as in the diagram on the right. The nth triangle number is the number of dots in a triangle with n dots on a side; it is the sum of the n natural numbers from 1 to n...
and an octagonal number, as well as a composite number
Composite number
A composite number is a positive integer which has a positive divisor other than one or itself. In other words a composite number is any positive integer greater than one that is not a prime number....
, its proper divisor
Divisor
In mathematics, a divisor of an integer n, also called a factor of n, is an integer which divides n without leaving a remainder.-Explanation:...
s being 1, 3 and 7.
21 is the sum of the first six natural numbers (1+2+3+4+5+6=21).
21 has an aliquot sum of 11 though it is the second composite number found in the 11-aliquot tree with the abundant square prime 18 being the first such member. Twenty-one is the first number to be the aliquot sum of three numbers 18, 51, 91.
21 appears in the Padovan sequence
Padovan sequence
The Padovan sequence is the sequence of integers P defined by the initial valuesP=P=P=1,and the recurrence relationP=P+P.The first few values of P are...
, preceded by the terms 9, 12, 16 (it is the sum of the first two of these).
The sum of divisors for the integers 1 through 6 is 21.
21 is a repdigit
Repdigit
In recreational mathematics, a repdigit is a natural number composed of repeated instances of the same digit, most often in the decimal numeral system....
in base 4 (111).
21 is the smallest natural number that is not close to a power of 2, 2^n,
where the range of closeness is +- n.
21 is the smallest number of differently sized squares needed to square the square
Squaring the square
Squaring the square is the problem of tiling an integral square using only other integral squares. The name was coined in a humorous analogy with squaring the circle. Squaring the square is an easy task unless additional conditions are set...
.
In music
- British indie rock band Mystery JetsMystery JetsMystery Jets are an English five-piece indie band, formerly based on Eel Pie Island in Twickenham, London. The band was formed by Henry Harrison , Blaine Harrison and William Rees when the boys were still at school and would send each other songs on cassettes...
released an album entitled Twenty One in 2008. - "Twenty-one" is also a song from Eagles
- "Twenty one" is the name of the song from No need to argueNo Need to ArgueNo Need to Argue is the second studio album by Irish rock band The Cranberries, released in 1994. It was the band's most successful album, and has sold about 17 million copies worldwide. It contains the band's most successful single to date, "Zombie". The album's mood is darker than that on...
by The CranberriesThe CranberriesThe Cranberries are an Irish rock band formed in Limerick in 1989 under the name The Cranberry Saw Us, later changed by vocalist Dolores O'Riordan. The band currently consists of O'Riordan, guitarist Noel Hogan, bassist Mike Hogan and drummer Fergal Lawler... - 2NE12NE1Both the song and the group became popular online: Fire topped Mnet's online chart and 2NE1 became a popular search term. The group was awarded three Cyworld Digital Music Awards; "Lollipop" and "Fire" both won "Song of the Month" and the group won "Rookie of the Month" for May 2009...
is the name of a girl group originating South Korea meaning "New Evolution of the 21st Century" - Green DayGreen DayGreen Day is an American punk rock band formed in 1987. The band consists of lead vocalist and guitarist Billie Joe Armstrong, bassist and backing vocalist Mike Dirnt, and drummer Tre Cool...
has a song called 21 Guns21 Guns (song)"21 Guns" is a song by American rock band Green Day. It was released as the second single from their eighth album, 21st Century Breakdown. The single was released through Reprise Records on May 25, 2009 as a digital download and July 14, 2009 as a CD single...
. - British soul singer Adele'sAdele (singer)Adele Laurie Blue Adkins , known professionally as Adele, is an English singer-songwriter. She was the first recipient of the Brit Awards Critics' Choice and was named the number-one predicted breakthrough act of 2008 in an annual BBC poll of music critics, Sound of 2008...
second album was called 2121 (Adele album)21 is the second studio album by English recording artist Adele. Released on 24 January 2011 in the United Kingdom and most of Europe, and on 22 February 2011 in North America, the album was named after the age of the singer at the time of its production...
