This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages)(Learn how and when to remove this template message)
|Race(s)||Humans, Kryptonians, Atlanteans, New Gods|
|Notable characters||Justice Society of America|
Seven Soldiers of Victory
|First appearance||The Flash #123 (September 1961)|
Earth-Two is a fictional universe appearing in American comic books published by DC Comics. First appearing in The Flash #123 (1961), Earth-Two was created to explain differences between the original Golden Age and then-current Silver Age versions of characters such as the Flash, and how the current (Earth-One) versions could appear in stories with their counterparts. This Earth-Two continuity includes DC Golden Age heroes, including the Justice Society of America, whose careers began at the dawn of World War II, concurrently with their first appearances in comics. Earth-Two, along with the four other surviving Earths of the DC Multiverse, were merged into one in the 1985 miniseries Crisis on Infinite Earths. However, following the events of Infinite Crisis, the Multiverse was reborn, although the subsequent Earth-Two was not the same as its pre-Crisis equivalent.
Following the events of Flashpoint, Earth 2 underwent an additional reiteration. While it still houses a team of superheroes, its membership is younger than before. Earth 2 also has a tragic backstory, having been invaded by a horde of alien invaders from Apokolips five years prior to the reboot, ahead of Darkseid's attempted invasion of Prime Earth. In the process, this reality's Superman, Batman and Wonder Woman all died, while its Supergirl and Robin were swept through a dimensional warp to Prime Earth where they became known as Power Girl and Huntress.
- 1 Publication history
- 2 Characters
- 3 Unique features
- 4 Variants
- 5 In other media
- 6 References
- 7 External links
Introduction: Flash of two worlds
Characters from DC Comics were originally suggestive of each existing in their own world, as superheroes never encountered each other. This was soon changed with alliances being formed between certain protagonists. Several publications, including All Star Comics (publishing tales of the Justice Society of America), Leading Comics (publishing tales of the Seven Soldiers of Victory) and other comic books introduced a "shared universe" among several characters during the 1940s. By the 1950s, as the popularity of superheroes was waning, comics shifted to horror, westerns and war. Batman, Superman and Wonder Woman were among the few DC continued to publish.
Beginning in the early 1960s, the popularity of superheroes began to grow. DC introduced more modern versions of its heroes, for example, Hawkman was an alien policeman instead of a reincarnated Egyptian prince. The older heroes were assigned to an alternative reality earth.
Alternative-reality Earths had been used in DC stories before, but were usually not referred to after that particular story. Most of these alternative Earths were usually so vastly different that no one would confuse that Earth and its history with the so-called real Earth. That would change when the existence of another reliable Earth was established in a story titled "Flash of Two Worlds" in which Barry Allen, the modern Flash later referred to as the Flash of Earth-One (the setting of the Silver Age stories) first travels to another Earth, accidentally vibrating at just the right speed to appear on Earth-Two, where he meets Jay Garrick, his Earth-Two counterpart. He claims Gardner Fox's dreams were tuned into Earth-Two, explaining their depiction as a fictional world in earlier Barry Allen stories.
Expanding the concept: revisiting 40s superheroes
Superman was introduced in the 1930s and was the archetype for the modern superhero, and so is depicted in stories set on Earth-Two as the first major reliable costumed superhero on that world, discounting earlier part-time heroes and "mystery men" such as Dr. Occult. Most of the following costumed mystery men history is based on the Earth-Two Superman's initial appearance, where these previously independent operating heroes begin to reliably interact. In order to distinguish him from the later primary version of the character, this Superman was called "Kal-L", using the spelling of Superman's Kryptonian name in his early appearances. He was specifically introduced as an Earth-Two character in Justice League of America #73 (1969). Most superheroes from the Golden Age later followed this trend of operating publicly, while wearing distinctive costuming and interacting in a largely shared universe. The primary characters of Superman and Batman still largely worked independent of team environments.
In the 1970s, as the now annual team up between the Justice League of America and the Justice Society of America had proven popular, DC published the then present day adventures of the Justice Society in the revived All-Star Comics with issue 58, resuming the numbering from the series original run. The story continued in Adventure Comics #460- 465, which featured the death of the Earth-Two Batman. Mr and Mrs Superman, a feature in Superman Family (1974–1982), featured stories of the adventures of married Superman and Lois Lane of Earth-Two. These stories were set at a time in which the Superman of Earth-Two was at a similar age to the then-present-day Superman of Earth-One. In the 1980s, DC published All-Star Squadron which covered the war time history of various superheroes during World War II.
