Timeline of Avatar: The Last Airbender and The Legend of Korra.
To further clarify the often confusing timeline, this timeline and other articles date events as years before the Air Nomad Genocide (BG) and years after the genocide (AG). 0 AG is the year Fire Lord Sozin used the power from Sozin's Comet to begin the Hundred Year War with the Air Nomad Genocide and serves as an epoch for the dating system.
Ancient Times
Before the Era of Raava (before c.19, 829 BG)
- Tui and La manifest in the physical world, assuming mortal forms as koi fish.
- The Mother of Faces gives birth to Koh, the Face Stealer; however, they later become separated.
- Vaatu breaks through the barriers that separate humans and spirits, allowing both to travel between the spirit and mortal worlds.
Era of Raava (c.19, 829 BG — c. 9, 829 BG)
c.19,829 BG — Era of Raava
- Raava, the spirit of light and peace, duels with her counterpart, Vaatu, the spirit of darkness and chaos. The first known Harmonic Convergence occurs.
- Humans begin to build their cities on the shells of lion turtles to protect themselves from the dangers of the Spirit Wilds. Whenever the people have to venture into the wilds to collect food, the lion turtles bestowed upon the hunters the ability to control one of the elements. Eventually, the majority of the cities lost contact and knowledge of each other's existence, and developed unique cultures.
- Wan, the first avatar, is born
- Jaya is born.
- Wan steals the element of fire from a lion turtle to incite rebellion and steal food from the Chou family.
- Wan is banished into the Spirit Wilds.
- Wan befriends the spirits and learns the Dancing Dragon firebending form.
- Wan severs the link connecting Raava and Vaatu, in the process releasing chaos into the world.
- Wan and Raava begin their journey together to master the other elements.
- A large group of firebending settlers, led by Jaya, are killed by dark spirits during the battle in the Spirit Wilds.
- The second known Harmonic Convergence occurs.
- Wan and Raava become permanently bonded, making Wan the first Avatar.
- Wan defeats and locks away Vaatu in an elemental barrier in the hollow of the Tree of Time.
- Wan orders the spirits to return to their world and separates the two realms by sealing the spirit portals located at the North and South Poles.
- In the advent of the Avatar, the lion turtles collectively decided that their task as protectors of mankind was done and that they would no longer grant any more bending powers.
First Age of the Avatar (c. 9,829 BG — 171 AG)
Before Avatar Kyoshi (c. 9, 829 BG — 312 BG)
Unknown date before c. 3,829 BG
- As humanity left the cities established on the lion turtles, they begin to come in to contact with each other. The different peoples begin to wage war against each other, forcing Wan to intervene in order to maintain peace. His efforts, however, are of little success. The violent conflicts continue until his death and beyond. The next Avatar is born into the cycle after Wan's death.[
- The Air Nomads learn the art of airbending from the flying bison, and the Northern Air Temple is built.
- The airbending Guru Laghima achieves weightlessness and lives his final forty years without touching the ground. His philosophical rival, Guru Shoken, advocates that people should follow their own path, unburdened by morals or ideas of enlightenment.
- At some point after Laghima's death, the four nations are formed.
- A past Avatar defeats Hundun and mortally wounds his brother, forcing the conjoined twin kings to retreat to the Spirit World.
- Wan Shi Tong's Library is brought from the Spirit World into the physical world.
- The people of the later Earth Kingdom learn the art of earthbending from the badgermoles (Oma and Shu being the first known humans to use specific earthbending techniques), the Sun Warriors learn the art of firebending from the dragons, and the Water Tribes learn the art of waterbending by observing the pull of the moon on the ocean tides.
- A group of waterbenders from the Northern Water Tribe construct a large city out of ice in order to unite the various tribes inhabiting the North Pole region.
- Following a civil unrest, the Water Tribe —which was originally centered around the North Pole— splits into two groups: one stayed at the North Pole, while the other group went out to settle the South Pole. Relations with their sister tribe were later healed, and the two tribes would gather together at annual New Moon celebrations.
- A large group of waterbenders from the Southern Water Tribe, who are wandering through the Earth Kingdom, discover the Foggy Swamp and, comfortable with the large amount of water there, decide to stay, forming the Foggy Swamp Tribe. The Southern Water Tribe never learns of this offshoot and the Foggy Swamp Tribe itself later forgets its own origins.
