Sequence of Events Issue (Date)
20,000 Years Ago: The Guardians of the Universe are drawn to the Mars, where a savage, burning race threatens to soon bring chaos to the universe. The Guardians modify the Martians' genetic makeup so that they can no longer burn or asexually reproduce. They are engineered with a weakness to flame and the green and white Martian races are born. Before this, one rogue Martian reaches Earth and slaughters thousands of people. Vandal Savage's people call it Dakath, the Burning. After several months, Savage succeeds in slaughtering it. He locks Dakath's skull in another dimension. Justice League America #84-87 (Oct.–Nov. 2003)
Starro, the Conqueror begins life as a boy named Cobi, of Hatorei. His peoples' shared psychic link leads to their enslavement by Star parasites. As the Starro motherstar dies, it hatches new queens, and Cobi's brother, Andrez, plots to kill them. The remaining queen possesses Cobi, who then kills his brother. Enraged, Cobi tears the star from his face and absorbs the psychic essence of his race. The backlash overwhelms the star queen, who attaches to Cobi's chest and is enslaved by him. Their combined psychic powers allow them to enslave whole galaxies with spores. NOTES: Timeframe is unknown. Starro's spores first appeared in Brave and Bold #28 (1960). Starro (Cobi) first appeared in R.E.B.E.L.S. v.2 #5 (2009). R.E.B.E.L.S. v2 Annual #1 (2010)
THE OBSIDIAN AGE OF ATLANTIS: 1000 BCE
1043 BCE: Because of superstition, the blond-haired child, Gamemnae is expelled from underwater Atlantis. 1020 BCE: Gamemnae returns to Atlantis as a great sorceress. She raises the city above the water and becomes its ruler. This act binds her soul to the continent and gives her godlike powers. The bond cannot be broken unless the continent itself is destroyed. NOTE: Follow the 21st century events here. Justice League America #75 (Jan. 2003)
The statesman, Rama Khan travels from Jarhanpur to Atlantis. He is ensnared by Gamemnae, and the pair leads the nation to greatness. This is Atlantis' "Obsidian Age." Justice League America #70 (Late Dec. 2002)
1015 BCE: As part of a magical contingency plan, all of 21st Century Atlantis is shunted 3,000 years into the past. They find it has been raised above sea level and many suffocate. Aquaman leads the survivors to the water. He is soon trapped in aqueous form in a magical pool by Gamemnae. The Atlanteans are enslaved beneath the water. JLA: Our Worlds at War #1 (2001), Justice League America #72 (Late Nov. 2002)
1004 BCE: Rama Khan and Gamemnae recruit heroes from across the globe (and rival societies) to form a multicultural League of Ancients: the Annointed One, Manitou Raven, Sela, Tezumak and the Whaler). This is Atlantis' "Obsidian Age." Justice League America #70 (L10. 2002), JLA/JSA Secret Files (Jan. 2003)
In response to a dire prophecy by Gamemnae, Manitou Raven and Tezumak travel to the 21st century to destroy the JLA. Justice League America #66 (July 2002)
1000 BCE: The JLA cast a spell and arrive in Atlantis to find Aquaman. Justice League America #68 (Sept. 2002)
Part 2: Raven and Tezumak return from the future. They alert the Ancients that the JLA have arrived as well. The JLA discover Aquaman's essence, trapped in a pool. Justice League America #70 (L10. 2002)
Part 4: The JLA locate Mera and the remains of 21st century Atlantis. She explains how Atlantis' fabled "Chronicles" had been altered to reflect a golden era of peace. This is what misled Aquaman to lead them to this time period. Justice League America #72 (Late Nov. 2002)
Part 6: The JLA are slain by the Ancients, but Green Lantern's bravery convinces Raven to switch sides. He uses GL's heart as a sacrifice in order to save the JLA's souls. Raven uses this power to cast a containment spell around Atlantis, effectively trapping Gamemnae. Justice League America #74 (Early Dec. 2002)
Part 7: The JLA's successors arrive with a plan: they free Aquaman from the pool. He then re-sinks Atlantis, breaking Gamemnae's soul-bond to the continent and nullifying her magicks. (This returns Aquaman to human form.) Raven and his wife, Dawn, sneak through the portal to the future along with the returning Atlanteans. Justice League America #75 (Jan. 2003)
Pre-Camelot: Madame Xanadu and her sister Morgaine Le Fey, witness the rise of man from the stone Age to the Iron Age. Morgaine beds Julius Caesar. The sisters meet a young Merlin, who prophecies the rise and fall of Camelot and Morgaine's own actions therein. Madame Xanadu #19-20 (Mar.–Apr. 2010)
June 10, 1916: Morpheus, the Lord of Dreams is imprisoned. His ruby passes through several hands, eventually becoming Doctor Destiny's "Materioptikon." Sandman v.2 #1 (Jan.89)

The Golden Age

» SEE ALSO: JSA Chronology

1939: Thanagarian agent Paran Katar arrives on Earth and, using the name Perry Carter, befriends Carter Hall (Hawkman). Paran Katar surreptitiously helps Carter develop his ninth metal (alternately, "nth metal") harness, which allows him to defy gravity. NOTES: Carter's use of the metal as Hawkman later inspires Paran to form the winged police of Thanagar. This Annual contains an essay on changing continuity by Mike Gold. Hawkworld Annual #1 (1991)
1940: The Justice Society of America (1st app.) forms: Atom, Doctor Fate, Flash, Green Lantern, Hawkman, Hourman, Sandman, Spectre. NOTE: in pre-Crisis continuity, this roster included Superman and Batman. All-Starm Comics #3 (Winter 1940)
December 6-7, 1941: More than a thousand American soldiers die at Pearl Harbor, Hawaii when the Japanese attack. America's heroes learn about the Japanese attack and President Franklin D. Roosevelt asks them to mobilize all costumed heroes—including the JSA—to form an All-Star Squadron. Degaton also launches an attack on San Francisco. All-Star Squadron #1 (Sept. 1981)
Petty crook Patrick "Eel" O'Brian gains the power to stretch his body and change his shape after being doused with acid. Renouncing his life of crime, he becomes Plastic Man. NOTES: The weight of current evidences suggests that Plastic Man is from the Golden Age, not Silver Age as amended by Zero Hour #0. Police was published by Quality Comics. His 1st DC app. was Plastic Man #1 (1966). Police Comics #1 (Aug. 1941)
June 30, 1941: By distributing year 2000 technology in 1941, T.O. Morrow attempts to conquer Earth. The JLA travel back in time to recollect the items, but are captured by the Spectre and a suspicious JSA. 1st app. Spider and Fly. DC 2000 #1 (2000)
