Justice League

Overview
The Justice League were originally formed when an unknown alien being known as Starro arrived on Earth with the intent of conquering it. They quickly rose in popularity and have since become the most recognizable of teams. Each year the League votes on new members and the team has over 50 members.

Unofficial Formation: 2001 - 2003
In 2001, a group of alien beings named the Appellaxians invaded Earth. And with this, seven heroes answered the call. These heroes were Flash, Superman, Batman, Green Arrow, Wonder Woman, and Black Canary. From this they would form an alliance known at the time as the Super Friends. The Super Friends decided to have a meeting base inside Mount Justice know as Secret Sanctuary. This alliance was made so that whenever one of the members needed help, they could ask one of the other members for assistance. But in early 2003, the base was compromised by the then Red Hood, who used the team's unofficial mascot, Snapper Carr to find the base. Of course Batman was there to defeat the Red Hood but because he had found this base, the heroes decided to abandon the base. This marked the end of the Super Friends but later that year, they regrouped as something more.

The Beginning: 2003 - 2004
In 2003, the threat of Starro came to Earth. Batman would discover it by satellite, Superman found it while flying, and Green Lantern found it by a notification on his ring. Those three were the first ones to fight Starro. Later, Wonder Woman saw it on TV and went to the fight. Flash heard it from his then girlfriend Iris West and sped to the fight. Martian Manhunter then came to the fight. They defeated the alien and made a new alliance. One not hidden from the public, one that could inspire others to be better... they formed the Justice League. Batman would give them a new base in Metropolis. After this they extended membership to Green Arrow and Black Canary, giving them founding member status. In 2004, they expanded their forces to include Aquaman, Red Tornado, Green Lantern, and Captain Atom during a fight with Professor Ivo and Amazo that threatened the entire United States. They expanded because Amazo had their powers and needed to add people with different powers. They would defeat the professor and his creation.

Doom Arrives: 2005 - 2006
In 2005 the team expanded to include Atom, Captain Marvel, Black Lightning, Aquawoman, and Plastic Man. Shortly after the meeting Brainiac attempted to invade the Earth but the heroes were able to stop them. The next year, in 2006, they had to further expand their forces when the Legion of Doom was formed by Lex Luthor consisting of The Joker, Brainiac, Ocean Master, Black Manta, Black Adam, and Sinestro. Their new members included: Zatara, Adam Strange, Charles McNider, Booster Gold, and Blue Beetle. They would defeat the Legion but had no evidence on Lex Luthor to incarcerate him.

Doomsday: 2007
In early 2007, the team expanded to The Question, Vixen, Hawkman, Hawkwoman, and Icon. Then in March, the monster Doomsday arrived on Earth. While the League tried to stop it, they would be defeated. Superman would kill him but at the cost of his life. Later, after Superman was "resurrected" and stopped the Eradicator and Cyborg Superman, the hero Steel was inducted into the League.

The First Coming: 2008
In 2008, Steppenwolf came to Earth. The League further expanded their forces to: Doctor Fate, Firestorm, Star Sapphire, and Green Lantern. The army of Parademons would be spread around the world. But the epicenter of the army was at Chernobyl in Russia. Cyborg helped find out Steppenwolf's plan. The League forbade the Teen Titans to be involved in the battle deeming them not ready. The League would rally at Chernobyl and defeated Steppenwolf and his Parademons. After this, Cyborg was made a member and they would move into the Watchtower using the Hall as a front. Soon after the battle, the League gave some Teen Titans member a look into the Hall. They thought that it meant the League recognized them for the heroes they were but once they got there, they found it was just a front for the League to show that they have a good relationship with young heroes. Soon after, something happened at Cadmus Labs. But the League had to go on a more important mission. So the "kids" went on this mission instead. By the end of the mission the kids revealed a conspiracy and took down the bad guys behind it. The League deemed this irresponsible but told them they did a good job. So instead of sending these kids back to the Teen Titans, they made a new Team where these kids received League training to one day become better heroes than the Justice League.