Age 21
In several countries 21 is the age of majorityAge of majority
The age of majority is the threshold of adulthood as it is conceptualized in law. It is the chronological moment when minors cease to legally be considered children and assume control over their persons, actions, and decisions, thereby terminating the legal control and legal responsibilities of...
. See also: Coming of age
Coming of age
Coming of age is a young person's transition from childhood to adulthood. The age at which this transition takes place varies in society, as does the nature of the transition. It can be a simple legal convention or can be part of a ritual, as practiced by many societies...
, Voting age
Voting age
A voting age is a minimum age established by law that a person must attain to be eligible to vote in a public election.The vast majority of countries in the world have established a voting age. Most governments consider that those of any age lower than the chosen threshold lack the necessary...
, Legal drinking age
Legal drinking age
Laws about the legal drinking age cover a wide range of issues and behaviours, addressing when and where alcohol can be consumed. The minimum age alcohol can be legally consumed can be different to the age when it can be purchased. These laws vary among different countries and many laws have...
.
In most USA states 21 is the drinking age.
In some countries it is the voting age.
In sports
- The jersey numberSquad numberIn team sports, the squad number, shirt number, jersey number, sweater number, uniform number or simply a number is the number worn on a player's uniform, to identify and distinguish each player from others wearing the same or similar uniforms...
21 has been retired by several North American sports teams in honor of past playing greats or other key figures:- In Major League BaseballMajor League BaseballMajor League Baseball is the highest level of professional baseball in the United States and Canada, consisting of teams that play in the National League and the American League...
:- The Cleveland IndiansCleveland IndiansThe Cleveland Indians are a professional baseball team based in Cleveland, Ohio. They are in the Central Division of Major League Baseball's American League. Since , they have played in Progressive Field. The team's spring training facility is in Goodyear, Arizona...
, for Hall of FamerNational Baseball Hall of Fame and MuseumThe National Baseball Hall of Fame and Museum is an American history museum and hall of fame, located at 25 Main Street in Cooperstown, New York, operated by private interests serving as the central point for the study of the history of baseball in the United States and beyond, the display of...
Bob LemonBob LemonRobert Granville Lemon was an American right-handed pitcher in Major League Baseball. He was elected to the Baseball Hall of Fame in 1976....
. - The Milwaukee Braves, for Hall of Famer Warren SpahnWarren SpahnWarren Edward Spahn was an American Major League Baseball left-handed pitcher. He played his entire 21-year baseball career in the National League. He won 20 games each in 13 seasons, including a 23-7 record when he was age 42...
; the number continues to be honored by the team in its current home of AtlantaAtlanta BravesThe Atlanta Braves are a professional baseball club based in Atlanta, Georgia. The Braves are a member of the Eastern Division of Major League Baseball's National League. The Braves have played in Turner Field since 1997....
. - The Pittsburgh PiratesPittsburgh PiratesThe Pittsburgh Pirates are a Major League Baseball club based in Pittsburgh, Pennsylvania. They play in the Central Division of the National League, and are five-time World Series Champions...
, for Hall of Famer Roberto ClementeRoberto ClementeRoberto Clemente Walker was a Puerto Rican Major League Baseball right fielder. He was born in Carolina, Puerto Rico, the youngest of seven children. Clemente played his entire 18-year baseball career with the Pittsburgh Pirates . He was awarded the National League's Most Valuable Player Award in...
, following his death in a plane crash while delivering humanitarian aid to victims of an earthquake1972 Nicaragua earthquakeThe 1972 Nicaragua earthquake was an earthquake that occurred at 12:29 a.m. local time on Saturday, December 23, 1972 near Managua, the capital of Nicaragua. It had a magnitude of 6.2 and occurred at a depth of about 5 kilometers beneath the centre of the city. Within an hour after the main...
in NicaraguaNicaraguaNicaragua is the largest country in the Central American American isthmus, bordered by Honduras to the north and Costa Rica to the south. The country is situated between 11 and 14 degrees north of the Equator in the Northern Hemisphere, which places it entirely within the tropics. The Pacific Ocean...
