Jonathan Kent (comics)
Encyclopedia
Jonathan Kent and Martha Kent, often referred to as "Ma" and "Pa" Kent, are fictional character
Fictional character
A character is the representation of a person in a narrative work of art . Derived from the ancient Greek word kharaktêr , the earliest use in English, in this sense, dates from the Restoration, although it became widely used after its appearance in Tom Jones in 1749. From this, the sense of...

s published by DC Comics
DC Comics
DC Comics, Inc. is one of the largest and most successful companies operating in the market for American comic books and related media. It is the publishing unit of DC Entertainment a company of Warner Bros. Entertainment, which itself is owned by Time Warner...

. The Kents are the adoptive
Adoption
Adoption is a process whereby a person assumes the parenting for another and, in so doing, permanently transfers all rights and responsibilities from the original parent or parents...

 parents of Superman
Superman
Superman is a fictional comic book superhero appearing in publications by DC Comics, widely considered to be an American cultural icon. Created by American writer Jerry Siegel and Canadian-born American artist Joe Shuster in 1932 while both were living in Cleveland, Ohio, and sold to Detective...

. They live in the rural town of Smallville, Kansas. In most versions of Superman's origin story, Jonathan and Martha were the first to come across the rocket that brought the infant Kal-El
Superman
Superman is a fictional comic book superhero appearing in publications by DC Comics, widely considered to be an American cultural icon. Created by American writer Jerry Siegel and Canadian-born American artist Joe Shuster in 1932 while both were living in Cleveland, Ohio, and sold to Detective...

 to Earth
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...

, with their adopting him shortly thereafter, renaming him Clark Kent
Clark Kent
Clark Kent is a fictional character created by Jerry Siegel and Joe Shuster. Appearing regularly in stories published by DC Comics, he debuted in Action Comics #1 and serves as the civilian and secret identity of the superhero Superman....

 — "Clark" being Martha's maiden name.

The Kents are usually portrayed as caring parents who instill within Clark a strong sense of morals, and they encourage Clark to use his powers for the betterment of humanity. In a few continuities Martha is also the one who creates Clark's superhero costume.

In DC Comics
DC Comics
DC Comics, Inc. is one of the largest and most successful companies operating in the market for American comic books and related media. It is the publishing unit of DC Entertainment a company of Warner Bros. Entertainment, which itself is owned by Time Warner...

 continuity before John Byrne's 1986 reboot
Reboot (continuity)
The verb reboot, in media dealing with serial fiction, means to discard much or even all previous continuity in the series and start anew with fresh ideas...

 of the Superman story, the Kents die shortly after Clark's high school
High school
High school is a term used in parts of the English speaking world to describe institutions which provide all or part of secondary education. The term is often incorporated into the name of such institutions....

 graduation. In the current comics' continuity, they both remain alive even after Clark becomes an adult. As a couple, the Kents were important supporting characters until Pa Kent's death during an attack by the supervillain Brainiac
Brainiac (comics)
Brainiac is a fictional character that appears in comic books published by DC Comics. The character first appeared in Action Comics #242 , and was created by Otto Binder and Al Plastino....

. Ma Kent remained a major supporting character in Superman comics until 2011's New 52, in which both her and her husband are deceased.

Golden and Silver Age versions

Although a "passing motorist" is described as having found the infant Kal-El
Superman
Superman is a fictional comic book superhero appearing in publications by DC Comics, widely considered to be an American cultural icon. Created by American writer Jerry Siegel and Canadian-born American artist Joe Shuster in 1932 while both were living in Cleveland, Ohio, and sold to Detective...

 in the character's first appearance in 1938's Action Comics
Action Comics
Action Comics is an American comic book series that introduced Superman, the first major superhero character as the term is popularly defined...

#1, 1939's Superman #1 introduces Superman's adoptive parents to the mythos, with "Mary Kent" being the only parent given a name. The Kents' first names vary in stories from the 1940s. A 1942 Superman novel, The Adventures of Superman by George Lowther
George Lowther (writer)
George F. Lowther was a writer, producer, director in the earliest days of radio and television. During the 1940s, he was a scriptwriter for the Superman radio programs on the Mutual Radio Network and the author of The Adventures of Superman .Born in New York City, Lowther broke into radio at 13...

, gave the names "Eben and Sarah Kent", which were also used in the Adventures of Superman
Adventures of Superman (TV series)
Adventures of Superman is an American television series based on comic book characters and concepts created in 1938 by Jerry Siegel and Joe Shuster. The show is the first television series to feature Superman and began filming in 1951 in California...

television series, but the first extensive retelling of Superman's origin in Superman #53 (July–August 1948, billed inaccurately as a "10th Anniversary Issue!") names them "John and Mary Kent". This issue firmly establishes that it is the Kents who discover the infant Kal-El (unlike later stories, but like the 1950s television series, the small "space-ship" is utterly destroyed, removing all traces of Kal-El's alien origin). The Kents take him to a "home for foundlings" and express an interest in adopting him, to which the home readily agrees after suffering the disruption of the infant's growing abilities. This story also establishes that "Clark" is Mary Kent's maiden name. Mary and John Kent (in that order) die of natural causes as "Clark grew to manhood", with John on his deathbed imploring Clark to become "a powerful force for good" and suggesting that Clark is a "Superman", a name adopted by Clark in the story's final panel. Oddly, no mention of "Superboy" is included, though that feature had already been established.

Pa Kent is first named Jonathan in Adventure Comics #149 (1950). Ma Kent is first named Martha in Superboy #12 (1951) and Martha in subsequent appearances. Later stories, after the early 1960s introduction of DC
DC Comics
DC Comics, Inc. is one of the largest and most successful companies operating in the market for American comic books and related media. It is the publishing unit of DC Entertainment a company of Warner Bros. Entertainment, which itself is owned by Time Warner...

's Multiverse
Multiverse (DC Comics)
The DC Multiverse is a fictional continuity construct that exists in stories published by comic book company DC Comics. The DC Multiverse consists of numerous worlds, most of them outside DC's main continuity, allowing writers the creative freedom to explore alternative versions of characters and...

 system, declare that the early version of the Kents are named "John and Mary Kent" and live on the world of "Earth-Two
Earth-Two
Earth-Two is a fictional universe appearing in American comic book stories published by DC Comics. First appearing in The Flash #123 , Earth-Two was created to explain how Silver-Age versions of characters such as the Flash could appear in stories with their Golden Age counterparts...