Infinity, Inc., a group made up of the children and heirs of the Justice Society, was introduced in All-Star Squadron #25 (September 1983). There was an eponymous comics series starring the group, which ran from March 1984 through June 1988.
Abandonment: Crisis on Infinite Earths
Crisis on Infinite Earths (1985–1986) was an effort by DC Comics to clean up their continuity, resulting in the multiple universes combining into one. Since then, a handful of characters originating from Earth-Two have consistently remained part of the merged Earth, including Power Girl, Jay Garrick, and Alan Scott. Superman and Lois Lane from Earth-Two (along with Superboy from Earth Prime, and Alexander Luthor, Jr. from Earth-Three) were transported into a ghost-like "paradise dimension" tangential to the new universe.
Following the end of the known Multiverse, more alternate realities were discovered. Even though Earth-Three was destroyed in the Anti-Monitor's anti-matter wave attacks, a new Crime Syndicate (called the "Crime Syndicate of Amerika") developed in the antimatter universe of Qward, which was very different in background and power base from the pre-Crisis Earth-Three group, though same in the number of members. After the Kingdom event, Hypertime and divergent realities were revealed, but never supposed to be accessed, as stated in the Zero Hour event. They were later revealed when a directly-parallel Flash (Walter West aka the "Dark Flash") entered the mainstream DC Universe and threatened to destroy it. These alternate realities are usually addressed as "Elsewhere" and "Elseworld" stories.
Reviving the Multiverse: Infinite Crisis
Kal-L, Lois Lane-Kent, Superboy-Prime, and Alexander Luthor returned during Infinite Crisis. Unknown to Kal-L, Luthor's plan was to resurrect the pre-Crisis Multiverse. He wanted to mix and match elements from each reality to create a "perfect world". The fallout of the conflict brought the short-lived return of an Earth-Two copy and the deaths of Kal-L, Lois Lane-Kent and Luthor Jr. of Earth-Two. It is unclear what happened to the aged Diana Trevor, the Earth-Two Wonder Woman, though she faded from her ghostly existence. Inexplicably, Earth-Two was the only returning world that was devoid of most people, except the Justice Society, Kal-L, and his wife Lois Kent. This world was a copy, new and recently manufactured by Alexander Luthor, Jr. of pre-Crisis Earth-Three, instead of resurrected. This copy Earth-Two was recombined with the primary Earth to form the primary DC reality termed as "New Earth".
At the end of the Infinite Crisis limited series, the realigned world is called "New Earth". In the final issue of the 52 weekly series, it is revealed that fifty-two duplicate worlds have been created and all but New Earth have been altered from the original incarnation. The post-Crisis Earth-2 made its first appearance in a single panel of 52 Week 52 where it resembled the pre-Crisis Earth-Two, where a newspaper article says that this world's Superman and Power Girl are missing. The Flashes of New Earth (Jay Garrick and Wally West) briefly glimpsed this world with Robin and Huntress in action (during their travel with the Cosmic Treadmill as shown in Justice Society (vol. 3) #11) and Monarch selected Jay Garrick of this Earth (amongst others) in a Multiversal arena tournament. Based on comments by 52 co-writer Grant Morrison, this alternate universe is not the pre-Crisis Earth-Two.
This separation between the pre-Crisis Earth-Two and post-Crisis Earth-2 is formally established in Justice Society of America Annual #1 (2008), with a story titled "Earth 2 Chapter One: Golden Age", in which the New Earth Power Girl arrives on post-Crisis Earth-2. Thinking that she has returned home to her long destroyed pre-Crisis Earth-Two. Power Girl crash lands and unconscious, on the closest parallel of the 52 Multiverse, the post-Crisis Earth-2, which appears similar to the pre-Crisis Earth-Two. She is found by the post-Crisis Earth-2 Huntress, who thinks she is her long-missing best friend, the Power Girl native to this world. In this new reality, the Justice Society of America has merged with Infinity, Inc. and is now known as Justice Society Infinity. Initially, Power Girl believes she has returned home, until the missing post-Crisis Earth-2 Power Girl reappears and declares that the other Power Girl is an impostor, and has caused the disappearance of the post-Crisis Earth-2 Superman. This turn of events results in the post-Crisis Earth-2 Power Girl and the Justice Society Infinity to go after the New Earth Power Girl.