.
- The Cleveland Indians
- In the NBANational Basketball AssociationThe National Basketball Association is the pre-eminent men's professional basketball league in North America. It consists of thirty franchised member clubs, of which twenty-nine are located in the United States and one in Canada...
:- The Atlanta HawksAtlanta HawksThe Atlanta Hawks are an American professional basketball team based in Atlanta, Georgia. They are part of the Southeast Division of the Eastern Conference in the National Basketball Association .-The first years:...
, for Hall of Famer Dominique WilkinsDominique WilkinsJacques Dominique Wilkins is a retired American professional basketball player who primarily played for the Atlanta Hawks of the NBA...
. - The Boston CelticsBoston CelticsThe Boston Celtics are a National Basketball Association team based in Boston, Massachusetts. They play in the Atlantic Division of the Eastern Conference. Founded in 1946, the team is currently owned by Boston Basketball Partners LLC. The Celtics play their home games at the TD Garden, which...
, for Hall of Famer Bill SharmanBill SharmanWilliam Walton "Bill" Sharman is a former professional basketball player and coach. Sharman completed high school in the rural city of Porterville, California and is mostly known for his time with the Boston Celtics in the 1950s, partnering with Bob Cousy in what some consider the greatest...
. - The Detroit PistonsDetroit PistonsThe Detroit Pistons are a franchise of the National Basketball Association based in Auburn Hills, Michigan. The team's home arena is The Palace of Auburn Hills. It was originally founded in Fort Wayne, Indiana as the Fort Wayne Pistons as a member of the National Basketball League in 1941, where...
, for Hall of Famer Dave BingDave BingDavid "Dave" Bing is the mayor of Detroit, Michigan, a businessman, and a retired American professional basketball player who played 12 seasons in the National Basketball Association , primarily for the Detroit Pistons...
. - The Sacramento KingsSacramento KingsThe Sacramento Kings are a professional basketball team based in Sacramento, California, United States. They are currently members of the Western Conference of the National Basketball Association...
, for Vlade DivacVlade DivacVlade Divac is a retired Yugoslav and Serbian professional basketball player who spent most of his career in the NBA. At , he played center and was known for his passing skills...
. - The Minnesota TimberwolvesMinnesota TimberwolvesThe Minnesota Timberwolves are an American professional basketball team based in Minneapolis, Minnesota. They play in the Northwest Division of the Western Conference in the National Basketball Association . Founded in 1989, the team is currently owned by Glen Taylor...
have not retired the number, but have not issued it since Kevin GarnettKevin GarnettKevin Maurice Garnett is an American professional basketball player who currently plays power forward for the Boston Celtics of the National Basketball Association . After a high school basketball career at Farragut Career Academy which included winning a national player of the year award, he...
was traded from the team in 2007.
- The Atlanta Hawks
- In the NHLNational Hockey LeagueThe National Hockey League is an unincorporated not-for-profit association which operates a major professional ice hockey league of 30 franchised member clubs, of which 7 are currently located in Canada and 23 in the United States...
:- The Chicago BlackhawksChicago BlackhawksThe Chicago Blackhawks are a professional ice hockey team based in Chicago, Illinois. They are members of the Central Division of the Western Conference of the National Hockey League . They have won four Stanley Cup championships since their founding in 1926, most recently coming in 2009-10...
, for Hall of FamerHockey Hall of FameThe Hockey Hall of Fame is located in Toronto, Ontario, Canada. Dedicated to the history of ice hockey, it is both a museum and a hall of fame. It holds exhibits about players, teams, National Hockey League records, memorabilia and NHL trophies, including the Stanley Cup...