", home of the Golden Age
Golden Age of Comic Books
The Golden Age of Comic Books was a period in the history of American comic books, generally thought of as lasting from the late 1930s until the late 1940s or early 1950s...

 DC superheroes, while the more modern Jonathan and Martha Kent live on the world of "Earth-One
Earth-One
Earth-One is a name given to two fictional universes that have appeared in American comic book stories published by DC Comics...

", home of the Silver Age
Silver Age of Comic Books
The Silver Age of Comic Books was a period of artistic advancement and commercial success in mainstream American comic books, predominantly those in the superhero genre. Following the Golden Age of Comic Books and an interregnum in the early to mid-1950s, the Silver Age is considered to cover the...

 DC superheroes.

The Kents made few appearances in Superman stories until the introduction of the Superboy comic book series in 1949. In this series, they are regular supporting characters of the teenage superhero. The Superboy stories establish the Kents' backstory. Jonathan, a former race car driver, is a farmer
Farmer
A farmer is a person engaged in agriculture, who raises living organisms for food or raw materials, generally including livestock husbandry and growing crops, such as produce and grain...

 on a farm
Farm
A farm is an area of land, or, for aquaculture, lake, river or sea, including various structures, devoted primarily to the practice of producing and managing food , fibres and, increasingly, fuel. It is the basic production facility in food production. Farms may be owned and operated by a single...

 just outside of Smallville. After he and Martha find the toddler Kal-El
Kal-El (Earth One)
The Superman of Earth-One is the Silver Age of Comic Books, Pre-Crisis on Infinite Earths incarnation of Superman.-Retconning a New Beginning:...

 in his rocket, they take him to the Smallville Orphanage
Orphanage
An orphanage is a residential institution devoted to the care of orphans – children whose parents are deceased or otherwise unable or unwilling to care for them...

 and later formally adopt him, naming him "Clark". They soon discover that Clark possesses a fantastic array of superpowers. Around the time Clark starts school, the Kents sell their farm, and the family moves into Smallville, where they open a general store
General store
A general store, general merchandise store, or village shop is a rural or small town store that carries a general line of merchandise. It carries a broad selection of merchandise, sometimes in a small space, where people from the town and surrounding rural areas come to purchase all their general...

. During Clark's early grade school years, Jonathan trains young Clark in the use of his superpowers to the best of his knowledge while urging him to keep the use of his powers a secret. At the age of eight, Clark begins a superhero career as Superboy. Martha creates Superboy's costume out of the blankets inside the rocket that brought him to Earth
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...

, and Jonathan helps him to create a means of making Superboy and Clark appear to be different people by developing Clark's secret identity
Secret identity
A secret identity is an element of fiction wherein a character develops a separate persona , while keeping their true identity hidden. The character also may wear a disguise...

 as a mild-mannered, reserved individual. The Kents assist their adopted son on many adventures as Superboy.

In Superboy vol. 1 #145 (March 1968), Jonathan and Martha are rejuvenated physically and appear younger due to the influence of an alien serum. After this, Jonathan and Martha were drawn by artists as late middle-aged — as opposed to elderly — in appearance until Superman's 1986 reboot. After Clark graduates from high school, Jonathan and Martha take a vacation to the Caribbean Islands
Caribbean
The Caribbean is a crescent-shaped group of islands more than 2,000 miles long separating the Gulf of Mexico and the Caribbean Sea, to the west and south, from the Atlantic Ocean, to the east and north...

, where they contract a fatal and rare tropical disease after handling materials from a pirate's treasure chest they had exhumed; despite Superboy's best efforts, Martha dies, with Jonathan dying soon thereafter. Before dying, Jonathan reminds Clark that he must always use his powers for the benefit of humanity. Clark mourns his parents and moves to Metropolis
Metropolis (comics)
Metropolis is a fictional city that appears in comic books published by DC Comics, and is the home of Superman. Metropolis first appeared by name in Action Comics #16 ....

 to attend college.

In Superman and Superboy stories prior to 1986, both the Kents die before the beginning of Clark's adult career as Superman. However, Jonathan did receive one opportunity to see his adopted son as the Man of Steel. After Superboy assists a group of interplanetary farmers from an alien world, they repay him by granting Jonathan's subconscious desire to see Clark in the future as Superman. Using their advanced technology, they place an artificially-aged Jonathan years into the future, warping reality to make it appear that he had never died, and had maintained contact with his son all along. After spending 30 hours in the future with his adult son, Jonathan is returned by the aliens to his proper time period. The incident is removed from everyone's conscious memory, and the timeline is restored to normal.

The Man of Steel

After comics writer John Byrne rewrote Superman's origin in the 1986 The Man of Steel
The Man of Steel (comic book)
The Man of Steel is a six-issue comic book limited series released in 1986 by DC Comics, several months after the twelve-issue limited series Crisis on Infinite Earths completed. The Man of Steel was written and penciled by John Byrne and inked by Dick Giordano.-Overview:The mini-series was...

limited series
Limited series
A limited series is a comic book series with a set number of installments. A limited series differs from an ongoing series in that the number of issues is determined before production and it differs from a one shot in that it is composed of multiple issues....

, one of the changes he made was keeping Jonathan and Martha Kent alive into Clark's adulthood. The Kents have the same role as in the earlier stories, instilling within Clark the morals needed to become a strong and heroic figure. A Legion of Super-Heroes
Legion of Super-Heroes
The Legion of Super-Heroes is a fictional superhero team in the 30th and 31st centuries of the . The team first appears in Adventure Comics #247 , and was created by Otto Binder and Al Plastino....

/Superman team-up that was written to explain why the Legion still exists even without Superboy confirms that post-Crisis
Crisis on Infinite Earths
Crisis on Infinite Earths is a 12-issue American comic book limited series and crossover event, produced by DC Comics in 1985 to simplify its then 50-year-old continuity...

Jonathan and Martha Kent are younger than their pre-Crisis counterparts, explaining in part why they live on in Clark's adult life.

In this version of events, after a Kryptonian
Krypton (comics)
Krypton is a fictional planet in the DC Comics universe, and the native world of the super-heroes Superman and, in some tellings, Supergirl and Krypto the Superdog. Krypton has been portrayed consistently as having been destroyed just after Superman's flight from the planet, with exact details of...

