Several elements of the
Superman narrative have remained consistent in the myriad stories published since 1938.
Superman In
Action Comics #1 (1938), Superman is born on an alien world to a technologically advanced species that resembles humans. Shortly after he is born, his planet is destroyed in a natural cataclysm, but his scientist father foresaw the calamity and saves his baby son by sending him to Earth in a small spaceship. The ship is too small to carry anyone else, so Superman's parents are forced to stay behind and die in the cataclysm. The earliest newspaper strips name the planet Krypton, the baby Kal-L, and his biological parents Jor-L and Lora; their names were changed to Jor-El, and Lara in a 1942 spinoff novel by George Lowther. The ship lands in the American countryside, where the baby is discovered by the Kents, a farming couple. The Kents name the boy Clark and raise him in a farming community. A 1947 episode of the radio serial places this yet unnamed community in Iowa. It is named
Smallville in
Superboy #2 (June 1949). The
1978 Superman movie placed it in Kansas, as have most Superman stories since.
New Adventures of Superboy #22 (Oct. 1981) places it in Maryland. In
Action Comics #1 and most stories published before 1986, Superman's powers begin developing in infancy. From 1944 to 1986, DC Comics regularly published stories of Superman's childhood and adolescent adventures, when he called himself "
Superboy". From 1986 on (beginning with
Man of Steel #1), Superman's powers emerged more slowly and he began his superhero career as an adult. The Kents teach Clark he must conceal his otherworldly origins and use his fantastic powers to do good. Clark creates the costumed identity of Superman so as to protect his personal privacy and the safety of his loved ones. As Clark Kent, he wears eyeglasses to disguise his face and wears his Superman costume underneath his clothes so that he can change at a moment's notice. To complete this disguise, Clark avoids violent confrontation, preferring to slip away and change into Superman when danger arises, and in older stories he would suffer occasional ridicule for his apparent cowardice. In
Superboy #78 (1960), Superboy makes his costume out of the indestructible blankets found in the ship he came to Earth in. In
Man of Steel #1 (1986), Martha Kent makes the costume from human-manufactured cloth, and it is rendered indestructible by an aura that Superman projects. The "S" on Superman's chest at first was simply an initial for "Superman". When writing the script for
the 1978 movie,
Tom Mankiewicz made it the crest of Superman's Kryptonian family, the House of El. In the
Bronze Age of Comic Books, Clark Kent was featured in a series that appeared primarily in
The Superman Family, "The Private Life of Clark Kent" where Superman dealt with various situations subtly while remaining Clark. To deflect suspicion that he is Superman, Clark Kent adopted a mainly passive and introverted personality with conservative mannerisms, a higher-pitched voice, and a slight slouch. This personality is typically described as "mild-mannered", as in the opening narration of
Max Fleischer's
Superman animated theatrical shorts. These traits extended into Clark's wardrobe, which typically consists of a bland-colored business suit, a red necktie, black-rimmed glasses, combed-back hair, and occasionally a
fedora. Clark wears his Superman costume underneath his street clothes, allowing easy changes between the two
personae and the dramatic gesture of ripping open his shirt to reveal the familiar "S" emblem when called into action. His hair also changes with the clothing change, with Superman sporting a small curl or
spit curl on his forehead. Superman usually stores his Clark Kent clothing compressed in a secret pouch within his cape, though some stories have shown him leaving his clothes in some covert location (such as the
Daily Planet storeroom) for later retrieval. As Superman's
alter ego, the personality, concept, and name of Clark Kent have become synonymous with
secret identities and innocuous fronts for ulterior motives and activities. In 1992, Superman co-creator Joe Shuster told the
Toronto Star that the name derived from 1930s cinematic leading men
Clark Gable and
Kent Taylor, but the persona from bespectacled silent film comic
Harold Lloyd and himself. Clark's middle name is given variously as either Joseph, Jerome, or Jonathan, being allusions to creators Jerry Siegel and Joe Shuster, and to his adoptive father.
Personality In the original Siegel and Shuster stories, Superman's personality is rough and aggressive. He often uses excessive force and terror against criminals, on some occasions even killing them. This came to an end in late 1940 when new editor
Whitney Ellsworth instituted a code of conduct for his characters to follow, banning Superman from ever killing. The character was softened and given a sense of
humanitarianism. Ellsworth's code, however, is not to be confused with "
the Comics Code", which was created in 1954 by the
Comics Code Authority and ultimately abandoned by every major comic book publisher by the early 21st century. In his first appearances, Superman was considered a vigilante by the authorities, being fired upon by the National Guard as he razed a slum so that the government would create better housing conditions for the poor. By 1942, however, Superman was working side-by-side with the police. Today, Superman is commonly seen as a brave and kind-hearted hero with a strong sense of justice, morality, and righteousness. He adheres to an unwavering moral code instilled in him by his adoptive parents. His commitment to operating within the law has been an example to many citizens and other heroes, but has stirred resentment and criticism among others, who refer to him as the "big blue boy scout". Superman can be rather rigid in this trait, causing tensions in the superhero community. This was most notable with
Wonder Woman, one of his closest friends, after she killed
Maxwell Lord. Having lost his home world of Krypton, Superman is very protective of Earth, and especially of Clark Kent's family and friends. This same loss, combined with the pressure of using his powers responsibly, has caused Superman to feel
lonely on Earth, despite having his friends and parents. Previous encounters with people he thought to be fellow Kryptonians,
Power Girl and
Mon-El, have led to disappointment. The arrival of
Supergirl, who has been confirmed to be his cousin from Krypton, relieved this loneliness somewhat. Superman's
Fortress of Solitude acts as a place of
solace for him in times of loneliness and despair.