Stan MikitaStan MikitaStanislav "Stan" Mikita , is a Slovak-born Canadian retired professional ice hockey player, generally regarded as the best centre of the 1960s. In 1961, he won the Stanley Cup with the Chicago Blackhawks, with whom he played his entire career.-Early life:Mikita was born in Sokolče, Slovak Republic...
. - The Colorado AvalancheColorado AvalancheThe Colorado Avalanche are a professional ice hockey team based in Denver, Colorado, United States. They are members of the Northwest Division of the Western Conference of the National Hockey League . The Avalanche have won the Stanley Cup twice, in 1995–96 and 2000–01. The franchise...
, for likely future Hall of Famer Peter ForsbergPeter ForsbergPeter Mattias "Foppa" Forsberg is a retired Swedish professional ice hockey player and currently an assistant general manager of Modo Sports. Known for his on-ice vision and physical play, Forsberg is considered one of the most complete players of his generation...
. - The Pittsburgh PenguinsPittsburgh PenguinsThe Pittsburgh Penguins are a professional ice hockey team based in Pittsburgh, Pennsylvania. They are members of the Atlantic Division of the Eastern Conference of the National Hockey League . The franchise was founded in 1967 as one of the first expansion teams during the league's original...
, for Michel BrièreMichel BriereMichel Edouard Brière was an NHL hockey player whose life and career was cut short due to an automobile accident in 1970.-Playing career:...
. - The Toronto Maple LeafsToronto Maple LeafsThe Toronto Maple Leafs are a professional ice hockey team based in Toronto, Ontario, Canada. They are members of the Northeast Division of the Eastern Conference of the National Hockey League...
have a policy of not retiring numbers unless the player honoured either died or suffered a career-ending incident while a member of the team. Other players whose numbers would otherwise be retired instead have their numbers enshrined by the team as "Honoured Numbers", which remain in circulation for future players. The number 21 is currently honoured for Hall of Famer Börje SalmingBörje SalmingAnders Börje Salming , nicknamed "The King", is a retired Swedish professional ice hockey defenceman. He played for Kiruna AIF, Brynäs IF, the Toronto Maple Leafs, the Detroit Red Wings, and AIK. Salming was one of the first European players to make an impact in the National Hockey League , paving...
.
- The Chicago Blackhawks
- No NFLNational Football LeagueThe National Football League is the highest level of professional American football in the United States, and is considered the top professional American football league in the world. It was formed by eleven teams in 1920 as the American Professional Football Association, with the league changing...
team has retired the number.
- In Major League Baseball
- 2121 (basketball)Twenty-one, also called 21, American, cutthroat, hustle, roughhouse or rough, is a popular variation of street basketball. The game is played most often with three to five players on a half court, typically when not enough players are available to at least play three-on-three...
is a variation of street basketball, in which each player, of which there can be any number, plays for himself only (i.e. not part of a team); the name comes from the requisite number of baskets. - In badmintonBadmintonBadminton is a racquet sport played by either two opposing players or two opposing pairs , who take positions on opposite halves of a rectangular court that is divided by a net. Players score points by striking a shuttlecock with their racquet so that it passes over the net and lands in their...
, and table tennisTable tennisTable tennis, also known as ping-pong, is a sport in which two or four players hit a lightweight, hollow ball back and forth using table tennis rackets. The game takes place on a hard table divided by a net...
(before 2001), 21 points are required to win a game. - Eyeshield 21Eyeshield 21is a manga about American football written by Riichiro Inagaki and illustrated by Yusuke Murata. It has been adapted into an anime movie in 2004 , an anime television series in 2005, several video games and a trading card game from Konami. The manga is serialized in Shueisha's Weekly Shōnen Jump...
(アイシールド21 Aishīrudo nijūichi) is a JapanJapanJapan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
ese animation about football - In the NASCAR Sprint Cup Series the number 21 has long been the car number for Wood Brothers RacingWood Brothers RacingWood Brothers Racing is an American auto racing team that competes in the NASCAR Sprint Cup, Nationwide, and Camping World Truck Series. The team was formed in 1950 by the sons of Walter and Ada Wood, thus the Wood Brothers...