 "birthing matrix" lands on Earth
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...

, Jonathan and Martha find a newborn infant inside. Taking the infant in just before a major snowstorm strikes (that buried Smallville in snow for a number of months and cut off outsiders' access to the Kent family farm), the couple decides to pass the infant off as their own natural child, naming him "Clark". Clark's powers slowly develop, with his powers fully emerging once he reaches his late teens. After Clark's high school graduation, the Kents tell Clark about his extraterrestrial origins, and Clark leaves Smallville to explore the outside world. After Clark moves to Metropolis
Metropolis (comics)
Metropolis is a fictional city that appears in comic books published by DC Comics, and is the home of Superman. Metropolis first appeared by name in Action Comics #16 ....

, Jonathan and Martha help Clark to create a superhero identity.

In the Man of Steel mini-series and afterwards, the Kents remain farmers through Clark's adult years, although a storyline features them having opened a general store in Smallville. Although Jonathan is still alive in the comics, he suffers a heart attack after The Death of Superman
The Death of Superman
"The Death of Superman" is a 1992 comic book storyline that occurred in DC Comics' Superman titles. The completed multi-issue story arc was given the title The Death and Return of Superman....

storyline,
and he meets Clark in the afterlife and encourages him to return to life with him. The Kents' post-Crisis history is more fully fleshed out in the late 1980s limited series The World of Smallville, with Jonathan's ancestors' history more fully explored in the 1990s limited series The Kents
The Kents
The Kents is the title of a twelve-issue comic book limited series published by DC Comics, from August 1997 to July 1998. The story concerns a troubled generation of ancestors to Jonathan "Pa" Kent . Set in the mid to late 19th century, the two main characters are brothers Nathaniel and Jebediah....

.

Following Clark reaching adulthood and moving to Metropolis, the Kents continue to play a prominent role in Clark's life, and also in the lives of his extended alien family. When the Matrix Supergirl arrives on earth, she moves in for a time with the Kents, who treat her a like a daughter. The Kents later take in Clark's half-clone, Kon-El
Superboy (Kon-El)
Superboy is a fictional character, a comic book superhero in the DC Comics universe. A modern update of the original Superboy, who is a younger version of Superman, the character first appeared in Adventures of Superman #500 , and was created by writer Karl Kesel and artist Tom Grummett.Originally...

, also known as Superboy. They give him the name Conner Kent and care for him in much the same was as they did Clark. However, Conner is not Clark, and while he appreciates everything the Kents did, he does not much like living on a farm. The couple find themselves childless again when Conner dies during the Infinite Crisis
Infinite Crisis
Infinite Crisis is a 2005 - 2006 comic book storyline published by DC Comics, consisting of an eponymous, seven-issue comic book limited series written by Geoff Johns and illustrated by Phil Jimenez, George Pérez, Ivan Reis, and Jerry Ordway, and a number of tie-in books...

. Afterwards, Kara Zor-El, (Clark's recently discovered cousin) visits, questioning the Kents as to why Clark never asked that she live with them. The Kents also help Lois and Clark in dealing with their adopted son, Chris Kent
Chris Kent (comics)
Christopher Kent is a fictional character, a Kryptonian in the , who first appeared in Action Comics #844 , the first part of the Action Comics story arc "Superman: Last Son". Created by Richard Donner and Geoff Johns, he is the biological son of General Zod and Ursa, and the foster son of Clark...

.

Birthright

The Kents were again altered in 2003's Superman: Birthright
Superman: Birthright
Superman: Birthright is a twelve-issue comic book limited series published by DC Comics in 2003 and 2004, written by Mark Waid and drawn by Leinil Francis Yu....

limited series
Limited series
A limited series is a comic book series with a set number of installments. A limited series differs from an ongoing series in that the number of issues is determined before production and it differs from a one shot in that it is composed of multiple issues....

 by Mark Waid
Mark Waid
Mark Waid is an American comic book writer. He is well known for his eight-year run as writer of the DC Comics' title The Flash, as well as his scripting of the limited series Kingdom Come and Superman: Birthright, and his work on Marvel Comics' Captain America...

, which again revised Superman's origins. Jonathan is portrayed as having a more strained relationship with his son, and he and Martha are depicted as far younger at the time of Clark adopting his Superman identity than in past portrayals, appearing here to be scarcely middle-aged.

The Kents' appearances were altered to resemble the younger versions of actor John Schneider
John Schneider (television actor)
John Richard Schneider III is an American actor and singer. He is best known for his portrayal of Bo Duke in the 1980s American television series The Dukes of Hazzard, and as Jonathan Kent on Smallville, a 2001 television adaptation of Superman.Alongside his acting career, Schneider performed as a...

 and actress Annette O'Toole
Annette O'Toole
Annette O'Toole is an American actress, dancer, and singer-songwriter. She is most recently known for portraying Martha Kent, the mother of Clark Kent on the television series Smallville.-Early life and career:...

, who portray the Kents in the Smallville
Smallville
Smallville is the hometown of Superman in comic books published by DC Comics. While growing up in Smallville, the young Clark Kent attended Smallville High with best friends Lana Lang, Chloe Sullivan and Pete Ross...

television series. Although now shown wearing glasses, Jonathan has a full head of blond hair, and Martha has long red tresses. This younger portrayal of the Kents has persisted in the regular DC Universe
DC Universe
The DC Universe is the shared universe where most of the comic stories published by DC Comics take place. The fictional characters Superman, Batman and Wonder Woman are well-known superheroes from this universe. Note that in context, "DC Universe" is usually used to refer to the main DC continuity...

 since Birthright was published.

One of the major subplots of Birthright is a rift between Jonathan and Clark. Although not unprecedented (the post-Crisis Jonathan was critical of Clark for "showing off" by playing football
American football
American football is a sport played between two teams of eleven with the objective of scoring points by advancing the ball into the opposing team's end zone. Known in the United States simply as football, it may also be referred to informally as gridiron football. The ball can be advanced by...

 with his human peers, and the Smallville Jonathan is often in disagreement with Clark over the protection of his son's secret), the strain in their relationship is such that the father and son are barely speaking to each other at the opening of the series. Jonathan has conflicting feelings regarding Clark's powers and his decision to use it for the benefit of humanity; he seems to feel that he has lost the affections of his newly-adult son, partly due to Clark's fascination with his Kryptonian
Kryptonian
Kryptonians are a fictional extraterrestrial race of the DC Comics universe who hail from the planet Krypton. The term originated from the stories of DC Comics superhero, Superman...

 origins. Unlike most previous incarnations of Jonathan Kent, the Birthright Jonathan is not particularly encouraging or instrumental in the formation of Clark's Superman identity or mission, although over the course of the series, father and son are eventually reconciled.