July 1, 1941: The JSA are shown what future T.O. Morrow hopes to build. Finding it more horrific than the the JLA's future, they release the JLA and defeat Morrow. When the JLA return to the future, the JSA lose all memory of the event. DC 2000 #2 (2000)
Dec. 1941: President Roosevelt ponders the formation of an All-Star Squadron — the United States' super-battalion. Justice League of America #193 (Aug. 1981)
Dec. 1941: The United States declares war against Japan. Joining the war effort, many heroes band to form the All-Star Squadron to fight Axis forces. All-Star Squadron #1-67 (Sept.81-2. 1987)
1942: The JLA, JSA, and All-Star Squadron stop Per Degaton from conquering the world. When defeated, Per Degaton is sent back to 1947 and all participants lose knowledge of the event. NOTE: This team-up heavily involved the Crime Syndicate and Earth-Prime and so may not exist at all in post-Crisis continuity Justice League of America #207-209 (Oct.–Dec. 1982), All-Star Squadron #14-15 (Oct.–Dec. 1982)
World War II: Soldier Joseph Jones becomes General Glory. On a mission to destroy a secret Nazi installation, Glory parachutes over the Arctic Circle and plummets into the icy waters. Though he is rescued, he forgets the magic words to activate his power. Justice League America #48-50 (Mar.–May 1991)
Late October 1948: When the Seven Soldiers of Victory are betrayed by their comrade, the Spider, they are are scattered throughout time by the Nebula Man. The Crimson Avenger's partner Wing dies in defeating the Nebula Man. The Vigilante's partner Billy Gunn also dies, at the hands of the Spider. Justice League of America #100-102 (Aug.–Oct. 1972), Stars and S.T.R.I.P.E. #9 (Apr. 2000)
1951: The JSA is forced into retirement. Adventure #466 (Nov.–Dec. 1979)
1957: Upon the creation of the European Economic Community, member nations also establish the Dome, a supra-national police organization. The Dome's main operative, Doctor Mist, later forms the Global Guardians. NOTE: In post-Infinte Crisis continuity, many of the original Dome operatives did not debut until after Batman. The history of the Dome is uncertain. Infinity, Inc. #34 (Jan. 1987)
The Silver Age
35 Years Ago: Traumatized by the loss of his people, J'onn J'onzz is accidentally transported from Mars to Earth by Doctor Erdel. He soon adopts the identity of the deceased detective John Jones. He operates covertly for years, until other super-heroes debut. NOTE: Although the Martian Manhunter debuted in print prior to the Flash, his popularity wasn't sufficient to be generally considered the first Silver Age hero. Detective #225 (Nov. 1955)
As the planet Krypton explodes Jor-El and his wife Lara prepare their infant son, Kal-El, for an interstellar voyage. Kal-El's ship is launched into space moments before the planet's destruction, bound for Earth. NOTES: Post-Infinite Crisis Superman continuity is governed by Superman: Birthright maxi-series. This series took cues from both the "Smallville" television series, the Superman movie series, and the "Legion of Super-Heroes" cartoon series, all of which show a young Clark Kent gradually coming into his powers, but never taking the name "Superboy." In post-Infinite Crisis continuity, he is not Krypton's sole survivor. (Action #1, June 1938); (Superman: Birthright #1, Sept. 2003)
35 Years Ago: Kal-El's rocket lands in Smallville, where he is found and adopted by Jonathan and Martha Kent and given the name Clark Kent. The boy's powers develop gradually and do not fully manifest until he is almost 18 years old. NOTES: Superman's foster parents first appeared in Superman #1 (1939). Action #1 (June 1938) said only that he was found by "a passing motorist." Jonathan Kent was first named in Adventure #149 (1950), Martha Kent in Superboy #12 (1951). Superman Secret Files #1 described Superman as 35 years old. Superman v.1 #1 (Summer 1939), Man of Steel v.1 #1 (June 1986)
35 Years Ago: Bruce Wayne is born to Thomas and Martha Wayne. NOTE: Date based on Bruce Wayne's age (25) in the "Batman: Year One" story. Batman #404 (Feb. 1987)
35 Years Ago: Queen Atlanna of Atlantis gives birth to Orin, whose lineage enables him to communicate with sea creatures. Aquaman Secret Files #1
35 Years Ago: Ray Palmer is born. DCU Heroes Secret Files #1
31 Years Ago: Dinah Laurel Lance is born to Dinah Drake and Larry Lance. Dinah's "canary cry" does not appear until she is an adolescent. NOTES: Date based on JLA: Year One #1, which says she was 19 at the JLA's formation. This contradicts Starman Annual #2, which says Dinah was born a year before David Knight (35 years ago). Dinah's pre-Crisis origin was told in Justice League of America #220, the post-Crisis version in Secret Origins #50. Justice League of America #220 (Nov. 1983), Secret Origins #50 (Aug. 1990), Justice League: Year One #1 (Jan. 1998)
30 Years Ago: J'onn J'onzz adopts the identity of the Bronze Wraith and fights crime alongside the Justice Experience. Chase #6 (July 1998)
30 Years Ago: John Zatara meets Sindella of the Homo magi race in Turkey. They relocate to America and their daughter, Zatanna, is born within a year. Several months later, Sindella fakes her death in a car crash to spare Zatanna from being captured by the Homo magi. Justice League of America #164 (Mar. 1979), DCU Heroes Secret Files #1
25 Years Ago: All members of the Justice Experience are killed by their foe, Doctor Trap. The Justice Society rescues J'onn (the Bronze Wraith) from the same fate and capture Doctor Trap. Martian Manhunter #17 (Apr. 2000)
25 Years Ago: Gotham City socialites Thomas and Martha Wayne are murdered by a mugger, leaving their nine-year-old son Bruce an orphan. Batman Secret Files #1 (Nov. 1997)
25 Years Ago: Framed for treason and facing a death sentence, USAF Captain Nathaniel Adam volunteers for a dangerous scientific experiment and is apparently vaporized. He reappears 20 years later. (Captain Atom #1, Mar. 1987)
PRE-CRISIS: Princess Diana rescues a young girl named Donna Hinckley from a fire and decides to make the girl her legal ward, raising her on Paradise Island and arranging for her to be imbued with the powers of the Amazons. POST-CRISIS: Donna is one of a dozen children from around the galaxy rescued and empowered by the Titans of Myth, although her memories of her upbringing are later hidden by a layer of false memory. NOTES: Wonder Girl was originally the teenage version of the Earth-One Wonder Woman herself, first seen in Wonder Woman v.1 #30 (1948). Some "Impossible Tales" in the early '60s showed Wonder Woman, Wonder Girl, and Wonder Tot (Wonder Woman's preadolescent self) coexisting at the same time. Wonder Girl did not get a distinct origin until Teen Titans v.1 #22 (when she first took the name Donna Troy) and her real origin was told in New Teen Titans #38. Her post-Crisis origin was told in The New Titans #50–54. (Teen Titans #22, July-Aug. 1969), (New Teen Titans #38, Jan. 1984), (New Titans #51, Jan. 1989)