- The Sun Warrior civilization flourishes, learning firebending from dragons. They operate under a tribal chiefdom led by a single chief. They eventually fade into obscurity, hiding in ruins, and are believed to be extinct. The rest of the Fire Islands archipelago is influenced by their culture, and the islanders carry on the art of firebending.
- Warlords battle each other for land in the disaggregated Fire Islands. One of them, Toz, orders the abduction of all of the children of the village that refused to provide him with tribute. The children are never seen again, causing their mothers to die from sadness and become Kemurikage spirits. The Kemurikage exact their vengeance by taking the children of the warlord and his men, leading to the collapse of Toz's regime as his men abandon him out of fear of the dark spirits.
- At some point, several members of the Bhanti Tribe venture from their island, located in the southern region of what would later become the Fire Nation archipelago, to the other nations, where they become sages,[23] most notably the Fire Sages and Earth Kingdom sages. While the former maintain their spiritual traditions, the latter gradually devolve into de facto officials.
- Unification wars of the Fire Islands: A man manages to defeat the remaining warlords and bring them to justice, thus uniting the Fire Islands into the Fire Nation, under himself as the first Fire Lord, leader of the spiritual Fire Sages. The Fire Lord and the Fire Sages lead a spiritual rule, much as the Air Nomads were led by their monks. Over time, however, the Fire Lord accumulated political power, ruling the Fire Nation as a sovereign, and the office became hereditary, beginning the line of Fire Lords.
- Oma founds the city of Omashu after the death of her lover Shu.
- The vast Earth Kingdom is gradually united under the political authority of the city-state of Ba Sing Se. The King of Ba Sing Se becomes Earth King, overlord of all of the smaller kingdoms within the Earth Kingdom, some of which retain their own hereditary lordship.
- The Fire Nation's navy is forbidden to fly military colors in the Eastern Sea during the 22nd Earth King's reign.
- Avatar Szeto of the Fire Nation is born, and saves his country from civil strife and severe economic decline by working within its bureaucracy, eventually becoming Grand Advisor to Fire Lord Yosor. The Festival of Szeto is later set up to honor his life and accomplishments.
- Avatar Yangchen of the Air Nomads is born in the Western Air Temple, after the death of her predecessor Szeto. Her reign as Avatar is a peaceful one, due to her fierce dedication to keeping balance and serving the world. Among her most notable deeds were striking a deal with the spirit Old Iron and signing a treaty with the Fifth Nation. Yangchen does however encourage the expansion of humanity at the expense of the spirits, causing several to become corrupted, though this consequence does not manifest itself until later.
- The 40th Earth King is assassinated by Tieguai the Immortal.
- Avatar Yangchen dies, and Avatar Kuruk is born in the Northern Water Tribe.
- Kuruk meets and befriends Jianzhu, Kelsang and Hei-Ran on his journey to master the four elements.
- When Kuruk attempts to master the Avatar State for the first time, he accidentally destroys an entire island; luckily, there were no fatal casualties.
- After travelling to the Spirit World for the first time, Kuruk learns of the dark spirits that were corrupted by Yangchen's neglect, now attempting to break into the physical world through weakpoints created by the powerful spirit Father Glowworm. He begins hunting and slaying them to protect humanity at the cost of severe damage to his health and spirit, the trauma of which causes him to ignore his other duties and adopt a hedonistic lifestyle as a coping mechanism. He stays silent about the hunts to protect Yangchen's legacy and prevent his friends from choosing to share his fate, ultimately giving himself a reputation as an indolent and neglectful Avatar.
- With the help of Nyathita, Kuruk tracks down and battles Father Glowworm to a draw, leaving the spirit drastically weakened for the next couple of decades.
- Kuruk tries to kill Koh, the Face Stealer, as revenge for stealing the face of his fiancée Ummi. This event is confusing to place chronologically, as if Koh's description of the event is taken literally, it would have happened c. 800-700 BG, over three hundred years before Kuruk's birth.