In Birthright, Martha is sassier and more at odds with her husband over how Clark should live than in previous comic incarnations. Because Jonathan has little to do with the creation of the Superman identity, Martha plays a more prominent role in this regard. She is also far more technologically savvy than ever before, communicating with Clark via encrypted e-mail as he travels around the world.

Post-Birthright

Since the events of Infinite Crisis
Infinite Crisis
Infinite Crisis is a 2005 - 2006 comic book storyline published by DC Comics, consisting of an eponymous, seven-issue comic book limited series written by Geoff Johns and illustrated by Phil Jimenez, George Pérez, Ivan Reis, and Jerry Ordway, and a number of tie-in books...

, Superman's continuity has been revised yet again from the Birthright origin, as briefly summarized in Action Comics #850. Although various aspects of his past are clearly retcon
Retcon
Retroactive continuity is the alteration of previously established facts in a fictional work. Retcons are done for many reasons, including the accommodation of sequels or further derivative works in a series, wherein newer authors or creators want to revise the in-story history to allow a course...

ned from the Birthright version, there is little to specifically indicate that the Kents themselves have been substantially changed. They are initially still depicted with younger appearances and the Schneider
John Schneider (television actor)
John Richard Schneider III is an American actor and singer. He is best known for his portrayal of Bo Duke in the 1980s American television series The Dukes of Hazzard, and as Jonathan Kent on Smallville, a 2001 television adaptation of Superman.Alongside his acting career, Schneider performed as a...

 and O'Toole
Annette O'Toole
Annette O'Toole is an American actress, dancer, and singer-songwriter. She is most recently known for portraying Martha Kent, the mother of Clark Kent on the television series Smallville.-Early life and career:...

 likenesses, however this eventually gives way to older, more traditionally generic, grey-haired representations.

Recently, the new origin story for Superman was revealed in Geoff Johns
Geoff Johns
Geoff Johns is an American comic book writer, best known for his work for DC Comics, where he has been Chief Creative Officer since February 2010, in particular for characters such as Green Lantern, The Flash and Superman...

 and Gary Frank
Gary Frank
Gary Frank is a British comic book artist, notable for pencilling on Midnight Nation and Supreme Power, both written by J. Michael Straczynski...

's Superman: Secret Origin
Superman: Secret Origin
Superman: Secret Origin was a six-issue monthly American comic book limited series written by Geoff Johns and illustrated by Gary Frank starring the DC Comics superhero Superman...

. This origin for the most part follows closely with the Silver Age history. For example, Clark's Superboy storyline is re-introduced, as is his history with the Legion of Super-Heroes. Also, unlike Birthright, Jonathan is shown to have an equal standing as Martha in helping Clark create his heroic identity. In fact, Martha and Jonathan are the ones who suggest Clark dons a super-hero costume, which initially Clark is not fond of. In this version, the Kents are both shown to already have graying hair, but are still drawn to be considerably younger, more in-tune to their Birthright counterparts. This version also had Kal-El's spaceship not sensitive to Kryptonian DNA; anyone who got within proximity of the ship was shown the prerecorded message left by Jor-El and Lara, as well as scene of Kryptonian life. Jonathan and Martha are shown images of Krypton, although it is Martha who appears more fascinated with the scientifically advanced and beautiful race of Kryptonians.

At the conclusion of Geoff Johns and Gary Frank's Brainiac
Brainiac (story arc)
"Brainiac" is a five-issue comic book story arc written by Geoff Johns and illustrated by Gary Frank, that was published in Action Comics #866-870 by DC Comics in 2008...

story arc, Pa Kent suffers a fatal heart attack during Brainiac's attack on Earth's sun. His funeral, attended by all his family friends from Smallville, is shown in the Superman: New Krypton Special
Superman: New Krypton
"New Krypton" is a Superman story arc written by Geoff Johns, James Robinson, and Sterling Gates with art by Gary Frank, Alex Ross, Renato Guedes, Jamal Igle and Pete Woods and published by DC Comics...

in which Martha, refusing to be a hindrance for their son, asks Clark to leave her alone at the farm and go attend the more pressing matter of Kandor's restoration and transformation in New Krypton. Despite her reassurances to Clark that she will be okay, Martha begins to suffer from loneliness at being alone on the Kent Farm. Sensing that Martha needed a friend, and also feeling lonely without Clark, Krypto
Krypto
Krypto, also known as Krypto the Superdog, is a fictional character. He is Superman's pet dog in the various Superman comic books published by DC Comics. Krypto's first appearance was in a Superboy story in Adventure Comics #210 in March 1955...

 Clark's Kryptonian dog arrives on the front porch, offering Martha much needed companionship.

During the events of Final Crisis
Final Crisis
Final Crisis is a crossover storyline that appeared in comic books published by DC Comics in 2008, primarily the seven-issue miniseries of the same name written by Grant Morrison. Originally DC announced the project as being illustrated solely by J. G. Jones; artists Carlos Pacheco, Marco Rudy and...

, Clark returns from the 31st Century along with a newly resurrected Conner Kent. Conner moves back in with Martha, finding a new appreciation for Smallville and the farm, following his death. This further helps to assuage Martha's loneliness, as she states that she disliked living in a "quiet" house.

During the Blackest Night storyline, the body of the deceased Earth-Two Superman is turned into a Black Lantern
Black Lantern Corps
The Black Lantern Corps is a fictional organization of revenants appearing in comic books published by DC Comics. The group is composed of deceased fictional characters that seek to eliminate all life from the DC Universe.-Publication history:...

, and goes on a killing spree through Smallville, culminating with the abduction of Pa's coffin from his grave, and the kidnapping of Ma by the Black Lantern Lois Lane of Earth-Two. The Earth-Two Superman declares that Ma and Pa will soon be back in each other's arms. While Conner and Clark deal with Earth-Two Superman, Martha is left to deal with the Black Lantern Lois, who chases Martha into the cornfield. However, Martha fights back against Black Lantern Lois, with the help of Krypto. Together, the two of them light the cornfield on fire, and Krypto temporarily severs Lois' connection to the Black Lantern Ring, allowing for Martha to survive.