In other fields
21 is:- The current century—spanning the years from 2001 to 2100—referred to as the 21st century. The approach of this century inspired many forward-looking 20th century events and company and product names, such as the Century 21 ExpositionCentury 21 ExpositionThe Century 21 Exposition was a World's Fair held April 21, 1962, to October 21, 1962 in Seattle, Washington.Nearly 10 million people attended the fair...
(another name for the 1962 Seattle World's Fair), Century 21 Real Estate, and Century 21 Television (producers of Sylvia and Gerry Anderson SupermarionationSupermarionationSupermarionation is a puppetry technique devised in the 1960s by British production company AP Films. It was used extensively in the company's numerous Gerry and Sylvia Anderson-produced action-adventure series, the most famous of which was Thunderbirds...
shows like ThunderbirdsThunderbirds (TV series)Thunderbirds is a British mid-1960s science fiction television show devised by Gerry and Sylvia Anderson and made by AP Films using a form of marionette puppetry dubbed "Supermarionation"...
and Captain Scarlet and the MysteronsCaptain Scarlet and the MysteronsCaptain Scarlet and the Mysterons, often referred to as Captain Scarlet, is a 1960s British science-fiction television series produced by the Century 21 Productions company of Gerry and Sylvia Anderson, John Read and Reg Hill...
). - The Twenty-first AmendmentTwenty-first Amendment to the United States ConstitutionThe Twenty-first Amendment to the United States Constitution repealed the Eighteenth Amendment to the United States Constitution, which had mandated nationwide Prohibition...
repealed the Eighteenth AmendmentEighteenth Amendment to the United States ConstitutionThe Eighteenth Amendment of the United States Constitution established Prohibition in the United States. The separate Volstead Act set down methods of enforcing the Eighteenth Amendment, and defined which "intoxicating liquors" were prohibited, and which were excluded from prohibition...
, thereby ending ProhibitionProhibitionProhibition of alcohol, often referred to simply as prohibition, is the practice of prohibiting the manufacture, transportation, import, export, sale, and consumption of alcohol and alcoholic beverages. The term can also apply to the periods in the histories of the countries during which the...
. - Illinois - the 'Land of Lincoln' - is the 21st state to join the United States. Abraham Lincoln moved to Illinois when he was 21 and he met his future wife - Mary Todd - in Springfield when she was 21. Illinois currently has 21 electoral votes in the US Presidential Election.
- Pier 21Pier 21Pier 21, a former ocean liner terminal, is Canada's National Museum of Immigration in Halifax, Nova Scotia.It operated as an ocean liner terminal and immigration shed from 1928 to 1971 and became an immigration museum in 1999. Pier 21 is Canada's last remaining ocean immigration shed...
was, from 1928 to 1971, the place where immigrants entered CanadaCanadaCanada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...
. It was called the "Gateway to Canada." - Forever 21Forever 21Forever 21 is an American chain of clothing retailers with branches in major cities in The United States, Puerto Rico, Canada, Europe, Asia, and the Middle East that offers fashion and accessories for young women and men....
(also operating as XXI Forever) is a US-based chain of clothing stores that was founded in 1984. - The number of spots on a standard cubical (six-sided) dieDieDie usually refers to the action of death.Die may also refer to:-Objects:* Die , a material-shaping device* Die , a rectangular piece of a semiconductor wafer* One of a set of dice, gambling or game devices...