The age of Avatar Kyoshi ( 312 — 82 BG)
312 BG — Year of the Dragon
- Avatar Kuruk dies; Avatar Kyoshi of the Earth Kingdom is born to Jesa and Hark, a pair of daofei (Earth Kingdom outlaws) who lead the Flying Opera Company outfit.
- Attempts by the Earth Kingdom to locate Kyoshi fail, presumably due to her family constantly being on the move. This leads many to assume that the Avatar was never reborn, and the Earth Kingdom subsequently suffers from growing instability, as the Fifth Nation pirates under Tulok attack its southern coast and the Yellow Neck uprising breaks out.
- Rangi is born to Hei-Ran and Junsik.
- Yun is born.
- Aoma is born to Yokoya's village captain.
- Suzu is born.
- Jae is born.
- Mirai is born.
- Junsik dies.
- Lady Wumei dies. Her husband, Lu Beifong, is devastated by her death and consequently falls under the influence of Chamberlain Hui.
- Te Sihung is born.
- Kyoshi is left in the care of the villagers of Yokoya by her parents. After the latter depart, the locals immediately renege on the deal and cast Kyoshi onto the streets. Rendered homeless, she almost dies of starvation.
- Jianzhu and Kelsang travel to Yokoya while attempting to find the Avatar through the Air Nomad test. Kyoshi takes the test but leaves before completing it. Seeing her neglected state, Kelsang tracks her down and becomes her unofficial caretaker and father figure.
- Jianzhu defeats the Yellow Necks in the Battle of Zhulu Pass and buries about 5,000 rebels alive, ending their rebellion. The remaining Yellow Necks go into hiding, while their leader Xu Ping An is secretly imprisoned so that the Fire Nation can study his ability to generate lightning.
- Fifth Nation leader Tulok is succeeded by his daughter Tagaka. She proves to be an exceptionally capable pirate queen, earning a fearsome reputation and making the Fifth Nation the most powerful pirate fleet in the world. At some point, she defeats the Earth Kingdom's navy in battle and kills the last admiral of Ba Sing Se in a duel.
- Jesa and Hark die of a fever.
- Yun, now an street urchin and earthbending prodigy, is falsely identified as the Avatar by Jianzhu and Kelsang.
- Jianzhu begins the construction of the Avatar Mansion in Yokoya, to provide a safe place to train Yun. Kelsang arranges for Kyoshi to be hired as a servant at the mansion, where she later befriends Yun and Rangi, the latter now a junior Fire Nation Officer.
- The Flying Opera Company, weakened drastically by the loss of Hark and Jesa, is forced to become beholden to the Autumn Bloom Society, in reality the disguised Yellow Necks.
- Jianzhu acquires a nemesis in the form of Hui, who continually opposes Jianzhu's political work for no other reason than to advance his own career.
- Jianzhu, Hei-Ran and Amak begin training Yun in espionage and assassination.
- The pirate band of the Fade-Red Devils is completely wiped out by the Fifth Nation.
- Yun and his companions, most notably Kyoshi, defeat the Fifth Nation pirates. The identity of the Avatar is consequently cast into doubt, as Kyoshi displayed extremely unusual bending powers.
- To solve the Avatar succession crisis, Jianzhu consults Father Glowworm, after which Kyoshi is revealed to be the true Avatar. Yun is sacrificed by Jianzhu to the malevolent spirit and believed to be dead. Kyoshi consequently refuses to accept Jianzhu as her teacher. Kelsang is killed by Jianzhu during his attempt to safeguard Kyoshi, though she manages to escape with Rangi, fleeing from Jianzhu into the inner Earth Kingdom, where they join the Flying Opera Company.
- Unknown to anyone, Yun manages to overpower Father Glowworm with his earthbending within the Spirit World. He consumes the spirit, gaining an inhuman power and enabling him to escape back to the physical world. He later begins a campaign of vengeance against everyone who he believes misled him about being the Avatar.
- Xu Ping An is freed by the Flying Opera Company as part of their obligations to the Autumn Bloom Society. He plans to restore the Yellow Necks, but is soon killed by Kyoshi in a lei tai duel.
- Hui calls a conclave of Earth Kingdom sages to discuss whether Jianzhu is fit to serve as the Avatar's guardian. Many sages, including Hui, are killed in a mass poisoning orchestrated by Jianzhu.
