20 (number)
Encyclopedia
20 is the natural number
following 19
and preceding 21
. A group of twenty units may also be referred to as a score.
20 is:
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 19
19 (number)
19 is the natural number following 18 and preceding 20. It is a prime number.In English speech, the numbers 19 and 90 are often confused. When carefully enunciated, they differ in which syllable is stressed: 19 vs 90...
and preceding 21
21 (number)
21 is the natural number following 20 and preceding 22.-In mathematics:Twenty-one is the fifth discrete Semiprime and the second in the family. With 22 it forms the second discrete Semiprime pair...
. A group of twenty units may also be referred to as a score.
In mathematics
- 20 is the basis for vigesimalVigesimalThe vigesimal or base 20 numeral system is based on twenty .- Places :...
number systems. - 20 is the third composite numberComposite numberA 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....
comprising the product of a squared prime and a prime, and also the second member of the (22)q family in this form. - 20 has an aliquot sum of 2222Year 22 was a common year starting on Thursday of the Julian calendar. At the time, it was known as the Year of the Consulship of Agrippa and Galba...
(110% in abundance). Accordingly, 20 is the third abundant number and demonstrates an 8 member aliquot sequence; {2020 (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....
, 2222 (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....
, 1414 (number)14 is the natural number following 13 and preceding 15.In speech, the numbers 14 and 40 are often confused. When carefully enunciated, they differ in which syllable is stressed: 14 vs 40...
, 1010 (number)10 is an even natural number following 9 and preceding 11.-In mathematics:Ten is a composite number, its proper divisors being , and...
, 8, 7, 1, 00 (number)0 is both a numberand the numerical digit used to represent that number in numerals.It fulfills a central role in mathematics as the additive identity of the integers, real numbers, and many other algebraic structures. As a digit, 0 is used as a placeholder in place value systems...
}. - 20 is the smallest primitive abundant numberPrimitive abundant numberIn mathematics a primitive abundant number is an abundant number whose proper divisors are all deficient numbers.For example, 20 is a primitive abundant number because:The first few primitive abundant numbers are:...
. - 20 is the 4th composite numberComposite numberA 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....
in the 7-aliquot tree. Two numbers have 20 as their aliquot sum; the discrete semiprimeSemiprimeIn 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, ... ....
3434 (number)34 is the natural number following 33 and preceding 35.-In mathematics:34 is the ninth distinct semiprime and has four divisors including unity and itself. Its neighbors, 33 and 35, also are distinct semiprimes, having four divisors each, and 34 is the smallest number to be surrounded by numbers...
and the squared prime 361. Only 2 other square primes are abundant 1212 (number)12 is the natural number following 11 and preceding 13.The word "twelve" is the largest number with a single-morpheme name in English. Etymology suggests that "twelve" arises from the Germanic compound twalif "two-leftover", so a literal translation would yield "two remaining [after having ten...
and 1818 (number)18 is the natural number following 17 and preceding 19.In speech, the numbers 18 and 80 are sometimes confused. When carefully enunciated, they differ in which syllable is stressed: 18 vs 80 . However, in dates such as 1864, or when contrasting numbers in the teens, such as 17, 18, 19, the stress...
. - An icosahedronIcosahedronIn geometry, an icosahedron is a regular polyhedron with 20 identical equilateral triangular faces, 30 edges and 12 vertices. It is one of the five Platonic solids....
has 20 faces. A dodecahedron has 20 vertices. - 20 can be written as the sum of three Fibonacci Numbers uniquely, i.e. 20 = 13 + 5 + 2.
- The product of the number of divisors and the number of proper divisors of 20 is exactly 20.
- 20 is the number of quarter or half turns required to optimally solve a Rubik's cube in the worst case.
- 20 is the only number with more than one digit that can be written from base 2 to base 20 using only the digits 0 to 9.
In science
- The atomic numberAtomic numberIn chemistry and physics, the atomic number is the number of protons found in the nucleus of an atom and therefore identical to the charge number of the nucleus. It is conventionally represented by the symbol Z. The atomic number uniquely identifies a chemical element...
of calciumCalciumCalcium is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078 amu. Calcium is a soft gray alkaline earth metal, and is the fifth-most-abundant element by mass in the Earth's crust...
. - The third magic number in physicsMagic number (physics)In nuclear physics, a magic number is a number of nucleons such that they are arranged into complete shells within the atomic nucleus...