The Power Girl of New Earth recruits the post-Crisis Earth-2 Michael Holt, who is a physics professor and father and has never become a costumed hero, to help her return to her source Earth. Holt constructs a device similar to the Cosmic treadmill used by Barry Allen to open a portal to New Earth. The Power Girl of New Earth returns home, followed by the Justice Society Infinity, who kidnap her and take her back to post-Crisis Earth-2. During the confrontation, Green Lantern and Jade are initially confused when they see each other, as the post-Crisis Earth-2 Jade's father, Alan Scott, is dead, and New Earth's Jade is dead as well. The JSI interrogate Power Girl for information on the post-Crisis Earth-2 Superman's whereabouts. The post-Crisis Earth-2 Power Girl assumes that the Superman the New Earth Power Girl said was dead was the post-Crisis Earth-2 Superman (rather than Kal-L who was killed by Superboy-Prime) and that the New Earth Power Girl had killed him. The Justice Society of New Earth arrives to stop her torture. Starman reveals that the re-creation of the Multiverse led to the creation of a Power Girl and Superman native to this new universe, post-Crisis Earth-2 and that the post-Crisis Earth-2 Superman is still alive. The Power Girl of New Earth then returns home along with her Justice Society but with no apology from her counterpart nor from the post-Crisis Earth-2 Huntress for their actions against her.
Earth 2 in The New 52
Cover of Earth 2 #1 (July 2012).
Art by Ivan Reis, Joe Prado and Rod Reis
|No. of issues|
In September 2011, The New 52 rebooted DC's continuity. In this new timeline, the Earth-2 concept has been revived and is covered in two series; Worlds' Finest, which focuses on the adventures of the Huntress and Power Girl on New Earth written by Paul Levitz, and Earth 2, originally written by James Robinson and then by Tom Taylor, which features the formation of the Justice Society. James Robinson, the original writer of Earth 2, describes the new Earth 2 as a complete reboot of the concept, with superheroes only just now appearing, similar to the "young hero" concept for the New 52 continuity, and with revamped costume designs.
In Earth 2, Superman, Batman, and Wonder Woman seemingly gave their lives in order to repel the Apokoliptan invasion, leaving behind a world with no heroes. Supergirl and Robin (Helena Wayne) end up stranded in the mainstream universe towards the end of the invasion. When the Earth-2 Solomon Grundy threatens the world, three new heroes team up to defeat him: the Flash (Jay Garrick), Hawkgirl (Kendra Saunders), and Green Lantern (Alan Scott). In later issues, Mister Terrific (Michael Holt) from the mainstream universe joins the team. Other heroes who have made appearances include Dr. Fate (Khalid Ben-Hassin), the Atom (Al Pratt, now nuclear-powered), the Sandman (Wesley Dodds), Mister Miracle, and Big Barda. Villains include Solomon Grundy, a now-villainous Terry Sloan, Wotan, Steppenwolf and what was thought to be a surviving, Darkseid-brainwashed Superman, which turned out to be a very powerful but genetically unstable Bizarro-type clone. Writer James Robinson left the series with issue #16 and Tom Taylor became the new writer at #17. Other new characters introduced as the series progresses include a female Red Tornado (with the consciousness of Lois Lane), a hyper-intelligent knowledge-assimilator known as Accountable (Jimmy Olsen), a new Batman (Thomas Wayne using Miraclo), a new version of Aquawoman (Marella), and a new Superman (Val-Zod, a Kryptonian and a childhood friend of Power Girl's who had been imprisoned by Terry Sloan).