- Lek is killed during the kidnapping of Rangi.
- Jianzhu is killed by Yun when confronting Kyoshi in Qinchao.
- Kyoshi seeks sanctuary at the Southern Air Temple and receives a vision from Kuruk.
- The Camilla-Peony War. Fire Lord Zoryu faces attempts at insurrection from his illegitimate half-brother Chaejin and the Saowon Clan, led by Chaejin's mother Huazo.
- Yun murders Lu Beifong during the Festival of Szeto as revenge for his support of Jianzhu. He later provokes a brawl between the Saowon and the Keohso Clan as a distraction, and nearly murders Hei-Ran during it.
- The Camilla-Peony War comes to an end when Zoryu has a body double of Yun confess to committing the real Yun's crimes on behalf of the Saowon, turning the rest of the Fire Nation against them. He later resolves to hobble the clans in order to establish autocratic rule within the Fire Nation.
- Kyoshi, Rangi, Jinpa, Wong and Kirima battle Yun at the Avatar Mansion, Kyoshi eventually killing her old friend.
- Kyoshi fully adopts Yokoya peninsula as her homeland and trains the first Kyoshi Warriors.
- Avatar Kyoshi kills the warlord Chin and separates Yokoya from the mainland, founding Kyoshi Island; the War of Chin the Conqueror ends with the victory of the Earth Kingdom government. The 46th Earth King restores his reign over the whole Earth Kingdom, though civil unrest begins to spread on the continent. The day of Chin's death is remembered as Avatar Day in Chin Village and Kyoshi Day on Kyoshi Island.
- Sometime after this event, a peasant uprising in Ba Sing Se spurs Kyoshi to create the Dai Li. In the process, the Earth Kingdom is turned into a constitutional monarchy.
Prelude of the Hundred Year War ( 82 — 0 BG)
82 BG — Year of the Horse
- Avatar Kyoshi dies at age 230; Avatar Roku of the Fire Nation is born.
- Fire Lord Sozin is born the same day as Roku
- Prince Sozin ascends the throne, following the death of his father.
- Avatar Roku destroys the Fire Temple on the winter solstice while stuck in the Avatar State during his training.
- Avatar Roku returns to the Fire Nation after twelve years of travel and marries Ta Min, a noblewoman from the Capital. During the wedding, Sozin professes his desire to expand the Fire Nation through conquest but is sharply turned down by Roku.
- Guru Pathik is born.
- Avatar Roku discovers the first Fire Nation colonies in the Earth Kingdom and confronts Fire Lord Sozin. Roku and Sozin engage in battle, resulting in Roku destroying part of the Fire Nation Royal Palace. Roku threatens to kill Sozin should he ever resume his conquest and Sozin is forced to back down, powerless against the fully realized Avatar.
- A massive volcano erupts on Avatar Roku’s home island, so powerful it’s felt over a hundred miles away. Sozin comes to help Roku fight the eruption, but when Roku is overwhelmed by toxic gas, Sozin leaves him for dead to prepare for his war on the world. Roku subsequently dies at age seventy; Avatar Aang of the Air Nomads is born.
- Bumi of Omashu is born.
- Aang receives his tattoos after inventing the air scooter technique, making him the youngest airbending master in recorded history.
- Aang and his eccentric childhood friend Bumi would slide down the Omashu delivery system for fun.
- Aang played with his friend Kuzon in the Fire Nation.
The Hundred Year War ( 0 — 100 AG)
0 AG — Year of the Dragon
- Avatar Aang is confirmed as Avatar at the age of twelve, four years earlier than normal, because the monks were fearful of a possible war. The monks decided to send Aang to the Eastern Air Temple to continue his training. Distraught and confused by his destiny, he flees from the Southern Air Temple with his flying bison, Appa. Upon getting caught in a storm and being pulled underwater, Aang enters the Avatar State and encases himself in ice near the South Pole.
- Fire Lord Sozin begins what would be the Hundred Year War by attacking the other nations. He uses the power of a comet, later renamed Sozin's Comet in his honor, to launch a genocidal attack on the Air Nomads in an attempt to kill the Avatar. All of the Air Nomads are killed except for Aang and the world’s sky bison population is dramatically depleted.