21 Years ago: The African nation of M'Changa achieves independence, led by Reverend Richard Jiwe, who is elected President. The day after elections, his half-brother, General Mustapha Maksai, stages a coup assassinates Jiwe. Jiwe's daughter disappears and is presumed dead. In truth, she survives and takes the name Mari McCabe. (Justice League of America #234)
17 Years Ago: Bruce Wayne begins a world-wide odyssey to develop the skills he will need to fight crime. Batman Secret Files #1 (Nov. 1997)
17 Years Ago: At different times, Ted Grant (Wildcat) trains Dinah Lance and Bruce Wayne and in the pugilistic arts. Secret Origins #50 (Aug. 1990), Justice League America #31 (June 1999)
16 Years Ago: 15-year-old Dinah Laurel Lance succeeds her mother as Black Canary II and invstigates a poll-fixing scandal. NOTE: First chronological appearance; she does yet possess her "canary cry." Black Canary v.2 #1 (Jan. 1993)
14 years ago: Oliver Queen refuses a request for money from Anton Allegro, who vows revenge. Later, as Green Arrow, he foils Allegro's bank robbery and causes his deafness. NOTE: Six years before the Justice League of America #163. Justice League of America #163
14 Years Ago: On the planet Thanagar, the evil Byth plans the downfall of his enemy, Paran Katar. Paran's son, Katar Hol saves the life of a very special girl (Shayera Thal II). This girl is the illegitimate daughter of Shayera Thal (I). NOTE: Placement in continuity is based on Hol's 10-year exile. The little girl is later revealed to be the first Shayera's illegitimate daughter. Hawkworld v.1 #1 (1989)
Shayera Thal is killed in an explosion. Byth tricks Katar Hol into killing his own father; Hol is subsequently arrested and imprisoned on the Isle of Chance. After this, Byth is promoted to Thanagar's highest post: Administrator of Protection. NOTE: After this, the young girl from issue #1 is rescued by her grandfather, who renames her Shayera Thal II. Hawkworld v.1 #2 (1989)
A young Arthur Curry meets Princess Diana of Themyscira. Aquaman Annual #1 (1995)
The New Age of Heroes
January 4: Bruce Wayne returns to Gotham City. 1st app. James Gordon and Selina Kyle. NOTES: The post-Crisis history of Batman developed gradually. As official stories such as Batman: Year One were told, the principal characters' histories changed retroactively. Batman's 1st historical app. was Detective Comics #27 (May 1939). Batman #404 (Feb. 1987)
Clark Kent interviews for a job at the Metropolis newspaper, The Daily Planet. He meets Jimmy Olsen and Lois Lane. When a terrorist robot opens fire on the Daily Planet building, Clark ducks out to don his costume and confront it. Superman: Birthright #4 (Dec. 2003)
The Daily Planet dubs Clark "Superman" and Clark is hired as a reporter. NOTE: Superman's 1st historical app. was Action Comics #1 (June 1938). The most complete Silver Age/Bronze Age (pre-Crisis) version of his origin is Action Comics #500 (1979). Superman's post-Crisis origin was originally told in Man of Steel #1–6 (1986), which Birthright mostly retconned.   Superman: Birthright #5 (Jan. 2004)
April: Bruce Wayne adopts the guise of Batman (Batman #405). First appearance of Harvey Dent. Batman #405 (Mar. 1987)
Superman meets Batman. Man of Steel v.1 #3 (1986)
Princess Diana of Themyscira wins a contest to become the Amazons' ambassador to the outside world. The media dubs her Wonder Woman. NOTE: In post-Infinite Crisis continuity, Wonder Woman debuted around the same time as the other Justice League founders. This retcons her post-Crisis origin, in which she debuted years later. Wonder Woman's first historical appearance was All-Star Comics #8 (1942). The Trinity mini-series asserts that she was active for some time before meeting Superman and Batman. *
When Ra's al Ghul uses Bizarro to transport a nuclear warhead, the bomb detonates near Paradise Island. This draws Wonder Woman into first contact with Superman. (#1) He takes her to meet Batman, who is also on the case. (#2) After she is forced to revive herself in a Lazarus Pit, they visit Diana on Themyscira. Batman encounters Aquaman for the first time, while in his submarine. (#3) NOTES: This series was the first to reverse post-Crisis continuity, reinstating Wonder Woman as a Silver Age hero. It's unclear whether writer Matt Wagner was told to make this change in anticipation of the Infinite Crisis. It keeps Bizarro's origin from Man of Steel #5 (1986) intact. It also depicts Robin, which is probably apocryphal, since most sources assert that Robin did not debut until the third year of Batman's career. 1st chronological app. of the Bana-Mighdall Amazon Artemis (III). Diana is already in possession of her invisible jet, described as "alien." This series did not bear the "Elseworlds" icon, which was discontinued around this time. Batman/Superman/Wonder Woman: Trinity (2003)
Central City police scientist Barry Allen gains super-speed. Inspired by his boyhood hero, the Flash, Barry becomes the Flash II. NOTE: Barry Allen's first appearance was the first Silver Age origin to make specific reference to a Golden Age counterpart (who was described as a comic book character). Showcase #4 (Sept. 1956)
The public debut of Aquaman; he meets the Flash and helps defeat the Trickster. NOTE: Aquaman's historical first appearance and Golden Age origin were in More Fun Comics #73 (1941). His modern origin was first told in Adventure Comics #260 (1959), which is generally considered his first Silver Age appearance. (Like Superman and Batman, Aquaman's adventures never ceased publication in the 1950s.) Aquaman: Time and Tide #1 (Dec. 1993)
Dying Green Lantern Abin Sur selects Coast City test pilot Hal Jordan as Green Lantern II. Showcase #22 (Sept./Oct. 1959)
PRE-CRISIS: Superman, Batman, Wonder Woman, the Flash, Aquaman, J'onn J'onzz, the Challengers of the Unknown, the Blackhawks, Plastic Man, and many other Earth-One heroes join forces to battle an invasion of White Martians led by Commander Blanx. NOTE: Commander Blanx's first actual appearance was in Justice League of America #71 (1969). Robin guest-stars. First chronological appearance of the Earth-One Plastic Man. This story isn't compatible with most versions of post-Crisis continuity, although it probably influenced Darwyn Cooke's DC: The New Frontier (2004). (Justice League of America #144, July 1977)