After Blackest Night, Lex Luthor briefly acquires near-omnipotent power and attempts to drive Superman mad by forcing him to experience the human emotions he believed the alien merely faked in order to blend in with humanity, only to become outraged when he learned that Superman's defining moment of tragedy was Jonathan's death as he could not accept that his enemy was raised by humans or had such a good upbringing compared to his own anguished relationship with his father. When talking about Superman's recent emotional upheaval, Batman
Batman
Batman is a fictional character created by the artist Bob Kane and writer Bill Finger. A comic book superhero, Batman first appeared in Detective Comics #27 , and since then has appeared primarily in publications by DC Comics...

 speculates that part of the problem is the fact that Clark never really experienced loss prior to Jonathan's death(Krypton's destruction having occurred when he was too young to have any emotional investment in it), although he is confident that his friend will come through recent events.

New 52 DC Relaunch

In September 2011, the entire DC Comics
DC Comics
DC Comics, Inc. is one of the largest and most successful companies operating in the market for American comic books and related media. It is the publishing unit of DC Entertainment a company of Warner Bros. Entertainment, which itself is owned by Time Warner...

 line was rebooted with a new continuity, the New 52. In this new timeline, both Jonathan and Martha Kent have passed away and Clark Kent has to grow into his role as Superman
Superman
Superman is a fictional comic book superhero appearing in publications by DC Comics, widely considered to be an American cultural icon. Created by American writer Jerry Siegel and Canadian-born American artist Joe Shuster in 1932 while both were living in Cleveland, Ohio, and sold to Detective...

 without them.

Television

  • In the Superman theatrical cartoons
    Superman (1940s cartoons)
    The Fleischer & Famous Superman cartoons are a series of seventeen animated Technicolor short films released by Paramount Pictures and based upon the comic book character Superman....

     from the '40s, the Kents are not mentioned as the finders of baby Kal-El's rocket. Instead, the unseen "passing motorist" of the origin story in Action Comics #1 is referred to as the person who finds the rocket and takes the baby to an orphanage.

  • Tom Fadden and Frances Morris play "Eben" and "Sarah" Kent in the pilot for the 1950s Adventures of Superman
    Adventures of Superman (TV series)
    Adventures of Superman is an American television series based on comic book characters and concepts created in 1938 by Jerry Siegel and Joe Shuster. The show is the first television series to feature Superman and began filming in 1951 in California...

    television
    Television
    Television is a telecommunication medium for transmitting and receiving moving images that can be monochrome or colored, with accompanying sound...

     series.

  • Jonathan appears in the Superboy segments of the 1966 New Adventures of Superman cartoon
    Cartoon
    A cartoon is a form of two-dimensional illustrated visual art. While the specific definition has changed over time, modern usage refers to a typically non-realistic or semi-realistic drawing or painting intended for satire, caricature, or humor, or to the artistic style of such works...

    .

  • In the 1988 Ruby-Spears-produced Superman animated series, Alan Oppenheimer
    Alan Oppenheimer
    Alan Oppenheimer is an American character actor and voice actor. He has performed numerous roles on live-action television since the 1960s, and has had an active career doing voice work in cartoons since the 1970s.-Early life:...

     provides Jonathan's voice while Tress MacNeille
    Tress MacNeille
    Tress MacNeille is an American voice actress best known for providing various voices on the animated series The Simpsons, Futurama, Tiny Toon Adventures, Animaniacs, Disney's House of Mouse, Courage the Cowardly Dog, Rugrats, All Grown Up!, Chip 'n Dale Rescue Rangers, and Dave the...

     provided Martha's voice.

  • Stuart Whitman
    Stuart Whitman
    Stuart Maxwell Whitman is an American actor.Stuart Whitman is arguably best-known for playing Marshal Jim Crown in the western television series Cimarron Strip in 1967...

     and Salome Jens
    Salome Jens
    Salome Jens is an American stage, film and television actress. She is perhaps best-known for portraying the Female Changeling on Star Trek: Deep Space Nine.-Life and career:...

     play Jonathan and Martha in the television series Superboy
    Superboy (TV series)
    Superboy is a half-hour live-action television series based on the fictional DC Comics comic book character Kal-El's early years as Superboy. The show ran from 1988–1992 in syndication...

    , which aired from 1988 to 1992 in syndication.

  • In the 1990s television series Lois & Clark: The New Adventures of Superman
    Lois & Clark: The New Adventures of Superman
    Lois & Clark: The New Adventures of Superman was a live-action American television series based on the Superman comic books...

    , Eddie Jones
    Eddie Jones (actor)
    Eddie Jones is an American actor known for playing Clark Kent's father Jonathan Kent in the ABC television series Lois & Clark: The New Adventures of Superman, and Charles Broden Eddie Jones (born 1937 Washington, Pennsylvania) is an American actor known for playing Clark Kent's father Jonathan...

     and K Callan
    K Callan
    K Callan is an American actress known for playing Clark Kent's mother Martha in the ABC television series Lois & Clark: The New Adventures of Superman....

     play Jonathan and Martha Kent. Consistent with the post-Crisis
    Crisis on Infinite Earths
    Crisis on Infinite Earths is a 12-issue American comic book limited series and crossover event, produced by DC Comics in 1985 to simplify its then 50-year-old continuity...

    comics' version of his story, Jonathan is alive and active in the grown Clark's life, and remains dedicated to running his farm. The series portrayed Martha as a lively sixty-something, interested in creative and self-improving pursuits. The activities this version of Martha pursues include taking classes at the local university extension, trying yoga
    Yoga
    Yoga is a physical, mental, and spiritual discipline, originating in ancient India. The goal of yoga, or of the person practicing yoga, is the attainment of a state of perfect spiritual insight and tranquility while meditating on Supersoul...

    , and posing for a nude study by an artist friend, leading Jonathan to think she is having an affair. It is Martha who designs the Superman costume after a number of rejected prototypes (including ones that resemble the costumes of Captain America
    Captain America
    Captain America is a fictional character, a superhero that appears in comic books published by Marvel Comics. The character first appeared in Captain America Comics #1 , from Marvel Comics' 1940s predecessor, Timely Comics, and was created by Joe Simon and Jack Kirby...