Expansion: 2009 - 2010
In 2009, the League expanded to Vibe, Power Girl, S.T.R.I.P.E, Mr. Terrific, Wonder Woman II, Fire, and Ice. Shortly after, the League helped relieve Star City after the Undertaking. In 2010, the League further expanded to Elongated Man, Frost, Green Lantern, Mirage, Guardian, Zatanna, Rocket, and Hawk. They would help when the Legion of Doom returned with new members.

The Return and Judgement Reigns: 2011 - 2013
In 2011, a new JSA was formed and Power Girl was made the leader and the liaison to the Justice League. They would become unofficial members of the Justice League. The team would expand to include Lady Marvel, King Marvel, Lieutenant Marvel, Savior, Overwoman, Dove II, and Animal Man. Later that year, ARGUS created their own team called the Judgement Lords. In 2012, the Judgement Lords would become more popular and eventually revealed the secret that the Hall was a front and that the Justice League had a headquarters in space. After this, the League would lose some of the trust of the world. The Judgement Lords would go in secret committing crimes masquerading as the Justice League. In 2013, the League would send most of the members away while Batman, Superman, Wonder Woman, Green Lantern, Flash, Martian Manhunter, Green Arrow, Atom, Firestorm, Captain Marvel, and Aquaman stayed. The League would defeat them and the Judgement Lords earned the vile name: The Crime Syndicate. The League would return to normal with the trust somewhat restored and they inducted the new Green Lantern, Matrix, Oracle, Doctor Light, and Wonder Woman III. ARGUS even began backing the League. After this "incident" and the Reach invasion, the Justice League decided it would be best if there was a team operating outside the law, that would not be restricted by the UN or ARGUS, so as a result the Outsiders were formed.

Lord's OMAC: 2014
When Maxwell Lord took over Checkmate in 2014 a virus called Kilg%re would take over his body. He then created a nano-virus that turns humans into cyborgs called OMACs (Observational Meta-human Activity Constructs). The OMACs would go on to attack metahumans. The League would go on to attack him. Ted would confront Lord, Lord pulled out a gun on Ted but was saved by Booster. Then Maxwell summoned a few OMACs to attack Booster and Ted but Wonder Woman saved them by knocking him out. Then Atom shrunk down and removed the virus from Lord, reverting him back to normal (some of Kil%ore's influence might still be in him). Then Batman and Ted would stop the OMACs, shutting them down for good. During this time, the team expanded to The Ray, Tomorrow Woman, Blue Devil, Brittania, Doctor Marvel, Hawk II, Metamorpho, and Green Lantern.

The Final Revelation: 2015 - Present (2016)
In 2015, the team further expanded to include Element Woman, Miss Marvel, Amazing Man, Micron, Godiva, and Elastic Woman, and Crimson Fox. In 2016, Darkseid would come to Earth to attack and the League teamed up with all their honorary members, the Teen Titans, Young Justice, the Outlaws, etc. They even inducted Mister Miracle, Big Barda, Orion, and Maxima as members during this. They eventually defeated Darkseid and went back to normal.

Membership
Every year the League has a meeting to nominate new members. Most of the members are nominated by the founding members but the rest of the league can nominate members as well. If a founding member nominates someone, 4 other founding members need to agree. If a normal member nominates someone, then another member needs to second the nomination and then 5 founding members need to agree. If a member dies, then when a worthy successor comes along they are nominated. Only 2 founding members are needed to approve a legacy hero.

Trivia

 * There are 87 members.
 * Most of the members of Young Justice are honorary members of the Justice League.
 * When members join, they are given a tour by Booster Gold.
 * Honorary Members are given access to the Hall of Justice as well as the Watchtower. As well as they can use any of the resources available.
 * When Crimson Fox was nominated, it was not known that the hero was actually two people. An exception was made and both of them joined the League.
 * When any member of the Marvel Family is nominated, they need to train for at least a year with Young Justice (or the Teen Titans).