- c. The Fire Nation launches a massive coordinated invasion of the Earth Kingdom, slowly but surely advancing across the continent over the course of the next hundred years. The city of Taku is destroyed during the process.
- Azulon is born to Fire Lord Sozin.
15 AG — Year of the Goat
- In an attempted invasion of the North, the Fire Navy and the Northern Water Tribe engage in battle, ending in Northern Water Tribe victory and the capture of Fire Navy troops and uniforms.
19 AG — Year of the Pig
- Kanna is born in the Northern Water Tribe.
20 AG — Year of the Rat
- Fire Lord Sozin dies at age 102; Prince Azulon ascends the throne.
35 AG - Year of the Rabbit
- Kanna flees to the Southern Water Tribe after Pakku's proposal.
39 AG — Year of the Goat
- Jeong Jeong of the Fire Nation is born.
40 AG — Year of the Monkey
- c. The Fire Nation begins raids on the Southern Water Tribe, destroying its city and systematically capturing its waterbending population.
- c. Hama is taken prisoner by the Fire Nation
Sometime before 45 AG
- Iroh is born to Fire Lord Azulon and Ilah.
55 AG - Year of the Pig
- Ozai is born to Fire Lord Azulon and Ilah.
Sometime before 74 AG
- Lu Ten is born to Prince Iroh.
c. 75 AG — Year of the Goat
- Kuei is born to the 51st Earth King, becoming heir to the throne of the Earth Kingdom.
c. 79 AG — Year of the Pig
- The 51st Earth King dies. Kuei becomes the 52nd Earth King. Because of the new Earth King's youth, Long Feng is appointed Regent of Ba Sing Se, and becomes the Earth King's most trusted advisor. Taking advantage of his position, Long Feng suppresses knowledge of the war from the young prince and takes complete control of the city.
82 AG — Year of the Tiger
- Hahn of the Northern Water Tribe is born.
- Prince Zuko is born to Prince Ozai and Princess Ursa.
- Jet of the Earth Kingdom is born.
- Yin is born.
84 AG — Year of the Dragon
- Princess Yue is born to Chief Arnook of the Northern Water Tribe and his wife. A sickly infant, Yue is healed by the Moon Spirit, Tui, by having some of its life spirit infused within her.
- Sokka is born to Chief Hakoda and Kya of the Southern Water Tribe.
- Kori Morishita is born to Mayor Morishita and his wife.
85 AG — Year of the Snake
- Mai of the Fire Nation is born to Ukano and Michi.
- Princess Azula is born to Prince Ozai and Princess Ursa.
- Katara is born to Chief Hakoda and Kya of the Southern Water Tribe.
- Ho Tun is born.
87 AG — Year of the Goat or 88 AG — Year of the Monkey
- Moo-Chee-Goo-Chee-La-Poo-Chee the Third is born.
- Teo, son of the mechanist, is born.
- Toph Beifong is born to Lao Beifong and Poppy Beifong of Gaoling.
92 AG — Year of the Rat
- Penga is born.
c. 94 AG — Year of the Tiger
- Iroh begins his legendary Siege of Ba Sing Se.
- The Southern Raiders attack the Southern Water Tribe in an attempt to kill the last Southern waterbender. Chief Hakoda's wife Kya sacrifices herself to save the eight-year-old Katara, the true last waterbender of the Southern Water Tribe.
95 AG — Year of the Rabbit
- Iroh breaks through the Outer Wall of Ba Sing Se.
- Iroh's son Lu Ten is killed in the siege of Ba Sing Se, causing Iroh to end the operation after six hundred days.
- Prince Ozai tries to use Lu Ten's death and Iroh's grief to persuade Fire Lord Azulon to designate him heir, but a disgusted Azulon refuses, and orders Ozai to kill Zuko and experience the pain of losing his firstborn. Ursa learns of this, and conspires with Ozai to kill Azulon in order to save Zuko and make Ozai Fire Lord. With Azulon's passing at age ninety-five, Ozai succeeds him as Fire Lord and Ursa is banished from the Fire Nation Capital.
- Prince Zuko becomes Heir to the throne of the Fire Nation.