. - The IAUIAUIAU may refer to:*International Astronomical Union*International American University*International American University College of Medicine*International Association of Universities*International Association of Ultrarunners...
shower number for Coma BerenicidsComa BerenicidsComa Berenicids is a minor meteor shower, originating from the constellation Coma Berenices. The shower appears from December 8 to January 23 with the estimated maximum on December 20—29 . The radiant during that time is at α=165°, δ=+30°...
.
Biology
- The number of proteinogenic amino acidAmino acidAmino acids are molecules containing an amine group, a carboxylic acid group and a side-chain that varies between different amino acids. The key elements of an amino acid are carbon, hydrogen, oxygen, and nitrogen...
s that are encoded by the standard genetic code. - In some countries, the number 20 is used as an index in measuring visual acuityVisual acuityVisual acuity is acuteness or clearness of vision, which is dependent on the sharpness of the retinal focus within the eye and the sensitivity of the interpretative faculty of the brain....
. 20/20 indicates normal vision at 20 feet, although it is commonly used to mean "perfect vision" (Note that this applies only to countries using the ImperialImperial unitThe system of imperial units or the imperial system is the system of units first defined in the British Weights and Measures Act of 1824, which was later refined and reduced. The system came into official use across the British Empire...
system. The metric equivalent is 6/6). When someone is able to see only after an event how things turned out, that person is often said to have had "20/20 hindsight". - There are 20 baby teeth in the deciduous dentitionDeciduous teethDeciduous teeth, otherwise known as reborner teeth, baby teeth, temporary teeth and primary teeth, are the first set of teeth in the growth development of humans and many other mammals. In some Asian countries they are referred to as fall teeth as they will eventually fall out, while in almost all...
.
In religion
- Age 20 is the age at which Levites in the time of King David were allowed "to do the work for the service of the house of the Lord", the Temple in JerusalemTemple in JerusalemThe Temple in Jerusalem or Holy Temple , refers to one of a series of structures which were historically located on the Temple Mount in the Old City of Jerusalem, the current site of the Dome of the Rock. Historically, these successive temples stood at this location and functioned as the centre of...
(see First Chronicles Chapter 24, verses 24 and 27). In the time of EzraEzraEzra , also called Ezra the Scribe and Ezra the Priest in the Book of Ezra. According to the Hebrew Bible he returned from the Babylonian exile and reintroduced the Torah in Jerusalem...
and NehemiahNehemiahNehemiah ]]," Standard Hebrew Nəḥemya, Tiberian Hebrew Nəḥemyāh) is the central figure of the Book of Nehemiah, which describes his work rebuilding Jerusalem and purifying the Jewish community. He was the son of Hachaliah, Nehemiah ]]," Standard Hebrew Nəḥemya, Tiberian Hebrew Nəḥemyāh) is the...
, following the Babylonian captivityBabylonian captivityThe Babylonian captivity was the period in Jewish history during which the Jews of the ancient Kingdom of Judah were captives in Babylon—conventionally 587–538 BCE....
, it was Levites from the age of 20 upwards who were assigned "to oversee the work of the house of the LORD" (EzraBook of EzraThe Book of Ezra is a book of the Hebrew Bible. Originally combined with the Book of Nehemiah in a single book of Ezra-Nehemiah, the two became separated in the early centuries of the Christian era...
Chapter 3, verse 8).
In sports
- The jersey number 20 has been retired by several North American sports teams in honor of past playing greats:
- 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 Arizona DiamondbacksArizona DiamondbacksThe Arizona Diamondbacks are a professional baseball team based in Phoenix. They play in the West Division of Major League Baseball's National League. From 1998 to the present, they have played in Chase Field...
, for Luis Gonzalez. - The Baltimore OriolesBaltimore OriolesThe Baltimore Orioles are a professional baseball team based in Baltimore, Maryland in the United States. They are a member of the Eastern Division of Major League Baseball's American League. One of the American League's eight charter franchises in 1901, it spent its first year as a major league...
and Cincinnati RedsCincinnati RedsThe Cincinnati Reds are a Major League Baseball team based in Cincinnati, Ohio. They are members of the National League Central Division. The club was established in 1882 as a charter member of the American Association and joined the National League in 1890....
, both 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...