Towards the end of the series, Darkseid launches a second invasion of Earth, which is depicted in both Earth 2 and the weekly series Earth 2: World's End. Another weekly series, The New 52: Futures End, depicts a possible future in which refugees from a destroyed Earth 2 come to Earth 0 and prompt society to fracture. Over the course of the series, several new characters are introduced, such as Yolanda Montez, an Avatar of the Red who is a counterpart of Alan Scott; a second Red Arrow, an Earth 2 equivalent of Oliver Queen; and Dick Grayson, a journalist who goes on a mission to find his son after his wife Barbara Gordon is killed during the invasion. Others change alignment; Wonder Woman and Steppenwolf's daughter Fury sides with Mister Miracle and the other heroes after Big Barda reveals her loyalty to Darkseid. Huntress and Power Girl return to Earth 2 as well to take part in a mad scramble to save the Earth and then later, to save its people along with a computerised record of human culture and life on Earth created by Bruce Wayne. In Earth 2: World's End #11, it is revealed that Highfather made a deal with Darkseid that he would not interfere with Darkseid's plans for conquest so long as Darkseid only preyed upon one Earth of the Multiverse, which was Earth 2, explaining the recurrent tragedies faced by this world in comparison to others. In the end, Darkseid is successful, and the Earth is destroyed, and attempts to take Earth 2's refugees to Earth 0 are prevented by a time travelling Tim Drake in Futures End. Just as the world ends, several of the Wonders are sent to the planet Telos by Brainiac, where they confront their counterparts from various parallel worlds, both present and extinct, in the Convergence miniseries. Over the course of the series, Batman dies and Dick Grayson, inspired by his Batman counterparts from other worlds, takes up the mantle from Thomas Wayne. Ultimately, the planet Telos is terraformed into a new Earth-like planet and sent to the Earth 2 dimension as a new home for its refugees. The heroes' fraught attempts at forming a new society, rapidly augmented by Terry Sloan's technology, is depicted in the follow-on series Earth 2: Society (August 2015 – March 2017). The final arc of the series recreates Earth 2 again making it appear similar to their universe's first Earth through use of an Amazon artifact known as Pandora's Casket by Ultra-Humanite. This Earth has had no history of Wonders with Ultra-Humanite controlling the world behind the scenes. Following Ultra-Humanite's defeat, the Wonders becomes the world's new defenders and hopes that this Earth is the Earth they can protect.
A number of characters, heroes and villains, had counterparts on both Earth-One and Two. Generally speaking, the older Earth-Two versions were phased out or incorporated into their younger, Earth-One versions following Crisis on Infinite Earths. Several others were rebooted almost entirely, with their new versions having nothing in common with the old ones. For instance, Jim Corrigan of Earth-Two was a murdered police detective who served as the human host for the Spectre, while his Earth-One counterpart was a Metropolis police officer who often assisted Daily Planet cub reporter Jimmy Olsen and superhero Black Lightning. Many characters would often travel from one Earth to the other and interact with its natives or even immigrate. For example, Larry Jordan, the first Air Wave and native of Earth-Two, traveled to Earth-One under yet-unexplained circumstances, married Helen (the second Air Wave) and raised a son, Hal (the third Air Wave).
The history of Earth-Two is slightly different from both real world history and the history of other DC continuities. For example, in classic Earth-Two stories, by the 1970s, Quebec is shown to be an independent nation autonomous from Canada. South Africa abolished apartheid sooner than in the real world. Unlike other DCU depictions of Atlantis, the Atlantean countries of Poseidonis and Tritonis were ruled by a queen, not a king (along with its inhabitants displaying surface dweller features and no capacity for underwater survival, as the Atlantis continent had been raised).
In addition, masked crimefighters are introduced decades earlier than in other universes later identified within DC Comics, and these participated in such historic conflicts as World War II. Franklin Delano Roosevelt founded both the Justice Society of America and the All-Star Squadron. Other events taking place decades earlier include the destruction of Krypton and the advent of advanced technology such as interstellar transportation and time travel.
Thousands of years ago, the Guardians of Earth-One's Universe expelled the vast majority of magic from their universe, sending it to Earth-Two. This resulted in a predominance of magic and a weakening of scientific laws within Earth-Two's universe.
Because Earth-Two as presented didn't match up with the actual comics of DC's Golden Age other alternative Earths were used to explain the discrepancies.
Earth-Two-A (also known as Alternate Earth-Two) was where Clark Kent worked for the Daily Planet under editor Parry White in the 1940s and 1950s (on regular Earth-Two Kent worked for the Daily Star, his editor was George Taylor, and Perry White was a reporter).
Earth-Two-B (aka Earth-Forty-Six) is a world referenced but not described in the Crisis On Infinite Earths: Absolute Edition.
Earth-E (Earth-216) is the world where the Super-Sons adventures happened and was used to explain 1950s Batman and Superman stories that didn't fit with either Earth-One or Earth-Two history. Mark Gruenwald assigned it to the 1951–1960 period of those books.
In other media
- The season 3 episode "Tempus Anyone?" in Lois & Clark: The New Adventures of Superman, time traveler and author H.G. Wells takes the Lois Lane from Earth-One to a parallel universe Metropolis where there is a Clark Kent, but no Superman. Here, she inspires him to become the Man of Steel to that world. She also runs into familiar faces in unfamiliar roles: Jimmy Olsen is now James Olsen, owner of the Daily Planet; Perry White is running for Mayor; Clark Kent is engaged to High School sweetheart Lana Lang (who is keeping him from using his powers); she also realizes that the Lois Lane of that world died a few years earlier when she came upon her tombstone. Needless to say, by the end of the episode, Earth-Two Clark Kent embraces his destiny as Superman, but loses his identity as Clark. Earth-Two Clark later arrives in Earth-One during the season 4 episode "Lois and Clarks". This occurs after another encounter with Tempus that has the Earth-One Man of Tomorrow locked away in a moment of time that threatens to erase him from existence.