    , Daredevil
    Daredevil (Marvel Comics)
    Daredevil is a fictional character, a superhero in comic books published by Marvel Comics. The character was created by writer-editor Stan Lee and artist Bill Everett, with an unspecified amount of input from Jack Kirby, and first appeared in Daredevil #1 .Living in the Hell's Kitchen neighborhood...

     and Green Lantern
    Green Lantern
    The Green Lantern is the shared primary alias of several fictional characters, superheroes appearing in comic books published by DC Comics. The first Green Lantern was created by writer Bill Finger and artist Martin Nodell in All-American Comics #16 .Each Green Lantern possesses a power ring and...

    ). When Superman is teased by the villain Tempus of what would possess him to wear a "fruity" costume of red, yellow and blue tights, Superman (after tying up Tempus) sternly tells him "Because my mother made it for me!"

  • Ma and Pa Kent made occasional appearances in the animated series Superman: The Animated Series
    Superman: The Animated Series
    Superman: The Animated Series is an American animated television series starring DC Comics' flagship character, Superman. The series was produced by Warner Bros. Animation and aired on The WB from September 6, 1996 to February 12, 2000. Warner Bros...

    , Justice League
    Justice League (TV series)
    Justice League is an American animated television series about a team of superheroes which ran from 2001 to 2004 on Cartoon Network. The show was produced by Warner Bros. Animation. It is based on the Justice League of America and associated comic book characters published by DC Comics...

    , and Justice League Unlimited
    Justice League Unlimited
    Justice League Unlimited is an American animated television series that was produced by Warner Bros. Animation and aired on Cartoon Network. Featuring a wide array of superheroes from the DC Comics universe, and specifically based on the Justice League superhero team, it is a direct sequel to the...

    voiced by married couple Shelley Fabares
    Shelley Fabares
    Michele Ann Marie "Shelley" Fabares is an American actress and singer. Fabares is known for her roles as Donna Reed's oldest child, Mary Stone, on The Donna Reed Show , and as Craig T. Nelson's love interest and eventual wife, Christine Armstrong Fox, on the sitcom Coach. She also was Elvis...

     and Mike Farrell
    Mike Farrell
    Michael Joseph "Mike" Farrell is an American actor, best known for his role as Captain B.J. Hunnicutt on the television series M*A*S*H . He is an activist for politically liberal causes....

    .

  • In the 2000s television show Smallville
    Smallville
    Smallville is the hometown of Superman in comic books published by DC Comics. While growing up in Smallville, the young Clark Kent attended Smallville High with best friends Lana Lang, Chloe Sullivan and Pete Ross...

    , Annette O'Toole
    Annette O'Toole
    Annette O'Toole is an American actress, dancer, and singer-songwriter. She is most recently known for portraying Martha Kent, the mother of Clark Kent on the television series Smallville.-Early life and career:...

     (who previously played Lana Lang
    Lana Lang
    Lana Lang is a fictional supporting character in DC Comics' Superman series. Created by writer Bill Finger and artist John Sikela, the character first appears in Superboy #10...

     in the film Superman III
    Superman III
    Superman III is a 1983 superhero film and the third film in the Superman film series based upon the long-running DC Comics superhero. Christopher Reeve, Jackie Cooper, Marc McClure and Margot Kidder are joined by new cast members Annette O'Toole, Annie Ross, Pamela Stephenson, Robert Vaughn and...

    ) and John Schneider
    John Schneider (television actor)
    John Richard Schneider III is an American actor and singer. He is best known for his portrayal of Bo Duke in the 1980s American television series The Dukes of Hazzard, and as Jonathan Kent on Smallville, a 2001 television adaptation of Superman.Alongside his acting career, Schneider performed as a...

     play Martha and Jonathan Kent respectively. Unlike most adaptations, where they are depicted as elderly, this version of the Kents are in their early 40s upon the series' premiere. They were, at first, depicted as just Clark's parents, raising him and helping him cope with his powers, but soon became more fleshed out as they share a history with Lionel Luthor
    Lionel Luthor
    Lionel Luthor is a fictional character in the television series Smallville, portrayed continuously by John Glover. Initially a recurring guest in season one, the character became a series regular in season two and continued with that status until he was written out of the show in the seventh season...

    , whom Jonathan greatly despised since he had to convince Pete Ross
    Pete Ross
    Peter Joseph "Pete" Ross is a fictional character who appears in the Superman comic books published by DC Comics. He was introduced in Superboy #86 .-Pre-Crisis:...

    ' uncles to "sell" their cream corn factory in exchange for having Luthor forge Clark's adoption paperwork. Although Jonathan despises Lionel Luthor, the feelings did not appear to be mutually vindictive as Lionel had once told a Kryptonite-addled Clark that he considered the Kents to be "hardworking, salt of the earth people" who could not possibly have a son trying to attack him, but this may also have been a way of Lionel trying to talk Clark out of attacking him, so as not to shame his adoptive parents. Martha began to develop feelings for Lionel as she worked for him, leading to some tensions in their marriage, but this attraction was always tempered by her knowledge of Lionel's past. Martha and Jonathan also almost had a child when Martha was cured by Clark's spaceship. However, she miscarried
    Miscarriage
    Miscarriage or spontaneous abortion is the spontaneous end of a pregnancy at a stage where the embryo or fetus is incapable of surviving independently, generally defined in humans at prior to 20 weeks of gestation...

     after Clark's attempt to destroy the ship, to stop Jor-El
    Jor-El
    Jor-El is a fictional character, an extraterrestrial in the . He was created by the writer Jerry Siegel and the artist Joe Shuster, and he first appeared in a newspaper comic strip in 1939 as Superman's biological father....

    's consciousness forcing him to leave Smallville, triggered an explosion that struck the car where Martha was in. Clark briefly ran away to Metropolis under the influence of a red kryptonite ring to escape his guilt. They stayed a strong couple up until Jonathan defeated Lex Luthor
    Lex Luthor
    Lex Luthor is a fictional character, a supervillain who appears in comic books published by DC Comics, and the archenemy of Superman, although given his high status as a supervillain, he has also come into conflict with Batman and other superheroes in the DC Universe. Created by Jerry Siegel and...

     in the race to become a Kansas state senator
    Kansas Senate
    The Kansas Senate is the upper house of the Kansas Legislature, the state legislature of the U.S. State of Kansas. It is composed of 40 Senators representing an equal amount of districts, each with a population of at least 60,000 inhabitants. Members of the Senate are elected to a four year term....