(1+2+3+4+5+6) - The number of firings in a 21-gun salute21-gun saluteGun salutes are the firing of cannons or firearms as a military or naval honor.The custom stems from naval tradition, where a warship would fire its cannons harmlessly out to sea, until all ammunition was spent, to show that it was disarmed, signifying the lack of hostile intent...
honoring RoyaltyRoyal familyA royal family is the extended family of a king or queen regnant. The term imperial family appropriately describes the extended family of an emperor or empress, while the terms "ducal family", "grand ducal family" or "princely family" are more appropriate to describe the relatives of a reigning...
or leaders of countries - A card gameCard gameA card game is any game using playing cards as the primary device with which the game is played, be they traditional or game-specific. Countless card games exist, including families of related games...
, also called vingt-et-un (French for "twenty-one"), pontoon, or blackjackBlackjackBlackjack, also known as Twenty-one or Vingt-et-un , is the most widely played casino banking game in the world... - There are 21 trump cards of the tarot deck if one does not consider The FoolThe Fool (Tarot card)The Fool or The Jester is one of the 78 cards in a Tarot deck; one of the 22 Trump cards that make up the Major Arcana. The Fool is unnumbered...
to be a proper trump card. - Twenty OneTwenty One (game show)Twenty One is an American game show which aired in the late 1950s. While it included the most popular contestant of the quiz show era, it became notorious for being a rigged quiz show which nearly caused the demise of the entire genre in the wake of United States Senate investigations...
, a TV quiz showQuiz ShowQuiz Show is a 1994 American historical drama film produced and directed by Robert Redford. Adapted by Paul Attanasio from Richard Goodwin's memoir Remembering America, the film is based upon the Twenty One quiz show scandal of the 1950s...
that ran from 1956 to 1958, most remembered for the scandal that the wins were fixed (see Quiz show scandalsQuiz show scandalsThe American quiz show scandals of the 1950s were a series of revelations that contestants of several popular television quiz shows were secretly given assistance by the show's producers to arrange the outcome of a supposedly fair competition....
). It was remade in 2000. - Twenty-OneTwenty-One (film)Twenty-One is a British-American drama film directed by Don Boyd and co-scripted by him with Zoë Heller. Patsy Kensit stars as the 21-year-old protagonist. It premiered at the Sundance Film Festival in February 1991...
, a 1991 independent film, starring Patsy KensitPatsy KensitPatricia Jude Francis "Patsy" Kensit is an English actress, singer, model and former child star, known for her television and film appearances. Her films include Lethal Weapon 2 and she has been married to rock stars Jim Kerr and Liam Gallagher, as well as herself fronting the band Eighth Wonder...
. - The title of at least four different movies:
- A 1918 comedy starring Bryant WashburnBryant WashburnBorn Franklin Bryant Washburn , Bryant Washburn was an American film actor. He appeared in 330 films between 1911 and 1947....
and Gertrude Selby - A 1923 drama starring Richard BarthelmessRichard BarthelmessRichard Semler "Dick" Barthelmess was an Oscar-nominated silent film star.-Early life:Barthelmess was educated at Hudson River Military Academy at Nyack and Trinity College at Hartford, Connecticut...
and Dorothy MackaillDorothy MackaillDorothy Mackaill was an English-born American actress, most notably of the silent film era and into the early 1930s.-Early life:... - A 1991 drama starring Patsy KensitPatsy KensitPatricia Jude Francis "Patsy" Kensit is an English actress, singer, model and former child star, known for her television and film appearances. Her films include Lethal Weapon 2 and she has been married to rock stars Jim Kerr and Liam Gallagher, as well as herself fronting the band Eighth Wonder...
- A 2008 drama21 (2008 film)21 is a 2008 drama film directed by Australian director Robert Luketic and stars Jim Sturgess, Kevin Spacey, Laurence Fishburne, Kate Bosworth, Liza Lapira, Jacob Pitts, and Aaron Yoo. The film is inspired by the true story of the MIT Blackjack Team as told in Bringing Down the House, the...
starring Kevin SpaceyKevin SpaceyKevin Spacey, CBE is an American actor, director, screenwriter, producer, and crooner. He grew up in California, and began his career as a stage actor during the 1980s, before being cast in supporting roles in film and television...