Frank RobinsonFrank RobinsonFrank Robinson , is a former Major League Baseball outfielder and manager. He played from 1956–1976, most notably for the Cincinnati Reds and the Baltimore Orioles. He is the only player to win league MVP honors in both the National and American Leagues...
. - The Kansas City RoyalsKansas City RoyalsThe Kansas City Royals are a Major League Baseball team based in Kansas City, Missouri. The Royals are a member of the Central Division of Major League Baseball's American League. From 1973 to the present, the Royals have played in Kauffman Stadium...
, for Frank White. - The Los Angeles DodgersLos Angeles DodgersThe Los Angeles Dodgers are a professional baseball team based in Los Angeles, California. The Dodgers are members of Major League Baseball's National League West Division. Established in 1883, the team originated in Brooklyn, New York, where it was known by a number of nicknames before becoming...
, for Hall of Famer Don Sutton. - The Philadelphia PhilliesPhiladelphia PhilliesThe Philadelphia Phillies are a Major League Baseball team. They are the oldest continuous, one-name, one-city franchise in all of professional American sports, dating to 1883. The Phillies are a member of the Eastern Division of Major League Baseball's National League...
, for Hall of Famer Mike SchmidtMike SchmidtMichael Jack Schmidt is a Hall of Fame third baseman popularly considered among the greatest third basemen in the history of Major League Baseball. He played his entire career for the Philadelphia Phillies....
. - 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 Pie TraynorPie TraynorHarold Joseph "Pie" Traynor was an American professional baseball player, manager, scout and radio broadcaster. He played his entire Major League Baseball career as a third baseman with the Pittsburgh Pirates . He batted and threw right-handed...
. - The St. Louis CardinalsSt. Louis CardinalsThe St. Louis Cardinals are a professional baseball team based in St. Louis, Missouri. They are members of the Central Division in the National League of Major League Baseball. The Cardinals have won eleven World Series championships, the most of any National League team, and second overall only to...
, for Hall of Famer Lou BrockLou BrockLouis Clark "Lou" Brock is an American former professional baseball player. He began his Major League Baseball career with the Chicago Cubs but, spent the majority of his career as the left fielder for the St. Louis Cardinals. Brock was best known for breaking Ty Cobb's all-time major league...
. - The San Francisco GiantsSan Francisco GiantsThe San Francisco Giants are a Major League Baseball team based in San Francisco, California, playing in the National League West Division....
, for Hall of Famer Monte IrvinMonte IrvinMonford Merrill "Monte" Irvin is a former left fielder and right-handed batter in the Negro leagues and Major League Baseball who played with the Newark Eagles , New York Giants and Chicago Cubs .-Biography:Although born in Haleburg, Alabama, Irvin grew up in Orange, New Jersey, one of five...
, who played for the team when it was the New York GiantsHistory of the New York Giants (NL)The history of the New York Giants, before the franchise moved to San Francisco, lasted from 1883 to 1957. It featured five of the franchise's six World Series wins and 17 of its 21 National League pennants...
.
- The Arizona Diamondbacks
- In the 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...
:- The Detroit LionsDetroit LionsThe Detroit Lions are a professional American football team based in Detroit, Michigan. They are members of the North Division of the National Football Conference in the National Football League , and play their home games at Ford Field in Downtown Detroit.Originally based in Portsmouth, Ohio and...
, for Hall of FamerPro Football Hall of FameThe Pro Football Hall of Fame is the hall of fame of professional football in the United States with an emphasis on the National Football League . It opened in Canton, Ohio, on September 7, 1963, with 17 charter inductees...
Barry SandersBarry SandersBarry Sanders is a former American football running back who spent all of his professional career with the Detroit Lions in the NFL. Sanders left the game just short of the all-time rushing record...
. - The New England PatriotsNew England PatriotsThe New England Patriots, commonly called the "Pats", are a professional football team based in the Greater Boston area, playing their home games in the town of Foxborough, Massachusetts at Gillette Stadium. The team is part of the East Division of the American Football Conference in the National...
, for Gino CappellettiGino CappellettiGino Cappelletti is a former American collegiate and Professional Football player. He played at the University of Minnesota, and was a star in the American Football League for the Boston Patriots...
, who played for the team when it was known by its original name of the Boston Patriots.