Powers, abilities, and weaknesses The catalog of Superman's powers and his strength has varied considerably over the vast body of Superman fiction released since 1938. Since
Action Comics #1 (1938), Superman possesses superhuman strength. The cover of
Action Comics #1 shows him effortlessly lifting a car over his head. Another classic feat of strength on Superman's part is breaking steel chains. In some stories, he is strong enough to shift the orbits of planets and crush coal into diamond with his bare hands. Since
Action Comics #1 (1938), Superman has a highly durable body, invulnerable for most practical purposes. At the very least, bullets bounce harmlessly off his body. In some stories, such as
Kingdom Come, not even a nuclear bomb can harm him. In the earliest stories, Superman's costume is made out of exotic materials that are as tough as he is, which is why it typically does not tear up when he performs superhuman feats. In later stories, beginning with
Man of Steel #1 (1986), Superman's body is said to project an aura that renders invulnerable any tight-fitting clothes he wears, and hence his costume is as durable as he is even if made of common cloth. In
Action Comics #1, Superman possesses superhuman speed, allowing him to run and leap by traveling at supersonic speeds, which he could do to a prodigious degree thanks to his strength, but originally lacks flight. Superman gained the ability to fly in the second episode of
the radio serial in 1940. Superman can run and fly faster than the speed of sound and in some stories, he can even fly faster than the speed of light to travel to distant galaxies. Superman can project and perceive X-rays via his eyes, which allows him to see through objects. He first uses this power in
Action Comics #11 (1939). Certain materials such as lead can block his X-ray vision. Superman can project beams of heat from his eyes which are hot enough to melt steel. He first used this power in
Superman #59 (1949) by applying his X-ray vision at its highest intensity. In later stories, this ability is simply called "heat vision". Superman can hear sounds that are too faint for a human to hear, and at frequencies outside the human hearing range. This ability was introduced in
Action Comics #11 (1939). Since
Action Comics #20 (1940), Superman possesses superhuman breath, which enables him to inhale or blow huge amounts of air, as well as holding his breath indefinitely to remain underwater or space without adverse effects. He has a significant focus of his breath's intensity to the point of freezing targets by blowing on them. The "freeze breath" was first demonstrated in
Superman #129 (1959).
Action Comics #1 (1938) explained that Superman's strength was common to all Kryptonians because they were a species "millions of years advanced of our own". In the first newspaper strips, Jor-El is shown running and leaping like Superman, and his wife survives a building collapsing on her. Later stories explained they evolved superhuman strength simply because of Krypton's higher gravity.
Superman #146 (1961) established that Superman's abilities other than strength (flight, durability, etc.) are activated by the light of Earth's yellow
sun. This was shortly changed to all of his powers including strength being activated by yellow sunlight and deactivated by red sunlight similar to that of Krypton's sun.
Weaknesses Exposure to green
kryptonite radiation nullifies Superman's powers and incapacitates him with pain and nausea; prolonged exposure will eventually kill him. Although green kryptonite is the most commonly seen form, writers have introduced other forms over the years: such as red, gold, blue, white, and black, each with peculiar effects. Gold kryptonite, for instance, nullifies Superman's powers but otherwise does not harm him. Kryptonite first appeared in a 1943 episode of
the radio serial. It first appeared in comics in
Superman #61 (Dec. 1949). Superman lacks special resistances to magic; as established in
Superman #171 (1964), enchanted weapons and magical spells affect Superman as easily as they would a normal human. Like all Kryptonians, Kal-El is also highly susceptible to psychokinetic phenomena ranging along Telekinesis, Illusion casting, Mind control, etc., as shown in
Wonder Woman Vol 2 # 219 (Sept. 2005). A powerful enough psionic can affect either the psyche or microbiology of Superman to induce strokes or mangle his internal organs, as well as disrupt his mind and perceptions of the world, something a young
metahuman showcased in
Superman #48 (Oct. 1990). Many stories describe Superman as being vulnerable to radiation at wavelengths equal to the light of the "red sun" of the planet Krypton, which causes him to temporarily lose his powers. Over the years, writers have invented many other weaknesses for Superman using various science fiction tropes, with some of these weaknesses only existing for a short period of time.