Socialite brat Oliver Queen is stranded on a desert island, where he hones his skill with the bow. After defeating drug smugglers, he is dubbed Green Arrow. NOTES: Green Arrow's historical first appearance was More Fun Comics #73 (1941), with his Golden Age origin in More Fun #89 (1943). His Silver Age origin was told in Adventure Comics #256 (1959), recapped and expanded in DC Super-Stars #17 (1977), retold again for post-Crisis continuity in Secret Origins v.2 #38 (1989), and expanded in Green Arrow: The Wonder Year #1-4 (1993). A text piece in Green Arrow v.2 #3 (1988) gives a rundown of the different early versions of his origin, which was retold yet again in Green Arrow: Year One. Green Arrow: Year One #1-6 (Sept.–Nov. 2007)
Aquaman meets Superman. Aquaman Annual #1 (1995)
Superman meets Green Lantern and the Flash. NOTE: This story also recaps Superman's post-Crisis first meetings with Batman, Aquaman, and the JLA. Superman: The Man of Steel Annual #4 (1995)
August 7: Selina Kyle becomes Catwoman. Batman #406 (Apr. 1987)
J'onn J'onzz goes public as the Martian Manhunter. Detective Comics #273 (Nov. 1959)
JLA: Year One
Aquaman, Batman, Black Canary, Flash, Green Lantern, Martian Manhunter, Superman and Wonder Woman defeat the alien Appellax creatures. This is Black Canary II's public debut. NOTES: The JLA's post-Crisis origin was retold in Secret Origins #32, substituting Black Canary for Wonder Woman and omitting Batman; Superman did not join thereafter. In post-Infinite Crisis continuity, the Big Three were added back into this origin in Justice League of America v.2 #0 and 52 #51 (2007). The latter story also confirmed Black Canary as an eighth founder. The JSA Sourcebook claims Canary's debut preceeded Flash and Green Lantern, which seems unlikely. Justice League of America #9 (Feb. 1962), Justice League of America #200 (Mar. 1982), Secret Origins v.2 #32 (Nov. 1988), 52 #51 (Apr. 2007)
After their battle with the Appellaxians, Superman meets Batman and Wonder Woman at the Batcave to discuss the JLA's viability. They join the other five, but their involvement is limited during the League's first year. This meeting establishes a yearly tradition between the three, in the League's interest. NOTES: This flashback reverses post-Crisis continuity, which purposely de-emphasized the Big Three's involvement in the early JLA. Justice League of America v.2 #0 (Sept. 2006)
An unknown eighth Appellaxian inhabits the body of Simor Carr and forms the criminal organization called Locus. Their aim is to prepare proper Terran climate and vessels for Appellaxian colonization. JLA: Year One #9 (Sept. 1998)
The eight heroes officially form an alliance following the cleanup of the Appellax creatures (but do not name the group). Locus steals the corpse of one of the creatures from the League's new base — a coastal cave in Happy Harbor, Rhode Island. NOTE: This issue retold the post-Crisis origin with only five founders. In post-Infinite Crisis continuity, there are eight. Justice League: Year One #1 (Jan. 1998)
Five of the eight charter members hold a press conference in Gotham City at the site of the JSA's former headquarters. There they adopt the name of the Justice League of America. Millionnaire Oliver Queen (Green Arrow) sends Simon Carr to offer the league the resources to set up their headquarters. Queen remains anonymous. Working with Locus, Vandal Savage sends Thorn, Eclipso, Solomon Grundy and Clayface after the JLA. Guest appearances: Metamorpho, Green Arrow, Batman, Challengers, Blackhawks, Jack Ryder, Green Lantern I and Wildcat. Notes: Historical first appearances: Vandal Savage Green Lantern, v.1 #10 (1943); Eclipso House of Secrets #61 (1963); Solomon Grundy All-American #61 (1944); Thorn Lois Lane #105 (Nov. 1970); Clayface Detective #298 (1961). Justice League: Year One #2 (Feb. 1998)
The League adopts the cave in Rhode Island as their Secret Sanctuary. It acts as a "Silica Macrochip," storing data. Secret Origins v.2 #46 (Dec. 1989)
The League begin to set up their headquarters in Rhode Island. They meet young inventor, Ted Kord (later Blue Beetle), who constructs their security system and they acquire singal devices from S.T.A.R. Labs. They meet Simon's nephew, "Snapper," who becomes their resident handyman. The JLA defeats the Killer Shark. Locus hires T.O. Morrow to help examine the Appellaxian corpse and engineer a host body. Justice League: Year One #3 (Mar. 1998)
Gardner Fox and Mike Sekowsky begin as writer and artist
The public debut of Aquaman; he meets the Flash and helps defeat the Trickster. NOTE: Aquaman's first historical appearance was More Fun Comics (1941). Silver Age app was. Adventure Comics #260 (1959) Aquaman: Time and Tide #1 (Dec. 1993)
Snapper Carr tips the Justice League of America on how to defeat Starro the Conqueror (1st apps. in print). NOTE: In pre-Crisis Snapper was designated an "honorary" member here. JLA: Year One does not portray him with that distinction. Brave and Bold #28 (Feb. 1960), Justice League Europe #26 (May 1991)
The Locus gathers some remains of the recently defeated Starro. The Brotherhood of Evil (The Brain, Mallah, Madame Rouge) deliver the Blue Beetle I to Locus for experimentation. The elder Black Canary hosts a birthday party for Wes Dodds (Sandman). The JSA attend, and Dinah, Sr. reveals her former affair with Starman. This news shatters Dinah, Jr.'s view of her idols. NOTE: The Brotherhood of Evil 1st appeared in Doom Patrol #86 (1964); their history is uncertain in the wake of the 2004 Doom Patrol "reboot." Justice League: Year One #4 (Apr. 1998)
The J.L.of A. is drawn to Alabama, where the Brotherhood of Evil are harvesting bodies for Locus. Guest appearance: Green Arrow. Justice League: Year One #5-6 (May–June 1998)
Having traveled back in time the J.L.I. witness the new J.L.of A. discussing the appointment of a chairperson. By consensus, the Flash is unofficially elected soon thereafter (alluded to in Justice League: Year One #9). NOTE: Over the years, almost every member of the original Justice League of America is depicted chairing a meeting. Only Flash and Zatanna are ever mentioned having being elected (Justice League of America #206). Justice League Quarterly #3 (Summer 1991)
In a matter of weeks, the new JLA encounter several opponents: the Invisible Destroyer, Gorilla Grodd and the Icicle and the Phantom Doom. Bruce Wayne meets Maxwell Lord IV at the Gotham City Exectutive's Club. NOTE: These stories remain untold in their entirety. Justice League: Year One #7 (July 1998)