- The Detroit Lions
- 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 Portland Trail BlazersPortland Trail BlazersThe Portland Trail Blazers, commonly known as the Blazers, are an American professional basketball team based in Portland, Oregon. They play in the Northwest Division of the Western Conference in the National Basketball Association . The Trail Blazers originally played their home games in the...
, for Maurice LucasMaurice LucasMaurice Lucas was an American professional basketball player. The first two years of his postcollegiate career were spent in the American Basketball Association with the Spirits of St. Louis and Kentucky Colonels...
.
- The Portland Trail Blazers
- 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 Los Angeles KingsLos Angeles KingsThe Los Angeles Kings are a professional ice hockey team based in Los Angeles, California. They are members of the Pacific Division of the Western Conference of the National Hockey League...
, 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...
Luc RobitailleLuc RobitailleLuc Robitaille is a retired Canadian professional ice hockey player. During his 19-season National Hockey League career, Robitaille won a Stanley Cup in 2001–02 with the Detroit Red Wings, and played for the Pittsburgh Penguins and New York Rangers, but is most known for his fourteen seasons,...
.
- The Los Angeles Kings
- In Major League Baseball
- In the NASCARNASCARThe National Association for Stock Car Auto Racing is a family-owned and -operated business venture that sanctions and governs multiple auto racing sports events. It was founded by Bill France Sr. in 1947–48. As of 2009, the CEO for the company is Brian France, grandson of the late Bill France Sr...
Sprint Cup Series, car #20 is currently owned by Joe Gibbs RacingJoe Gibbs RacingJoe Gibbs Racing is a group of NASCAR racing teams owned and operated by former Washington Redskins coach Joe Gibbs, who first started racing on the NASCAR circuit in 1991, and J. D. Gibbs, his son...
. Tony StewartTony StewartAnthony Wayne "Tony" Stewart is an American auto racing driver and owner. Throughout his racing career, Stewart has won titles in Indy cars and stock cars as well as midget, sprint and USAC Silver Crown cars, giving him the recognition of "one of the finest racers of his generation."Stewart...
won the Cup Series title twice in the #20 car while with Joe Gibbs Racing. After Stewart left the team in 2009 to drive for himself, rookie Joey LoganoJoey LoganoJoseph Thomas "Joey" Logano , nicknamed "sliced bread" by Randy LaJoie, is an American stock car auto racing race car driver who currently drives the #20 Home Depot Toyota Camry in the Sprint Cup Series and the #20 GameStop/Sport Clips Toyota Camry in the Nationwide Series for Joe Gibbs...
took over the car. - Twenty20Twenty20Twenty20 is a form of cricket, originally introduced in England for professional inter-county competition by the England and Wales Cricket Board , in 2003. A Twenty20 game involves two teams, each has a single innings, batting for a maximum of 20 overs. Twenty20 cricket is also known as T20 cricket...
is a form of limited overs cricketCricketCricket is a bat-and-ball game played between two teams of 11 players on an oval-shaped field, at the centre of which is a rectangular 22-yard long pitch. One team bats, trying to score as many runs as possible while the other team bowls and fields, trying to dismiss the batsmen and thus limit the...
where each team plays only 20 oversOver (cricket)In the sport of cricket, an over is a set of six consecutive balls bowled in succession. An over is normally bowled by a single bowler. However, in the event of injury preventing a bowler from completing an over, it is completed by a teammate....
.
Age 20
- It is at this point that a person is no longer a teenager
- Twenty is the age of majorityAge of majorityThe 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...
in Japanese tradition. Someone who is exactly twenty years old is described as hatachi
In currency
- A denomination of $US featuring Andrew JacksonAndrew JacksonAndrew Jackson was the seventh President of the United States . Based in frontier Tennessee, Jackson was a politician and army general who defeated the Creek Indians at the Battle of Horseshoe Bend , and the British at the Battle of New Orleans...
's portrait - A denomination of Pound sterlingPound sterlingThe pound sterling , commonly called the pound, is the official currency of the United Kingdom, its Crown Dependencies and the British Overseas Territories of South Georgia and the South Sandwich Islands, British Antarctic Territory and Tristan da Cunha. It is subdivided into 100 pence...
featuring Adam SmithAdam SmithAdam Smith was a Scottish social philosopher and a pioneer of political economy. One of the key figures of the Scottish Enlightenment, Smith is the author of The Theory of Moral Sentiments and An Inquiry into the Nature and Causes of the Wealth of Nations...