- The Earth-Two of the Smallville series is the home of Ultraman.
- Another version of Earth-Two is featured in season 2 of The Flash, but it is more of an analogue of Earth-3. While possessing similarities to the 'Prime' Earth, this Earth-Two has several marked differences. The architecture, clothing fashions and entertainments are mixtures of contemporary 21st century and 1940s styles, and certain areas of science and technology are far more advanced than on Earth-One. In addition, people in this Earth-Two are typically opposite in personality and circumstances than their Earth-One doppelgangers. For instance, Caitlin Snow on Earth-One doesn't possess the metahuman gene and is a kind, soft-spoken person, whereas her Earth-Two counterpart is an amoral criminal named Killer Frost who has ice-generating powers. Iris West Allen is not a reporter on this world; instead, she is a police detective whose father (a cop on Earth-One) is a nightclub singer. (This aspect is similar to that depicted on the Earth shown in JLA: Earth 2.) The two earths are originally connected through a wormhole created by Eobard Thawne/"Harrison Wells" (the Prime Earth Reverse-Flash) in the season 1 finale, demonstrated by the appearance of the Earth-Two Flash's helmet. When the singularity is finally collapsed, the explosion causes 52 breaches throughout Central City that allow passage between the two worlds, but only by speedsters or through tehnological means. Doppelgangers from Earth-Two begin appearing on Earth-One, being forcibly brought by Zoom, a criminal speedster. Zoom directs these metahumans to kill the Earth-One Flash or be stranded on Earth-One forever. Jay Garrick and the Harrison Wells of Earth-Two arrive separately to help Team Flash with the criminal metahumans and to defeat Zoom. Over time, Wells and Barry discover a way to close off the breaches permanently, and Barry and Cisco travel to Earth-Two to help rescue Wells' daughter Jessie from Zoom (who was holding her prisoner to blackmail Wells to betray the Flash and steal his speed for Zoom). The final breach to Earth-Two beneath S.T.A.R. labs is then closed, cutting off access to both worlds, but not before Jay Garrick is seemingly killed by Zoom and his body drawn back through the portal. Barry later announces to Team Flash that they are not done with Earth-Two; they will find a way back there, avenge Jay's death, and stop Zoom for good. Later, when Jay is shown to actually be Zoom (his real name being Hunter Zolomon), Barry rededicates himself to returning to Earth-Two and defeating Zoom. After they reopen a breach, Zoom returns and kills Barry's father before setting up a doomsday machine that could set off a chain reaction that destroys the multiverse. Barry stops it, defeats Zoom, and rescues a man Zoom had kept in a glass prison all season, who is revealed to be Jay Garrick, the Flash of Earth-3, showing the show may be swapping Earth-2 and Earth-3 from the comics. During season 3, Savitar attacks Earth Two S.T.A.R. Labs and captures Earth One Iris West.
- Earth-Two of The Flash is referred to in the Supergirl crossover episode, "Worlds Finest". As Barry is explaining the multiverse to Kara and her friends, Winn asks about a possible Earth "where all of us are evil". Barry replies "Been there. It sucks", referring to the Earth-Two he has visited ("Welcome to Earth-2/Escape from Earth-2").
- An Earth 2 skin pack was released as downloadable content for Injustice: Gods Among Us. It included alternate skins for the Flash, Hawkgirl, and Solomon Grundy based on the appearances of Jay Garrick, Kendra Saunders and Grundy in New 52.
- A pre-order skin pack for Batman: Arkham Origins video game includes two Earth 2 skins for Batman, both based on the New 52. One depicts the original Batman Bruce Wayne and the other depicting the new black-and-red Batman Thomas Wayne.
- Fox, Gardner (w), Infantino, Carmine (p), Giella, Joe (i). "Flash of Two Worlds!" The Flash 123 (September 1961)
- O'Neil, Denny (w), Dillin, Dick (p), Greene, Sid (i). "Star Light, Star Bright—Death Star I See Tonight" Justice League of America 73 (August 1969)
- Manning, Matthew K.; Dolan, Hannah, ed. (2010). "1980s". DC Comics Year By Year A Visual Chronicle. London, United Kingdom: Dorling Kindersley. p. 203. ISBN 978-0-7566-6742-9.