Occasional equipment On occasion, Superman has made use of a special aeroplane called the
Supermobile which has the same abilities as him and can protect him from the radiation of a red sun. Superman has used several
fictional robots that resemble his appearance and have similar abilities.
Superman robots played a particularly dominant role in the late 1950s and 1960s era Superman comics, when readers were first introduced to Superman possessing various robot duplicates. These robots each possessed a fraction of Superman's powers, and were sometimes used to substitute for him on missions or protect his
secret identity. One notable Superman robot was named Ajax, also known as
Wonder Man. Other Superman robots had other names, including Robot Z, Robot X-3, and MacDuff. The idea of Superman robots extended into
Superboy and
Supergirl stories of the period as well, with the two also possessing robotic duplicates. In the early 1970s, the Superman comics largely abandoned the Superman robots as part of a change in tone and writing style. In-universe, the robots are rendered unusable by Earth's pollution levels and artificial radiation. The notion of Superman robots was reintroduced for
post-Crisis comic continuity in a late 1990s storyline. While under
Dominus' control, Superman builds a series of robots to oversee the Earth. Unlike the original Superman robots, they possess a more mechanical appearance. In
Superman (vol. 2) #170,
Krypto nearly kills
Mongul and is confined to the
Fortress of Solitude as punishment. A Superman robot nicknamed "Ned" is employed as Krypto's caretaker. In a later storyline,
Brainiac 8 revived and increased the power to a forgotten Superman robot. The robot attacked the
Teen Titans, killing
Troia and
Omen before it was defeated.
Supporting characters Lois Lane Superman's first and most famous supporting character is
Lois Lane, introduced in
Action Comics #1. She is a fellow journalist at the
Daily Planet. As Jerry Siegel conceived her, Lois considers Clark Kent to be a wimp, but she is infatuated with the bold and mighty Superman, not knowing that Kent and Superman are the same person. Siegel objected to any proposal that Lois discover that Clark is Superman because he felt that, as implausible as Clark's disguise is, the love triangle was too important to the book's appeal. However, Siegel wrote stories in which Lois suspects Clark is Superman and tries to prove it, with Superman always duping her in the end; the first such story was in
Superman #17 (July–August 1942). This was a common plot in comic book stories prior to the 1970s. In a story in
Action Comics #484 (June 1978), Clark Kent admits to Lois that he is Superman, and they marry. This was the first story in which Superman and Lois marry that was not an "imaginary tale". Many Superman stories since then have depicted Superman and Lois as a married couple, but about as many depict them in the classic love triangle. In modern era comic books, Superman and Lois are a stable married couple, and the
Superman supporting cast was further expanded with the introduction of their son,
Jon Kent.
Others Other supporting characters include
Jimmy Olsen, a photographer at the
Daily Planet, who is friends with both Superman and Clark Kent, though in most stories he does not know that Clark is Superman. Jimmy is frequently described as "Superman's pal", and was conceived to give young male readers a relatable character through which they could fantasize being friends with Superman. In the earliest comic book stories, Clark Kent's employer is George Taylor of
The Daily Star, but the second episode of
the radio serial changed this to
Perry White of the
Daily Planet. Clark Kent's foster parents are
Jonathan and Martha Kent. In many stories, one or both of them have died by the time Clark becomes Superman. Clark's parents taught him that he should use his abilities for altruistic means, but that he should also find some way to safeguard his private life.
Antagonists The villains Superman faced in the earliest stories were ordinary humans, such as gangsters, corrupt politicians, and violent husbands; but they soon grew more colorful and outlandish so as to avoid offending censors or scaring children. The mad scientist
Ultra-Humanite, introduced in
Action Comics #13 (June 1939), was Superman's first recurring villain. Superman's best-known nemesis,
Lex Luthor, was introduced in
Action Comics #23 (April 1940) and has been depicted as either a mad scientist or a wealthy businessman (sometimes both). In 1944, the magical imp
Mister Mxyzptlk, Superman's first recurring super-powered adversary, was introduced. Superman's first alien villain,
Brainiac, debuted in
Action Comics #242 (July 1958).
General Zod, who first appeared in
Adventure Comics #283 (April 1961), is a fellow Kryptonian with similar powers. The monstrous
Doomsday, introduced in
Superman: The Man of Steel #17–18 (Nov.-Dec. 1992), was the first villain to evidently kill Superman in physical combat without exploiting Superman's critical weaknesses such as kryptonite.
Alternative depictions The details of Superman's origin story and supporting cast vary across his large body of fiction released since 1938, but most versions conform to the basic template described above. A few stories feature radically altered versions of Superman. An example is the graphic novel
Superman: Red Son, which depicts a communist Superman who rules the Soviet Union. DC Comics has on some occasions published crossover stories where different versions of Superman interact with each other using the plot device of parallel universes. For instance, in the 1960s, the Superman of "Earth-One" would occasionally feature in stories alongside the Superman of "Earth-Two", the latter of whom resembled Superman as he was portrayed in the 1940s. ==Impact and legacy==