, Laurence FishburneLaurence FishburneLaurence John Fishburne III is an American film and stage actor, playwright, director, and producer. He is perhaps best known for his roles as Morpheus in the Matrix science fiction film trilogy, as Cowboy Curtis on the 1980's television show Pee-wee's Playhouse, and as singer-musician Ike Turner...
, and Kate BosworthKate BosworthCatherine Ann "Kate" Bosworth is an American actress. Bosworth starred in the television series Young Americans, in which she played Bella Banks. She became known with a leading role in 2002's Blue Crush. The following year, Bosworth played the teenage girlfriend of porn star John Holmes in...
, based on the book Bringing Down the HouseBringing Down the House (book)Bringing Down the House: The Inside Story of Six MIT Students Who Took Vegas for Millions is a book by Ben Mezrich about a group of MIT card counters commonly known as the MIT Blackjack Team. While represented as non-fiction by Mezrich and Free Press, the book contains significant fictional elements...
.- In the title of the TV show 21 Jump Street21 Jump Street21 Jump Street is an American police procedural crime drama television series that aired on the Fox Network from April 12, 1987, to April 27, 1991, with a total of 103 episodes. The series focused on a squad of youthful-looking undercover police officers investigating crimes in high schools,...
, starring Johnny DeppJohnny DeppJohn Christopher "Johnny" Depp II is an American actor, producer and musician. He has won the Golden Globe Award and Screen Actors Guild award for Best Actor. Depp rose to prominence on the 1980s television series 21 Jump Street, becoming a teen idol... - The standard TCP/IP portTCP and UDP portIn computer networking, a port is an application-specific or process-specific software construct serving as a communications endpoint in a computer's host operating system. A port is associated with an IP address of the host, as well as the type of protocol used for communication...
number for FTPFile Transfer ProtocolFile Transfer Protocol is a standard network protocol used to transfer files from one host to another host over a TCP-based network, such as the Internet. FTP is built on a client-server architecture and utilizes separate control and data connections between the client and server...
connection - The Twenty-One DemandsTwenty-One DemandsThe ' were a set of demands made by the Empire of Japan under Prime Minister Ōkuma Shigenobu sent to the nominal government of the Republic of China on January 18, 1915, resulting in two treaties with Japan on May 25, 1915.- Background :...
were a set of demands which were sent to the ChineseChinaChinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...
government by the Japanese government of Okuma ShigenobuOkuma ShigenobuMarquis ; was a statesman in the Empire of Japan and the 8th and 17th Prime Minister of Japan...
in 1915 - 21 Demands of MKS21 demands of MKS21 demands of MKS were a list of demands issued on 17 August 1980 by the Interfactory Strike Committee . The first demand was the right to create independent trade unions...
led to the foundation of Solidarity in Poland. - 21 Demands21 Demands21 Demands are a Dublin based rock band which formed in late summer 2006. On the 9th of March 2007 the band made chart history by releasing a download single called Give Me A Minute which reached the number one slot in the Irish singles chart - making them the first ever unsigned band to reach...
are an Irish rock band. - Number 21 is the name of the plane alleged flown by Gustave WhiteheadGustave WhiteheadGustave Albin Whitehead, born Gustav Albin Weisskopf was an aviation pioneer who emigrated from Germany to the U.S., where he designed and built early flying machines and engines meant to power them....
two years before the Wright brothersWright brothersThe Wright brothers, Orville and Wilbur , were two Americans credited with inventing and building the world's first successful airplane and making the first controlled, powered and sustained heavier-than-air human flight, on December 17, 1903...
' flight - The title of a song by The CranberriesThe CranberriesThe Cranberries are an Irish rock band formed in Limerick in 1989 under the name The Cranberry Saw Us, later changed by vocalist Dolores O'Riordan. The band currently consists of O'Riordan, guitarist Noel Hogan, bassist Mike Hogan and drummer Fergal Lawler...