The children of the original Justice Society of America made their smash debut in this issue by writer Roy Thomas and penciler Jerry Ordway...All-Star Squadron #25 marked the first appearances of future cult-favorite heroes Jade, Obsidian, Fury, Brainwave Jr., the Silver Scarab, Northwind, and Nuklon.
- Manning "1980s" in Dolan, p. 207: "Written by DC's Golden Age guru Roy Thomas and drawn by Jerry Ordway, Infinity, Inc. was released in DC's new deluxe format on bright Baxter paper."
- Johns, Geoff; Jimenez, Phil (2006). Infinite Crisis. p. 264. ISBN 1401209599.
- Johns, Geoff; Morrison, Grant; Rucka, Greg; Waid, Mark (w), Giffen, Keith; Barrows, Eddy; Batista, Chris; Justiniano; McKone, Mike; Olliffe, Patrick; Robertson, Darick (p), Geraci, Drew; Lanning, Andy; Ramos, Rodney; Robertson, Darick; Wong, Walden (i). "A Year in the Life" 52 52 (May 2, 2007)
- Brady, Matt (May 8, 2007). "The 52 Exit Interviews: Grant Morrison". Newsarama. Archived from the original on October 11, 2007. Retrieved May 12, 2007.
- Rogers, Vaneta (June 23, 2008). "Jerry Ordway – Traveling Back to DC's Earth 2". Newsarama. Archived from the original on July 28, 2013.
- Johns, Geoff (w), Ordway, Jerry (p), Wiacek, Bob (i). "Earth 2, Chapter One: Golden Age" Justice Society of America Annual 1 (September 2008)
- Johns, Geoff; Ross, Alex (w), Eaglesham, Dale; Ordway, Jerry (p), Gray, Mick; Justice, Kris; Massengill, Nathan; Ordway, Jerry (i). "One World, under Gog, Part III: War Lords" Justice Society of America v3, 18 (October 2008)
- Johns, Geoff; Ross, Alex (w), Eaglesham, Dale; Ordway, Jerry (p), Massengill, Nathan; Ordway, Jerry (i). "One World, Under Gog, Part IV: Out of Place" Justice Society of America v3, 19 (November 2008)
- Johns, Geoff; Ross, Alex (w), Eaglesham, Dale; Ordway, Jerry (p), Massengill, Nathan; Wiacek, Bob (i). "Earth Bound" Justice Society of America v3, 20 (December 2008)
- Earth 2 at the Grand Comics Database
- Kushins, Josh (January 12, 2012). "DC Comics in 2012–-Introducing the "Second Wave" of DC Comics The New 52". The Source. DC Comics. Archived from the original on January 14, 2012. Retrieved January 14, 2012.
- Rogers, Vaneta (March 5, 2012). "James Robinson Describes the New 52's Earth 2". Newsarama. Archived from the original on July 28, 2013.
- Robinson, James (w), Scott, Nicola (p), Scott, Trevor (i). "The Price of Victory" Earth 2 1 (July 2012)
- Levitz, Paul (w), Pérez, George; Maguire, Kevin (p), Koblish, Scott (i). "Rebirth" Worlds' Finest 1 (July 2012)
- Moore, Matt (June 1, 2012). "Green Lantern relaunched as brave, mighty and gay". Yahoo! News. Archived from the original on November 16, 2012.
- Gerding, Stephen (May 17, 2013). "James Robinson Exits Earth 2, Leaves DC Comics". Comic Book Resources. Archived from the original on July 29, 2013. Retrieved July 28, 2013.
- Earth 2: Society at the Grand Comics Database
- Rozakis, Bob (w), Saviuk, Alex (p), Colletta, Vince (i). "Whatever Happened to the Original Air Wave?" DC Comics Presents 40 (December 1981)
- The Official Crisis on Infinite Earths Index (March 1986)
- Mark Gruenwald "In Search of the Super-Sons Tangent" Omniverse #1, 1977
- Corriea, Alexa Ray (August 7, 2013). "Batman: Arkham Origins skin pack adds alternate timeline costumes". Polygon. Vox Media. Archived from the original on August 7, 2013. Retrieved August 7, 2013.
- Begley, Chris (September 26, 2013). "Batman: Arkham Origins season pass announced, new DLC and skins revealed". Batman-News.com. Archived from the original on June 6, 2014. Retrieved October 1, 2013.