Oliver Queen's ward Roy Harper becomes Green Arrow's crimefighting partner: Speedy. NOTE: Speedy's historical first appearance was More Fun Comics #73 (1941). The Golden Age version of his origin was told in More Fun Comics #89 (1943). A quite different Silver Age version followed in Adventure #262 (1959), retold for post-Crisis continuity in Secret Origins v.2. #38 (1989). The timeline from Zero Hour #0 indicates Speedy was the first of the kid sidekicks. (Adventure Comics #262, July 1959), (Secret Origins v.2 #38, Mar. 1989)
Superman aids in the defeat of Xotar, the Weapons Master, a man from 10,000 years in the future. Flash is depicted as chairman. NOTE: This tale is also referenced in Action #650 (Feb. 1990) and Superman: Man of Steel Annual #4 (1995) Brave and Bold #29 (Apr. 1960), Justice League: Year One #7 (July 1998)
Locus readies an army of host bodies engineered from the Appellaxians' remains. Green Arrow expresses interest in joining. Snapper discovers a hidden camera in the Sanctuary which leads the League to discover J'onn's secret files on them all. Justice League: Year One #8 (Aug. 1998)
Snapper discovers that his uncle is possessed by the eighth Appellaxian, their "Kalar" (leader). Locus attacks their former ally, Vandal Savage. The Leaguers' suspicions of J'onn lead to a devastating inferno. Justice League: Year One #9 (Sept. 1998)
Locus begins terraforming the planet for Appellaxian colonization. Snapper warns the JLA about the Kalar's plans and the Flash makes a move to restore trust within the League: he reveals his secret identity. The others follow suit. J'onn discovers that a mental neuroshock can cripple the Appellaxians. Justice League: Year One #10 (Oct. 1998)
The Kalar vacates Simon Carr for a newly-engineered host body. Using the intelligence stolen from the Martian Manhunter, the Kalar orders the capture of Earth's super-heroes, and places them in concentration camps. Simon Carr is freed from the alien possession. Justice League: Year One #11 (Oct. 1998)
Vandal Savage attempts to defeat both the Appellaxians and the heroes by seizing a mindwipe device. J'onn filters the device's energies through his own mind and subdues the aliens. Earth's heroes are freed and together, they send the Appellaxians back to their homeworld. The two Green Lanterns meet for the first time. Hawkman tells the JLA members that the Justice Society considers them worthy successors. NOTES: Includes the JSA, Blackhawks, Freedom Fighters and Global Guardians. The appearances in this story of the Seven Soldiers of Victory (not freed until Justice League of America #100), and Uncle Sam (who vanished shortly after World War II, explained in Spectre v.3 #38); their apps. should be considered apocryphal. Justice League: Year One #12 (Nov. 1998)
While cleaning up after an earthquake in Milan, Flash and Black Canary unleash the giant skeleton Yask and the fairy Liverstains. Liverstains helps them defeat Yask, but demands the Flash as payment—to eat. He gives up after being beaten by the Flash in a race and by Black Canary in a singing contest. JLA Showcase 80-Page Giant #1 (Feb. 2000)
Ralph Dibny downs the gingold elixir, becoming the Elongated Man. NOTE: His future wife Sue Dearborn first appears in Flash v.1 #119. Flash v.1 #112 (Apr.–May 1960)
The League battles with Amazo and his creator Professor Ivo. Brave and Bold #30 (June 1960), Justice League Quarterly #5 (Winter 1991)
Adam Strange vanquishes the Ulthoon, the Tornado Tyrant, whom he believes destroyed. Instead, the Tyrant begins to roam the universe. NOTE: Adam Strange 1st appeared in Showcase #17 (Dec.58) Mystery in Space #61 (Aug. 1960)
The League battles Despero of Kalanor. Justice League of America #1 (Oct. 1960), Justice League Task Force #31 (Feb. 1996)
The JLA calls on the magician Merlin to restore their powers and defeat three sorcerors from "Magic-Land" (Terra Arcana): Lord Saturna, Simon Magus and the Troll King. NOTES: These villains (and some from the next issue) resurface much later in Creature Commandos #1 (May 2000). Justice League of America #2 (Jan. 1961)
Adam Strange steps in to help defeat the alien Kanjar Ro, who is warring with Hyathis of Alstair, Kromm of Mosteel, and Sayvar of Llarr. Justice League of America #3 (Feb. 1961)
The Tornado Tyrant watches in the wings as Adam Strange and the JLA again defeat Kanjar Ro. The Tyrant is overcome by their heroism and repents, becoming the Tornado Champion. He leaves Rann in search of a world of his own. NOTE: This is a flashback story; the editor remarks: "Justice League readers ... will recall that The Flash proposed Adam Strange for membership in [Justice League of America #4]. The adventure you are reading occured before that membership meeting." Years hence, the Tornado Champion will come to rest in the android body of the Red Tornado, giving him sentience. Mystery in Space #75 (May 1962)
The Leaguers vote on the admission of Green Arrow. NOTES: This issue shows that the JLA have already battled Kanjar Ro. Justice League: Year One #12 (Nov. 1998)
Green Arrow joins. Flash proposes to offer Adam Strange membership as well. Justice League of America #4 (Apr. 1961)
Pre-Crisis only: Katar and Shayera Hol come to Earth from Thanagar as Hawkman and Hawkgirl. In current continuity, the Golden Age Hawks have assumed much of the Thanagarians' role. See Silver Age Hawkman Timeline Brave and Bold #34 (Feb.–Mar. 1961)
Doctor Destiny infiltrates the JLA by impersonating Green Lantern. Justice League of America #5 (July 1961)
1st app. Amos Fortune. NOTE: The cover of this issue reprises All-Star Comics #42. Justice League of America #6 (Sept. 1961)

First team-up between the two Flashes. NOTES: This is also the 1st reference to Earth-Two; its popularity prompted the return of the JSA. Showcase #34 followed with the JSA's first Silver Age appearance, and Flash #129 was their official reintroduction.

The Flash meets his Golden Age counterpart (Jay Garrick) for the first time. NOTES: The Golden Age Flash was said to exist on Earth-Two (seen but not named in this story), and was a comic book character on Barry Allen's Earth (later called Earth-One). In the post-Crisis version of this story (Secret Origins v.2 #50) Jay and Barry existed on the same Earth, but the Shade, the Fiddler, and the Thinker caused Jay's city to disappear into another vibrational plane for many years. The popularity of the original story led to the revival of the JSA, who were first mentioned in Flash #129 (1962) and returned in Flash #137 (1963).