97 AG — Year of the Snake
- Prince Zuko is banished to capture the Avatar after an Agni Kai with his father, Fire Lord Ozai. He is accompanied by his uncle, Iroh. Azula becomes Heir to the throne of the Fire Nation till Zuko could capture the Avatar.
98 AG — Year of the Horse
- Tom-Tom of the Fire Nation is born to Ukano and Michi.
- Avatar Aang is awakened from one hundred years of suspended animation by Katara and Sokka.
- Prince Zuko locates the Avatar and begins to hunt him down after his first attempt to apprehend him fails and causes much damage to Katara and Sokka's village of Wolf Cove in the Southern Water Tribe.
- There is a massive jailbreak at a Prison rig for earthbenders, and all inmates escape.
- Avatar Roku informs Aang on the winter solstice that Sozin's Comet will arrive by summer's end, telling him that Ozai must be defeated by the time of its arrival.
- The Fire Sages are accused of treason and imprisoned by Admiral Zhao.
- Avatar Aang begins his waterbending training with Katara.
- The village of Gaipan is destroyed and the villagers evacuate.
- Avatar Aang begins his firebending training with Jeong Jeong, however, his training ends prematurely when Admiral Zhao attacks Jeong Jeong's camp.
- The Fire Nation is repelled at the battle for the Northern Air Temple, but they acquire an experimental war balloon in the aftermath.
- The Fire Nation invades the Northern Water Tribe but is repelled by Aang after he temporarily fused with the Ocean Spirit, La, who was enraged with Admiral Zhao for killing the Moon Spirit, Tui.
- La imprisons Admiral Zhao in the Fog of Lost Souls in retaliation for Tui's death.
- Princess Yue sacrifices her life to become the Moon Spirit. This is made possible by the small bit of spirit that Tui infused within her to bring her to life as a baby.
- Members of the Northern Water Tribe set out to the Southern Water Tribe to aid them rebuild, initializing the Southern Reconstruction Project.
- Omashu falls to the Fire Nation.
- Avatar Aang begins his earthbending training with Toph.
- An attempt to break through Ba Sing Se's Outer Wall, using a giant drill and led by Princess Azula, fails.
- Ba Sing Se falls to the Fire Nation through an internal coup d'état led by Princess Azula and the Dai Li.
- Avatar Aang is slain by Azula, and subsequently brought back to life by Katara with spirit water.
- High-security prisoner General Iroh is imprisoned by Princess Azula and the Dai Li.
- Dai Li operative Joo Dee is appointed Supreme Bureaucratic Administrator of Ba Sing Se by Princess Azula.
- The Fire Nation establishes administrative control of the Serpent's Pass by establishing a fortified bridge.
- First day of the eighth month: An attack on the Fire Nation Capital led by Avatar Aang during a solar eclipse in an attempt to defeat the Fire Lord fails, leaving many of the Fire Lord's enemies imprisoned.
- During the eclipse, King Bumi liberates Omashu from the Fire Nation.
- General Iroh breaks free from the Fire Nation Capital City Prison.
- Prince Zuko betrays the Fire Nation and joins the Avatar's quest to oust Fire Lord Ozai.
- Avatar Aang begins his firebending training with Prince Zuko and after learning the essence of firebending from Ran and Shao.
- Zuko and Sokka liberate the Boiling Rock prisoners, and Mai and Ty-Lee betray Princess Azula.
- Sometime after the first day of the eighth month: Sozin's Comet returns, enhancing the firebenders' powers one hundred-fold.
- Fire Lord Ozai crowns himself Phoenix King and appoints Azula as Fire Lord.
- The Order of the White Lotus, led by General Iroh, frees Ba Sing Se from Fire Nation rule in the liberation of Ba Sing Se, effectively liberating the entire Earth Kingdom.
- Aang meets an ancient lion turtle, the world's oldest living being, and learns the lost art of energybending.
- Prince Zuko and Katara defeat Azula during her coronation as Fire Lord in a comet-enhanced Agni Kai. This causes Azula to lose her remaining sanity.
- Utilizing Sozin's Comet, Ozai launches a major attack on the Earth Kingdom with his armada of Fire Nation airships in an attempt to decisively end the war with a sheer display of force and destruction.
- An attack launched by Toph, Sokka, and Suki succeeds in destroying the armada while Aang battles Ozai.