    . Jonathan then met with Lionel, who told him he knew Clark's secret, and upon attacking Lionel, he suffered a heart attack and died. Martha took over his role as a senator, but grew closer to Lionel, although she never explored a romantic relationship with him. Later, Martha's role on the show slowly shrinks, until the Season 6 finale "Phantom", when she becomes the junior United States Senator
    United States Senate
    The United States Senate is the upper house of the bicameral legislature of the United States, and together with the United States House of Representatives comprises the United States Congress. The composition and powers of the Senate are established in Article One of the U.S. Constitution. Each...

     from Kansas, effectively leaving the show. Martha returned to Smallville in the Season 9 episode "Hostage", as the Red Queen, having used this new identity to protect Clark from those who conspire against him, and later in the Season 9 finale "Salvation", although not seen, she leaves Clark a box containing his trademark suit which is supposedly designed by Martha herself. Jonathan returned in the Season 10 premiere "Lazarus" to advise his son on how he must confront the approaching darkness
    Darkseid
    Darkseid is a fictional character that appears in comic books published by DC Comics. The character first appeared in Superman's Pal Jimmy Olsen #134 and was created by writer-artist Jack Kirby....

    , and Clark encountered an alternate version of Jonathan in "Kent" when he returned to Earth-2 (A world where Clark was found by Lionel rather than the Kents). Jonathan made a final appearance in the finale, where he and Jor-El reminded Clark that the hero he will become has been shaped by his life in Smallville.

  • In the Legion of Super Heroes animated series, Martha is voiced by Jennifer Hale
    Jennifer Hale
    Jennifer Hale is a Canadian-born American actress and singer best known for her voice over work in video games like Grandia II, the Mass Effect trilogy, Star Wars: Knights of the Old Republic, Tales of Symphonia, the Metroid Prime trilogy, the Metal Gear Solid games, Brütal Legend, and Disney's...

    . Jonathan is only seen at the end of the episode "Fear Factory" in a picture with him, Martha and a baby Clark Kent in a Superman blanket and Legion of Superheroes in the 31st century comic Superman mentions in his interview with Lois Lane that his pa always said he was stronger than a locomotive. Although Lightning Lad sarcastically refers to K3NT, the computer that raised Superman X, also known as Kell-El, as "a regular Ma and Pa Kent".

Film

  • Ed Cassidy
    Ed Cassidy
    Ed "Cass" Cassidy is an American drummer who was one of the founders of the rock group Spirit in 1967.His family moved to Bakersfield, California, in 1931, and he started as a professional musician in 1937. He was in the Navy during World War II, and after his discharge worked at many jobs before...

     and Virginia Carroll
    Virginia Carroll
    Virginia Carroll was an American actress. She was best known for her appearance in a number of western films...

     play "Eben" and Martha Kent in the 1948 Superman movie serial starring Kirk Alyn
    Kirk Alyn
    -External links:...

    .


  • Glenn Ford
    Glenn Ford
    Glenn Ford was a Canadian-born American actor from Hollywood's Golden Era with a career that spanned seven decades...

     and Phyllis Thaxter
    Phyllis Thaxter
    -Early life and career:Born Phyllis St. Felix Thaxter, she was the daughter of Maine Supreme Court Justice Sidney Thaxter and his wife, a former actress. Thaxter worked on Broadway in the 1930s and signed an MGM contract in 1944...

     portray Jonathan and Martha in 1978's Superman. In the movie, Jonathan dies of a heart attack on the farm as young Clark approaches manhood. In 1983's Superman III
    Superman III
    Superman III is a 1983 superhero film and the third film in the Superman film series based upon the long-running DC Comics superhero. Christopher Reeve, Jackie Cooper, Marc McClure and Margot Kidder are joined by new cast members Annette O'Toole, Annie Ross, Pamela Stephenson, Robert Vaughn and...

    , it is mentioned by Lana Lang
    Lana Lang
    Lana Lang is a fictional supporting character in DC Comics' Superman series. Created by writer Bill Finger and artist John Sikela, the character first appears in Superboy #10...

     that Martha has died. Several scenes of Superman IV: The Quest For Peace
    Superman IV: The Quest For Peace
    Superman IV: The Quest for Peace is a 1987 superhero film directed by Sidney J. Furie. It is the fourth film in the Superman film series and the last installment to star Christopher Reeve as the Man of Steel. It is the first film in the series not to be produced by Alexander and Ilya Salkind, but...

    revolve around Clark's decision to sell the family farm in Smallville.

  • Mike Farrell
    Mike Farrell
    Michael Joseph "Mike" Farrell is an American actor, best known for his role as Captain B.J. Hunnicutt on the television series M*A*S*H . He is an activist for politically liberal causes....

     and Shelley Fabares
    Shelley Fabares
    Michele Ann Marie "Shelley" Fabares is an American actress and singer. Fabares is known for her roles as Donna Reed's oldest child, Mary Stone, on The Donna Reed Show , and as Craig T. Nelson's love interest and eventual wife, Christine Armstrong Fox, on the sitcom Coach. She also was Elvis...

     reprise their roles of Jonathan and Martha Kent in Superman: Brainiac Attacks
    Superman: Brainiac Attacks
    Superman: Brainiac Attacks is a 2006 direct-to-video animated film with production designs based on Superman: The Animated Series from Warner Bros. Animation, released on June 20, 2006. It also aired on Toon Disney on June 16, 2008, being the first Superman film to air on Toon Disney. The film...

    .

  • In the Superman: Doomsday
    Superman: Doomsday
    Superman: Doomsday & Beyond is a licensed novel, published in 1993, set in the DC Comics universe, written by Louise Simonson, and with illustrations from Dan Jurgens and José Luis García-López. It is a young-adult version of The Death of Superman comics storyline from 1992...

    animated direct-to-video film, Martha is voiced by Swoosie Kurtz
    Swoosie Kurtz
    Swoosie Kurtz is an American actress. She began her career in theater during the 1970s and shortly thereafter began a career in television, garnering ten nominations and winning one Emmy Award. Her most famous television project was her role on the 1990s NBC drama Sisters...