Flash v.1 #123 (Sept. 1961), Secret Origins v.2 #50 (Aug. 1990)
The public debut of Atom II, Ray Palmer. Showcase #34 (Sept./Oct. 1961)
The Leaguers' significant others accompany them to the Happy Harbor circus, where pesky aliens make everything go haywire. Justice League of America #7 (Nov.61)
Versus small-time crooks! Justice League of America #8 (Jan. 1962)
Felix Faust takes the JLA away from their battle with the Lord of Time and uses them to free the demons Abnegezar, Rath and Ghast (the Demons Three). NOTE: Recalled post-Crisis by Ghast. Justice League of America #10 (Mar. 1962), Justice League Quarterly #15 (Summer 1994)
The JLA capture the Lord of Time in 3786. On their way back, they get trapped 100 years in the future by the Demons Three. Justice League of America #11 (May 1962)
1st app. of Doctor Light III. NOTE: The first Doctor Light was a golden age villain. The second was the third's short-lived partner. Justice League of America #12 (June 1962)
Versus robot duplicates! Justice League of America #13 (Aug. 1962)
The Atom II joins after saving the JLA from Amos Fortune, who had recruited Hector Hammond, Pied Piper, Sea-Thief, Angle Man, Doctor Davis and the Joker. Justice League of America #14 (Sept. 1962)
Versus giant stone men! Justice League of America #15 (Nov. 1962)
The JLA solve a hypothetical challenge posed by one of their fans. Justice League of America #16 (Dec. 1962)
The repentant Tornado Champion creates his own world with JLA duplicates. In observing the real JLA, he is able to overcome a new evil duplicate of himself. Justice League of America #17 (Feb. 1963)
The League attends a society function at Oliver Queen's mansion which is disrupted by the Packrat. Superman, Batman and Speedy help out. Queen succeeds in convincing Bruce Wayne to fund the JLA's activities. NOTE: It is suggested here that Green Arrow and the Atom had already joined. Legends of the DCU #12 (Jan. 1999)
Laurel, the Moon Maiden, joins. NOTES: Though Moon Maiden currently exists, her past was removed entirely from the timestream. The past in which she was a JLA member was overwritten and no longer exists. This tale describes her as an early member of the Justice League of America. JLA 80-Page Giant #3 (Oct. 2000)
The JLA is shrunk and battles androids! Justice League of America #18 (Mar. 1963)
Doctor Destiny creates evil duplicates of the JLA from their own dreams using his materioptikon. When the real JLA are brought to trial for the crimes, the Atom's girlfriend Jean Loring defends them in court. Justice League of America #19 (May 1963)
Versus Spaceman X! Justice League of America #20 (June 1963)
The two Flashes join forces to rescue the JSA — Atom, Doctor Mid-Nite, Green Lantern, Hawkman and Johnny Thunder — from Vandal Savage. The JSA re-forms. NOTES: 1st Silver Age app. of Vandal Savage, Johnny Thunder and the Earth-Two Wonder Woman. 1st actual Silver Age app. of the JSA (not in a flashback). Flash v.1 #137 (June 1963)
11 Years Ago
Aquaman, Green Arrow, and Speedy help defeat two of each other's foes. Adventure Comics #267 (Dec. 1959)
Wally West, nephew of Barry Allen's girlfriend Iris West, becomes Kid Flash. NOTE: Post-Crisis Flash continuity places his debut later than originally published. Wally's post-Crisis origin was retold and expanded in Flash v.2 #62–65 (1992). Flash v.1 #110 (Dec. 1959–Jan. 1960)
An outcast Atlantean boy named Garth becomes Aquaman's teen partner, Aqualad. Adventure Comics #269 (Feb. 1960)
JLA/JSA 1: The first team-up between the Justice League and the Justice Society. They battle the Crime Champions: Wizard, Icicle, Fiddler, Chronos, Felix Faust, Doctor Alchemy. NOTE: First Silver Age appearance of the original Hawkman, Black Canary, Hourman, Green Lantern, Doctor Fate and Atom. Justice League of America #21-22 (Aug.–Sept. 1963)
First appearance of the Queen Bee, Zazzala from the planet Korll. NOTE: According to the Sourcebook this Queen Bee is not the same woman who appears in the JLI stories. Justice League of America #23 (Nov. 1963)
Adam Strange helps to recapture Kanjar Ro. Justice League of America #24 (Dec. 1963)
Snapper Carr graduates high school after temporarily gaining the strange power to manifest his every wish. The Atom discovers that it was actually the work of a tiny alien who needs his help. NOTE: This makes Snapper now roughly 30 years old. Atom #4 (Dec. 1962–Jan. 1963)
Versus Kraad the Conqueror! NOTES: Kraad resurfaces in Creature Commandos #1 (2000). Justice League of America #2 (Feb. 1964)
Despero traps several members inside hourglasses housing other dimensions. Justice League of America #26 (Mar. 1964)
The JLA activates Amazo to defeat the I. Justice League of America #27 (May 1964)
Dick Grayson becomes Robin. NOTE: Robin's historical first appearance was Detective Comics #38 (1940), retold in Batman #213 (the definitive Earth-One version). Post-Crisis (and post-Zero Hour) Batman stories all confirm that Robin debuted during Batman's third year: Batman: Year Three (Batman #436-439, the definitive post-Crisis version), and Batman: Dark Victory #9-13 (which replaced Year Three post-Zero Hour). Pre-Crisis, Dick became Robin before the formation of the JLA, as shown in Justice League of America #144 (1977). Batman #213 (July/Aug. 1969); Batman #436–439 (Aug.–Sept. 1989); Batman: Dark Victory #9–13 (Aug.–Dec. 2000)
The JLA and Snapper Carr observe as Green Lantern battles a malevolent "protonic force." NOTE: The force first appeared in Green Lantern v.2 #24 (1963), in which Green Lantern met a sentient planet that called itself "Green Lantern"; it might have inspired (or be) the planet-Lantern, Mogo, from Green Lantern v.2 #188 (1985). Green Lantern v.2 #29 (June 1964)
The Headmaster Mind steals the Leaguers' powers then sends in Matter Master, Tattooed Man and the Top after them. Justice League of America #28 (June 1964)
JLA/JSA "1.5": Wotan manipulates the JLA and JSA into fighting against each other. In the wake of the battle, Hawkman and Hawkgirl (Carter and Shiera Hall) join the JLA as liaisons to the Justice Society. NOTES: The Golden Age Hawks' membership in the JLA was revealed in Hawkworld Annual #1; the circumstances were revealed in Incarnations #1. The JSA Sourcebook claims this is their first team-up, but a letter column in Incarnations later states that this tale was not necessarily their first encounter. JLA: Incarnations #1 (June 2001), Hawkworld Annual #1 (1991)