- Avatar Aang defeats Ozai through the use of the Avatar State and uses energybending to strip him of his firebending.
- Phoenix King Ozai is imprisoned for various war crimes.
- Prince Zuko ascends to the throne as Fire Lord, vowing to the nations that he will dedicate his rule to rebuilding the world with the help of the Avatar.
Rebuilding the World ( 100 - 153 AG)
Unknown year
- The Order of The White Lotus comes out of hiding and begins openly serving the Avatar and the world's nations. Disapproving of this course of action, order member Xai Bau forms a splinter group known as the Red Lotus, which eventually resolves to restore balance and freedom to the world by reopening the spirit portals and eliminating the nations of the world.
- The Harmony Restoration Movement is launched to remove the Fire Nation colonies from the Earth Kingdom
- Toph founds the Beifong Metalbending Academy.
- In response to the Harmony Restoration Movement, Kori Morishita creates the Yu Dao Resistance and attempts to assassinate Fire Lord Zuko.
- A crisis at Yu Dao causes Fire Lord Zuko to remove his support from the Harmony Restoration Movement, threatening to plunge the world into war once again.
- Avatar Aang averts the war, with the notion that the nations can live together in peace.
- Aang forms the Air Acolytes from the Official Avatar Aang Fan Club.
- Wolf Cove is rebuilt as a great city within the Southern Water Tribe as part of the Southern Reconstruction Project.
- Hakoda is elected Head Chieftain of the Southern Water Tribe, and begins a relationship with Malina, one of the heads of the Southern Reconstruction Project.
- A huge deposit of crude oil is discovered at the South Pole. Malina and her brother Malik initially decide to put the oil under the control of the Northern Water Tribe, but Malina changes her mind after coming to believe that the South will be able to use it effectively.
- Zuko, with the help of Team Avatar and Azula, embarks on a search for Ursa, which leads them to her new life in Hira'a. Ursa has her memories restored, and she, Ikem and Kiyi return to the Fire Nation with Zuko.
- Azula escapes into the wilderness following the conclusion of the search, having been shocked by the news that her mother truly loved her, despite her beliefs on the matter.
- Yu Dao and other Fire Nation colonies create a joint government of Fire Nation and Earth Kingdom representatives, beginning the progression toward the formation of the United Republic of Nations.
- The New Ozai Society reassembles in an attempt to overthrow Fire Lord Zuko, with Ukano as one of their leaders.
- Following her escape, Azula gives up on becoming Fire Lord, deciding instead to corrupt Zuko into a Fire Lord who rules with fear.
- Children in the Fire Nation Capital start getting kidnapped by Kemurikage imposters, in reality Azula and a group of women who were imprisoned in the mental hospital with her.
- Katara and Sokka return to the South Pole after two years.
- Master Pakku founds a waterbending school in the Southern Water Tribe.
- A group of Southern Water Tribe nationalists led by Gilak attempt to eradicate all foreign presence in the Southern Water Tribe, but are foiled by the involvement of Team Avatar, with Gilak getting killed.
- Cranefish Town is established on the western shores of the Earth Kingdom and rapidly grows. Tensions begin to escalate between benders and nonbenders, resulting in Liling's bender supremacist uprising, which is defeated by Team Avatar and the Earthen Fire Refinery's nonbender guards.
- Aang and Katara marry and have two children: Bumi, a nonbender, and Kya, a waterbender.
- Aang and Zuko establish the United Republic of Nations, a fifth nation with Republic City, formerly named Cranefish Town, as its capital.
- The Fire Nation gifts a large statue of Aang to Republic City as a symbol of peace and goodwill.
- Toph travels the world to teach metalbending.
- Izumi is born to Fire Lord Zuko.
- Gommu is born.
- Tenzin, the youngest son of Aang and Katara and the only airbender among their children, is born.
- Lightning Bolt Zolt is born.
- Lin Beifong is born to Toph and Kanto.
- Hiroshi Sato is born.
- Around the same time, the cabbage merchant founds Cabbage Corp.
- Suyin Beifong, Lin's half-sister, is born.
- Yakone is placed on trial for his crimes against Republic City. After attempting an escape, he loses his bending to Avatar Aang. He still manages to escape, has plastic surgery done to hide his identity, and runs away to the Northern Water Tribe where he falls in love with a local woman and marries her.