    . In this film, Jonathan has been dead for many years.

  • In the Superman/Batman: Apocalypse
    Superman/Batman: Apocalypse
    Superman/Batman: Apocalypse is a 2010 direct-to-video animated film based on the Superman/Batman comic storyline "The Supergirl from Krypton" and is a sequel to Superman/Batman: Public Enemies. The art style is partly based on that of Michael Turner, who penciled the Superman/Batman comic book arc...

    animated direct-to-video film, both Jonathan and Martha appear devastated as they come home and see that their farm has been destroyed, but in an attempt to calm them Superman
    Superman
    Superman is a fictional comic book superhero appearing in publications by DC Comics, widely considered to be an American cultural icon. Created by American writer Jerry Siegel and Canadian-born American artist Joe Shuster in 1932 while both were living in Cleveland, Ohio, and sold to Detective...

    and Supergirl
    Supergirl
    Supergirl is a female counterpart to the DC Comics Superman. As his cousin, she shares his super powers and vulnerability to Kryptonite. She was created by writer Otto Binder and designed by artist Al Plastino in 1959. She first appeared in the Action Comics comic book series and later branched out...

    reassure them that they will build them another one.

  • Martha Kent appears in the All-Star Superman
    All-Star Superman (film)
    All-Star Superman is a direct-to-video animated film based on the acclaimed comic book series All-Star Superman by Grant Morrison and Frank Quitely. The film is the tenth in the DC Universe Animated Original Movies line released by Warner Premiere and Warner Bros. Animation and the first in the...

    direct-to-DVD film voiced by Frances Conroy
    Frances Conroy
    Frances Conroy is an American actress. She is best known for playing Ruth, the matriarch of the Fisher family, on Six Feet Under, which earned her a Golden Globe and a Screen Actors Guild Award.-Early life:...

    . Jonathan Kent's name appears in the tombstone when Superman lays a flower on his grave.

  • In the 2006 film Superman Returns
    Superman Returns
    Superman Returns is a 2006 superhero film directed by Bryan Singer. It is the fifth and final installment in the original Superman film series and serves as a alternate sequel to Superman and Superman II by ignoring the events of Superman III and Superman IV: The Quest for Peace .The film stars...

    , Academy Award winner Eva Marie Saint
    Eva Marie Saint
    Eva Marie Saint is an American actress who has starred in films, on Broadway, and on television in a career spanning seven decades. She won an Academy Award for Best Supporting Actress for her performance in the drama film On the Waterfront , and later starred in the thriller film North by...

     portrays Martha Kent. Because the film is a semi-sequel to the 1978 film and 1980's Superman II
    Superman II
    Superman II is the 1980 sequel to the 1978 superhero film Superman and stars Gene Hackman, Christopher Reeve, Terence Stamp, Ned Beatty, Sarah Douglas, Margot Kidder, and Jack O'Halloran. It was the only Superman film to be filmed by two directors...

    , this version could be considered similar to Phyllis Thaxter's portrayal but with differences included: in the 1978 film, Martha Kent appeared physically frail and nearly-homebound, in Superman Returns
    Superman Returns
    Superman Returns is a 2006 superhero film directed by Bryan Singer. It is the fifth and final installment in the original Superman film series and serves as a alternate sequel to Superman and Superman II by ignoring the events of Superman III and Superman IV: The Quest for Peace .The film stars...

    she is much more active, driving a stick-shift truck and helping to lift her 200-pound son out of the smoking wreckage of his space ship. Photos of Jonathan Kent (as played by Glenn Ford) are briefly visible in Martha's living room. In this film, when Clark comes back after an absence of five years, she may have already been dating Ben Hubbard
    Ben Hubbard
    Ben Hubbard is a minor fictional character from the Superman films. He is a neighbor who looks after Martha Kent in Smallville while Clark is in Metropolis...

     but the storyline was cut from the final film.

  • It was announced on March 18, 2011, that Kevin Costner
    Kevin Costner
    Kevin Michael Costner is an American actor, singer, musician, producer, director, and businessman. He has been nominated for three BAFTA Awards, won two Academy Awards, and two Golden Globe Awards. Costner's roles include Lt. John J...

     will portray Jonathan Kent in Superman: Man of Steel, alongside Diane Lane
    Diane Lane
    Diane Lane is an American film actress.Born and raised in New York City, Lane made her screen debut at the age of 13 in George Roy Hill's 1979 film A Little Romance, starring opposite Sir Laurence Olivier. Soon after, she was featured on the cover of Time magazine...

     as Martha Kent.

Video Game

  • Jonathan (voiced by Brandon Young) and Martha Kent (voiced by Diane Perella) appear in DC Universe Online
    DC Universe Online
    DC Universe Online or DCUO is an MMORPG by Sony Online Entertainment – Austin. Jim Lee serves as the game's Executive Creative Director, along with Carlos D'Anda, JJ Kirby, Oliver Nome, Eddie Nuñez, Livio Ramondelli, and Michael Lopez...

    as supporting characters for the heroes.

Parodies

  • Jonathan and Martha Kent are parodied in the Robot Chicken
    Robot Chicken
    Robot Chicken is an American stop motion animated television series created and executive produced by Seth Green and Matthew Senreich along with co-head writers Douglas Goldstein and Tom Root. Green provides many voices for the show...

    episode "Catch Me If You Kangaroo Jack" with Jonathan Kent voiced by Mark Hamill
    Mark Hamill
    Mark Richard Hamill is an American actor, voice artist, producer, director, and writer, best known for his role as Luke Skywalker in the original trilogy of Star Wars. More recently, he has received acclaim for his voice work, in such roles as the Joker in Batman: The Animated Series, Firelord...

     and Martha Kent voiced by Diablo Cody
    Diablo Cody
    Brook Busey , better known by the pen name Diablo Cody, is an American screenwriter, writer, blogger, journalist, and author. She was first known for her candid chronicling of her year as a stripper in her Pussy Ranch blog and her 2006 memoir, Candy Girl: A Year in the Life of an Unlikely Stripper...

    . Jonathan tells a child Clark Kent about how he had slain two aliens that "previously crashed into Smallville" as a warning to Clark if he does not remember his P's and Q's. After the young Clark Kent runs off, Martha tells Jonathan that he scared Clark with Jonathan replying that he cannot even successfully spank him due to his hardened skin.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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