- 21 is the title of OmarionOmarionOmari Ishmael Grandberry better known as Omarion, is an American R&B singer, actor, songwriter, record producer, dancer, and former lead singer of the R&B group, B2K. Omarion was spotted at a young age by a manager, Christopher B. Stokes, who took a liking to his vocal abilities...
's second album. - 21 is the title of a novel by Patrick O'BrianPatrick O'BrianPatrick O'Brian, CBE , born Richard Patrick Russ, was an English novelist and translator, best known for his Aubrey–Maturin series of novels set in the Royal Navy during the Napoleonic Wars and centred on the friendship of English Naval Captain Jack Aubrey and the Irish–Catalan physician Stephen...
- The 21 Club21 ClubThe 21 Club, often simply 21, is a restaurant and former prohibition-era speakeasy, located at 21 West 52nd Street in New York City.-Environment:...
is a top restaurant in New York City - In IsraelIsraelThe State of Israel is a parliamentary republic located in the Middle East, along the eastern shore of the Mediterranean Sea...
, the number is associated with the profile 21Profile 21Profile 21 is a code used by the military of Israel to classify Israelis who are deemed to have physical or psychological disabilities making them permanently unfit for military service...
(the military profile designation granting an exemption from the military service) - 21 grams is the weight of the soul, according to research by Duncan MacDougall, generally regarded as meaningless. In reference to MacDougall's theory, 21 Grams21 Grams21 Grams is a 2003 American drama film directed by Alejandro González Iñárritu and written by Guillermo Arriaga. It stars Sean Penn, Naomi Watts, Danny Huston, and Benicio del Toro....
is the title of a movie (although MacDougall's theory plays no direct role in the film) - "2121 (single)"21" is the debut single by The Paddingtons, released on 11 October 2004, which was later re-recorded for the album First Comes First. It is this song that convinced Alan McGee to sign them and on the basis of this songs popularity got them an album deal....
" is the title of the debut single by British rock band The PaddingtonsThe PaddingtonsThe Paddingtons are an English indie rock band from Hull, known for their energetic concerts and loyal fanbase. In various interviews bassist Dobbs has said it is due to their willingness to play almost any venue... - 21 Records, a record label
- 21st Circuitry21st Circuitry21st Circuitry was a record label based in San Francisco, United States that was founded in early 1991 and released electro-industrial, industrial rock and similar styles of music. Bands that were signed to or distributed material through the label included Covenant, Unit:187, Hate Dept., Xorcist,...
, a record label - 21 is the designation of a US Highway connecting Wytheville, VirginiaWytheville, VirginiaWytheville is a town in Wythe County, Virginia, United States. The population was 8,211 at the 2010 census. It is the county seat of Wythe County. The town is home to a Chautauqua Festival, held the third weekend in June every year since 1985...
and Beaufort, South CarolinaBeaufort, South CarolinaBeaufort is a city in and the county seat of Beaufort County, South Carolina, United States. Chartered in 1711, it is the second-oldest city in South Carolina, behind Charleston. The city's population was 12,361 in the 2010 census. It is located in the Hilton Head Island-Beaufort Micropolitan...
, a truncation of a route that once connected Cleveland, OhioCleveland, OhioCleveland is a city in the U.S. state of Ohio and is the county seat of Cuyahoga County, the most populous county in the state. The city is located in northeastern Ohio on the southern shore of Lake Erie, approximately west of the Pennsylvania border...
and Jacksonville, FloridaJacksonville, FloridaJacksonville is the largest city in the U.S. state of Florida in terms of both population and land area, and the largest city by area in the contiguous United States. It is the county seat of Duval County, with which the city government consolidated in 1968...
, among other highways past and present. - The number of the French department Côte-d'OrCôte-d'OrCôte-d'Or is a department in the eastern part of France.- History :Côte-d'Or is one of the original 83 departments created during the French Revolution on 4 March 1790. It was formed from part of the former province of Burgundy.- Geography :...
- In the title of the TV show 21 Jump Street