JLA/JSA 2: PRE-CRISIS ONLY: 1st app. the Crime Syndicate: Ultraman, Superwoman, Johnny Quick, Power Ring, Owl Man. NOTE: This event did not happen in post-Crisis continuity, as the Crime Syndicate do not appear until years later in JLA: Earth 2. Justice League of America #29-30 (Aug.–Sept. 1964), Justice League Quarterly #8 (Autumn 92)
1st app. of Zatanna, daughter of Zatara the magician. Hawkman v.1 #4 (Oct.–Nov. 1964)
PRE-CRISIS ONLY: Katar Hol (Hawkman) of Thanagar joins the JLA. Retcon: In post-Crisis continuity, the JSA's Carter Hall first joined the JLA as Hawkman. Katar Hol of Thanagar does not arrive on Earth until years later. Justice League of America #31 (Nov. 1964)
Aquaman marries Mera. The JLA and their teen partners attend the ceremony in Atlantis. NOTE: Brave and the Bold v.2 #10 depicts a behind-the-scenes story at this event. In it, the JLA proteges meet, but have not yet formed the Teen Titans. The JLA also appear in this story. Aquaman v.1 #18 (Nov.–Dec. 1964), Brave and the Bold v.2 #10 (Apr. 2008)
Versus Brain Storm! Justice League of America #32 (Dec. 1964)
1st app. of Rex Mason, Metamorpho. Brave and Bold #57 (Dec. 1964–Jan. 1965)
Versus the Alien-ator! Justice League of America #33 (Feb. 1965)
Doctor Destiny's uses his increasing power to mentally menace the Leaguers' dreams. Justice League of America #34 (Mar. 1965)
Robin, Kid Flash, and Aqualad team up to battle Mr. Twister. NOTE: Although this story is generally considered the first appearance of the Teen Titans, that name does not appear anywhere in the story (or cover). Brave and Bold #54 (July 1964), Teen Titans #53 (Feb. 1978)
Aqualad, Kid Flash, Robin, Speedy, and Wonder Girl save the JLA from the mental control of the Antithesis, which has caused the JLAers to turn evil. Afterwards, the five young heroes decide to form their own team: the Teen Titans. NOTES: Originally, Speedy was not a regular part of the group, first appearing with the Titans in Teen Titans #4 (1966) and not becoming a regular member until #19 (1969). The post-Crisis version of these events, which took place immediately after Brave and the Bold #54, was retold in Secret Origins v.2 Annual #3 (1989), which also explained that the Antithesis was the source of Mr. Twister's original powers. Teen Titans #53 (Feb. 1978)
The Demons Three use the Pied Piper, Killer Moth, and Doctor Polaris to attack the JLA. They are defeated when the JLA use the Demon's artifacts to reimprison them. Justice League of America #35 (May 1965)
Brain Storm returns to create duplicates of the JLA! NOTE: In this story, Flash draws a parallel between this case and that from All-Star Comics #27. Justice League of America #36 (June 1965)
JLA/JSA 3. Pre-Crisis only: Versus the Earth-One Johnny Thunder and his "Lawless League." It is unlikely that this event exists in post-Crisis continuity. Justice League of America #37-38 (Aug.–Sept. 1965)
1st app. Animal Man. NOTE: He did not appear in costume until Strange Adventures #190. Strange Adventures #180 (Sept. 1965)
NOTE: Contains all reprints: Brave and Bold #28 and 30, Justice League of America #5 and a Justice League of America #index. An 80-page giant. Justice League of America #39 (Nov. 1965)
A young boy inadvertently turns the whole world evil. Justice League of America #40 (Nov. 1965)
The Key tricks the JLA into disbanding. NOTE: This could be the same villain who menaced the JSA in All-Star Comics #57. Justice League of America #41 (Dec. 1965)
After an interview with Clark Kent and a battle against Goldface, the JLA offers membership to Metamorpho. He rejects it because he does not like being a "freak" and wishes to return to a normal life. The alien Unimaginable, desires JLA membership and seeks to better Metamorpho. When the JLA reject him, he kidnaps them into space. NOTE: This tale was embellished in Metamorpho: Year One #6. The Unimaginable returned in (the now out-of-continuity) Valor #6-7 (1993). The JLA also considered Elongated Man and Adam Strange for membership. Justice League of America #42 (Feb. 1966), Metamorpho: Year One #6 (Feb. 2008)
Amos Fortune creates the Royal Flush Gang (Amos is the Ace of Clubs). NOTE: The cover logo changes with this issue. Justice League of America #43 (Mar. 1966)
Metamorpho helps once again to vanquish the Unimaginable (posing as "Doctor Bendorion"). Justice League of America #44 (May 1966)
When the League are called to dispatch the android Shaggy Man, they create a duplicate Shaggy Man, bury them, and leave the two to battle endlessly. Justice League of America #45 (June 1966)
JLA/JSA 4. The alien Anti-Matter Man (from the anti-matter universe) incites Solomon Grundy and Blockbuster to attack the JLA and JSA respectively. He is booted back to his universe when the Atom forces the Spectre to explode. NOTE: This story foreshadows the Crisis — the Spectre literally holds Earths-One and -Two apart. Justice League of America #46-47 (Auyg.–Sept. 1966)
NOTE: Contains only reprints: Brave and Bold #29 and Justice League of America #2 and 3. An 80-page giant Justice League of America #48 (Nov.–Dec. 1966)
Felix Faust returns accidentally creates two duplicates of himself in a bid to escape prison. Justice League of America #49 (Nov. 1966)
Barry Allen marries Iris West. Flash v.1 #165 (Nov. 1966)
The JLA attend a mock funeral for Aquaman. Aquaman v.1 #30 (Nov.–Dec. 1966)
The Lord of Time returns. Justice League of America #50 (Dec. 1966)
Independent of Batman, Barbara Gordon debuts as Batgirl. NOTE: The Batgirl: Year One series erroneously notes that Larry Lance is dead, which doesn't happen until Justice League of America #74, but Batgirl aided the JLA in #60. According to the post-Crisis Batman titles, Batgirl actually debuted during the fourth year of Batman's career, about a year after Robin. Secret Origins #20 is Batgirl's post-Crisis origin while Batgirl: Year One is post-Zero Hour. Detective #359 (Jan. 1967), Secret Origins #20 (Nov. 1987), Batgirl: Year One #1-2 (Feb.–Mar. 2003)