's portrait
In films
- 20/20 is a late-night newsmagazine program on ABC-TV
- In the 1974 sci-fi film Dark StarDark Star (film)Dark Star is a 1974 American comedic science fiction motion picture directed by John Carpenter and co-written with Dan O'Bannon.-Backstory and plot:...
, Exponential Thermostellar BombPlanet killerIn science fiction, a planet killer, planet buster, or similar variations on that meaning, is a fictional object or device capable of either destroying an entire planet or otherwise rendering it uninhabitable - a variety of a doomsday device....
number 20 threatens to detonate in the Dark Star's bomb bayBomb bayThe bomb bay or weapons bay on some military aircraft is a compartment to carry bombs, usually in the aircraft's fuselage, with "bomb bay doors" which open at the bottom. The bomb bay doors are opened and the bombs are dropped when over the target or at a specified launching point.Large-sized... - A 20-minute-long program of advertisements and trailers shown before some films playing in American movie theaters is called "The TwentyThe TwentyThe Twenty is the mixture of advertisements, commercials for television shows, movie trailers, and theater chain branding that has become commonplace in American movie theaters. The term itself is derived from the fact that the block often takes up twenty minutes of runtime which has to be...
" (spelled "The 20wenty")
In games
- Twenty questionsTwenty QuestionsTwenty Questions is a spoken parlor game which encourages deductive reasoning and creativity. It originated in the United States and escalated in popularity during the late 1940s when it became the format for a successful weekly radio quiz program....
is a popular party gameParty gameParty games are games that some people play as forms of entertainment at social gatherings. Party games usually involve more than one player. There are a large number and styles of party games available and the one selected will depend on the atmosphere that is sought to be generated... - In the roleplaying game Dungeons and Dragons (as well as other RPGs that use twenty-sided dice), twenty-sided dice play a pivotal role in gameplay, and to "roll a twenty" is significant to the point that it is sometimes used in other, usually related, contexts, similar to the use of "doubles" in reference to MonopolyMonopolyA monopoly exists when a specific person or enterprise is the only supplier of a particular commodity...
.
In music
- Bands with the number twenty in their name include Matchbox TwentyMatchbox TwentyMatchbox Twenty is an American rock band, formed in Orlando, Florida in 1995...
- 20 (Harry Connick, Jr. album), a 1988 albumAlbumAn album is a collection of recordings, released as a single package on gramophone record, cassette, compact disc, or via digital distribution. The word derives from the Latin word for list .Vinyl LP records have two sides, each comprising one half of the album...
by Harry Connick, Jr.Harry Connick, Jr.Joseph Harry Fowler Connick, Jr. is an American singer, big-band leader/conductor, pianist, actor, and composer. He has sold over 25 million albums worldwide. Connick is ranked among the top 60 best-selling male artists in the United States by the Recording Industry Association of America, with... - Twenty (Lynyrd Skynyrd album), a 1997 albumAlbumAn album is a collection of recordings, released as a single package on gramophone record, cassette, compact disc, or via digital distribution. The word derives from the Latin word for list .Vinyl LP records have two sides, each comprising one half of the album...
by Lynyrd SkynyrdLynyrd SkynyrdLynyrd Skynyrd is an American rock band prominent in spreading Southern Rock during the 1970s.Originally formed as the "Noble Five" in Jacksonville, Florida, in 1964, the band rose to worldwide recognition on the basis of its driving live performances and signature tune, Freebird... - 20 (Terminaator album)20 (Terminaator album)20 is the eleventh album by Estonian rock band Terminaator, released in 2007. It is a greatest hits album. The title refers to the twentieth anniversary of the band. The mascot on the cover is drawn by Mart Himbek. The tracks include concert recordings, new versions and new songs...
, a 2007 albumAlbumAn album is a collection of recordings, released as a single package on gramophone record, cassette, compact disc, or via digital distribution. The word derives from the Latin word for list .Vinyl LP records have two sides, each comprising one half of the album...
by TerminaatorTerminaatorTerminaator is an Estonian rock group formed in 1987 by Jaagup Kreem in Tallinn 10. High School . Kreem was in the 7th grade then. The first public performance was in Tallinn 47. High School in the schoolbands' festival. The first time in the studio was in 1989. First songs "Charleen" and "Meeletu... - Twenty (concert), a 2006 concert celebrating the 20th Anniversary of Regine VelasquezRegine VelasquezRegina Encarnacion Ansong Velasquez , better known as Asia's Songbird, Regine Velasquez, is a Filipino singer, actress, record producer and TV host...
held at the Araneta Coliseum, Philippines. It was awarded Best Major Concert Act by the Aliw Awards.