Zatanna creates magical duplicates of several JLA heroes she has encountered (plus Elongated Man) in order to fight the evil elemental known as Allura and rescue her father, Zatara. Later, she tells the Justice Leaguers of her adventure. NOTE: First modern appearance of Zatara. The Warlock of Ys is mistakenly referred to as being from "Dis," which becomes important in Justice League of America #161. Justice League of America #51 (Feb. 1967)
Snapper Carr explains how individual members cannot participate in every JLA case because of the demands of their own crimefighting careers. Justice League of America #52 (Mar. 1967)
Versus a criminal mastermind! Justice League of America #53 (May 1967)
Amos Fortune and the Royal Flush Gang return. Justice League of America #54 (June 1967)
After helping defeat Fire-Eye the dinosaur, Superman reluctantly accepts membership in the JLA (in part because of prodding from Batman). NOTES: This was a post-Crisis tale of Superman's joining the League and probably did not happen in post-Infinite Crisis continuity. His joining was referenced in Silver Age Secret Files #1 and JLA Secret Files #3. JLA: Incarnations #2 (Aug. 2001)
Batman again steps in to lead the JLA against Gorilla Grodd. When Batman calls Superman on a blunder, the Man of Steel requests honorary status but suggests that Batman join in his stead. Both Superman and Batman finally agree to accept reserve membership. NOTES: This was a post-Crisis tale of Batman's joining the League and probably did not happen in post-Infinite Crisis continuity. Per Flash's comment, this story takes place soon after Flash and Superman's first race (Superman #199, 1967; Superman wins). Hawkman is chairman in this tale. JLA: Incarnations #2 (Aug. 2001)
THE SILVER AGE
When Agamemno helps him defeat his rivals, Kanjar Ro tells his where to find the JLA. Before going to Earth, Agamemno watches the League as the defeat Despero. NOTES: It's impossible to place the Silver Age event precisely within continuity. Many referenced events and characters occured or first appeared at disparate times. This tale is placed loosely in continuity. The tale with Despero is an "untold" one. Though Hawkman (Carter Hall) was a member of the JLA by this time, he does not appear in this mini-series. The Silver Age Secret Files (July 2000)
Agamemno convinces Luthor to form the Injustice League (with Black Manta, Catwoman, Chronos, Doctor Light, Felix Faust, Mister Element, Penguin and Sinestro) in a plot to take over the Earth. The villains switch bodies with those of the JLA. NOTE: Black Manta 1st appeared in Aquaman #35 (1967); Sinestro, Green Lantern #7 (1961); Mister Element, Showcase #13 (1958); Chronos Atom #3 (1962). The Silver Age #1 (July 2000)
The Injustice League reveals the Leaguers' true identities. One group steals the central power battery from Oa. Another recovers a piece of jewel kryptonite from the abandoned ship of Brainiac. On the ship they discover numerous shrunken cities (which they destroy). NOTE: Both History of the DC Universe #2 and this issue suggest that Brainiac was active in the DCU before he possessed the body of Milton Fine (Adventures of Superman #438, 1988). The Silver Age: JLA (July 2000)
On Thanagar, Green Lantern manages to reach the central power battery and switch the heroes' and villains' bodies back. NOTES: Andar Pul appears as a Wingman in this story, not yet Administrator of Thanagar (Hawkworld, v.2 #1). Pul is the father of the spy, Fel Andar (Hawkman II). Also contains a flashback to an untold battle with Sonar. The Silver Age: Green Lantern (July 2000)
Deadman coerces Adam Strange, Batgirl, Metamorpho, Blackhawk, Mento and a new Shining Knight II (Gardner Grayle) together as a sort of Silver Age Seven Soldiers of Victory. NOTES: The team never actually uses the SSoV name. Grayle eventually becomes the Atomic Knight. Mento's history is uncertain in the wake of the 2004 Doom Patrol "reboot"; his 1st app. was Doom Patrol #91 (1964); Deadman, Strange Adventures #205 (1967). CAMEO: Element Girl (1st app. Metamorpho #10, 1967). The Silver Age: Showcase (July 2000)
J'onn uses the H-E-R-O Dial to transform the JLAers and take the Injustice League by surprise. Green Lantern adds to the victory by enlisting the Wingmen of Thanagar (none of whom are named). The Silver Age 80-Page Giant (July 2000)
After witnessing the Injustice League's duplicity, Batman decides to begin compiling information on all major metahumans. From this data, he assembles protocols which can be used to disable or kill those people. Justice League America #46 (Oct. 2000)
The JLA attends the wedding of the Doom Patrol's Elasti-Girl and Mento. Doom Patrol v.1 #104 (June 1966)
JLA/JSA 5. Mysterious black spheres crash to Earth, transforming four people (How Chu, Gem Girl, Horace Rowland and Marty Baxter). Johnny Thunder discovers that laughter is the cure to the "negative" radiation. NOTE: The Robin of Earth-Two joined the JSA here in his first Silver Age app. Justice League of America #55-56 (Aug.–Sept. 1967)
Three Leaguers dedicate humanitarian hours to help Snapper write a paper for Brotherhood Week. Justice League of America #57 (Nov. 1967)
The JLA play spectators to the second race between Superman and the Flash. Flash v.1 #175 (Dec. 1967)
NOTE: Contains reprints only: Justice League of America #1 and 6. An 80-page giant. Justice League of America #58 (Nov./Dec. 1667)
Versus the Contras! Justice League of America #59 (Dec. 1967)
Batgirl helps the League against the Queen Bee. NOTE: The Atom reveals his secret identity to the rest of the League. Reprints a Captain Comet story from Strange Adventures #38. Justice League of America #60 (Feb. 1968)
Doctor Destiny unleashes a bevy of bad guys. Justice League of America #61 (Mar. 1968)
Hal Jordan learns that the Guardians also appointed an alternate Green Lantern for Space Sector 2814: Baltimore gym teacher Guy Gardner. NOTE: Hal's first actual meeting with Guy was shown in Secret Origins v.2. #7 (1986). Guy did not learn that he had been selected as an alternate until Green Lantern v.2 #116 (1979). Green Lantern v.2 #59 (Mar. 1968), Secret Origins v.2 #7 (Oct. 1986)
Versus Leo Locke and the Pyrotekniks! Justice League of America #62 (May 1968)
The Key returns. Justice League of America #63 (June 1968)
Versus Doctor Anomaly! Justice League of America #240 (July 1985)

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