In other fields
- The number of twenty can also be called a score (as Abraham LincolnAbraham LincolnAbraham Lincoln was the 16th President of the United States, serving from March 1861 until his assassination in April 1865. He successfully led his country through a great constitutional, military and moral crisis – the American Civil War – preserving the Union, while ending slavery, and...
did in his Gettysburg AddressGettysburg AddressThe Gettysburg Address is a speech by U.S. President Abraham Lincoln and is one of the most well-known speeches in United States history. It was delivered by Lincoln during the American Civil War, on the afternoon of Thursday, November 19, 1863, at the dedication of the Soldiers' National Cemetery...
or Martin Luther King in his I Have a DreamI Have a Dream"I Have a Dream" is a 17-minute public speech by Martin Luther King, Jr. delivered on August 28, 1963, in which he called for racial equality and an end to discrimination...
speech). - The Twenty Year Curse refers to the pattern of presidents of the United StatesPresident of the United StatesThe President of the United States of America is the head of state and head of government of the United States. The president leads the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces....
who were elected to office in 1840, 1860, 1880, 1900, 1920, 1940, and 1960 to die in office. This pattern ended with the 1980 presidency of ReaganRonald ReaganRonald Wilson Reagan was the 40th President of the United States , the 33rd Governor of California and, prior to that, a radio, film and television actor....
, who survived his time in office and, notably, an attempted assassination. - In the United States ConstitutionUnited States ConstitutionThe Constitution of the United States is the supreme law of the United States of America. It is the framework for the organization of the United States government and for the relationship of the federal government with the states, citizens, and all people within the United States.The first three...
, $20 is the threshold value of civil disputes above which the right to trial by jury is preserved - Yan Tan TetheraYan Tan TetheraYan Tan Tethera is a sheep counting rhyme traditionally used by shepherds in Northern England. Until the Industrial Revolution, the use of traditional number systems was common among shepherds, especially in the dales of the Lake District. The Yan Tan Tethera system was also used for counting...
is a 20-word jingle for counting sheep - The ordinal adjective is vicenary
- There are 20 ounces in Venti size coffees at StarbucksStarbucksStarbucks Corporation is an international coffee and coffeehouse chain based in Seattle, Washington. Starbucks is the largest coffeehouse company in the world, with 17,009 stores in 55 countries, including over 11,000 in the United States, over 1,000 in Canada, over 700 in the United Kingdom, and...
coffee shops.
20 is:
- TwentyTwenty, LincolnshireTwenty is a small, somewhat remote hamlet, east of the market town of Bourne, in Lincolnshire, England. Agriculture is the major industry.-Location:...
, a village in LincolnshireLincolnshireLincolnshire is a county in the east of England. It borders Norfolk to the south east, Cambridgeshire to the south, Rutland to the south west, Leicestershire and Nottinghamshire to the west, South Yorkshire to the north west, and the East Riding of Yorkshire to the north. It also borders... - The code for international direct dial phone calls to EgyptEgyptEgypt , officially the Arab Republic of Egypt, Arabic: , is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Southwest Asia. Egypt is thus a transcontinental country, and a major power in Africa, the Mediterranean Basin, the Middle East and the Muslim world...
- The designation of Interstate 20Interstate 20Interstate 20 is a major east–west Interstate Highway in the Southern United States. I‑20 runs 1,535 miles from near Kent, Texas, at Interstate 10 to Florence, South Carolina, at Interstate 95...
, a freeway that runs from Texas to South CarolinaSouth CarolinaSouth Carolina is a state in the Deep South of the United States that borders Georgia to the south, North Carolina to the north, and the Atlantic Ocean to the east. Originally part of the Province of Carolina, the Province of South Carolina was one of the 13 colonies that declared independence... - CB slangCB slangCB slang is the distinctive anti-language, argot or cant which developed amongst users of citizens' band radio , especially truck drivers in the USA during the 1970s and early-1980s....
for "a place", being short for "10–20", used in reference to a person or object's location - In the French and Portuguese education system, grades are given out of 20. Giving 20/20 is a very rare occasion.