- Shiro Shinobi is born.
- Saikhan is born.
- Noatak, the eldest son of Yakone and his wife and later known as the revolutionary Amon, is born.
- Iroh's life comes to an end, but at the time of his death, he leaves his body behind to go to the Spirit World to continue existing there.note
- Tonraq is born to the Northern Water Tribe chief.
- Tarrlok, the youngest son of Yakone, is born.
- Iroh, grandson of Zuko, is born to Izumi.
- Unalaq is born to the Northern Water Tribe chief.
- Pema is born.
- Equalist protester is born.
- Hiroshi Sato founds Future Industries.
- Suyin becomes involved with members of the Terra Triad, to the indifference of Toph and the disapproval of Lin, now a police officer.
- Suyin is apprehended by Lin while acting as a getaway driver for her Terra Triad friends, and accidentally scars her older sister's face while resisting arrest. Not wanting to have one of her daughters imprisoned, Toph covers up Suyin's involvement in the crime and arranges to have her live with her grandparents. With Lin disgusted by Toph's refusal to discipline Suyin, the event causes a three-way schism between the Beifong women.
- Toph resigns as Chief of Police.
- Noatak at 14, runs away after defending Tarrlok from Yakone and bloodbending them both.
- Suyin begins travelling the world.
- Ryu is born.
- Tonraq, heir apparent for the Northern Water Tribe chiefdom, leads a battalion against an invasion of their home by barbarians. He destroys a spirit forest in the process, resulting in his banishment by the tribal chief, his father.
- Unalaq takes Tonraq's position as heir apparent.
- Tonraq settles in the South Pole.
- Mako is born to San and Naoki.
- Asami Sato is born to Hiroshi Sato and Yasuko.
The last Avatar of the Old Age ( 153 - 171 AG)
153 AG — Year of the Ox
- Avatar Aang dies; Avatar Korra of the Southern Water Tribe is born to Tonraq and Senna.
- After travelling around the world and becoming a renowned healer in her own right, Kya returns to the Southern Water Tribe to tend her grieving mother.
- Hong Li is born.
- Bolin, the youngest son of San and Naoki, is born.
- Desna and Eska are born to Unalaq and Malina.
- Going on an investigation searching for the new Avatar, The White Lotus enters Senna and Tonraq's home. On entering, they discover that Korra has already begun bending three of the four elements. Only Airbending remains a challenge in terms of her raw skills.
- Yasuko is murdered by a member of the Agni Kai Triad during a robbery at the Sato Estate.
- Zaheer, Gahzan, Ming-Hua and P'li of the Red Lotus attempt to kidnap Korra so that they can impart their ideals onto her, but they are stopped by Tonraq, Sokka, Zuko and Tenzin. Unalaq is also involved from afar, but he is able to remain undiscovered. To prevent further incidents of this nature, the White Lotus arrange for Korra to be housed and trained within a secret compound at the South Pole.
- San and Naoki are murdered by a firebender criminal, leaving Mako and Bolin orphans.
- Jinora is born to Tenzin and Pema.
- Ikki is born to Tenzin and Pema.
- Noatak, now living under the name of Amon, develops a way of using bloodbending to permanently disable another person's bending, which he passes off as a gift from the spirits. Posing as a nonbender who lost his parents to a firebending criminal, he creates the Equalist movement within Republic City, intending to eliminate bending throughout the world.
- Hiroshi Sato joins the Equalist movement, blaming bending for the death of his wife.
- Meelo is born to Tenzin and Pema.
- Wonyong Keum is asked by Hiroshi to help create weapons for the Equalists. He refuses, and disassociates himself from Future Industries. Unaware of her father's Equalist ties, Asami comes to resent Keum for walking out on an important deal with her father.
- Fire Lord Zuko abdicates the position of the Fire Lord, after 67 years of rule. Princess Izumi ascends to the Fire Lord position, and General Iroh II becomes the Heir to the Fire Nation. Zuko becomes an ambassador for the Fire Nation as he travels the world.
- Suyin founds the city of Zaofu with the help of Baatar, a hired architect. The two later marry and have five children: Baatar Jr, Huan, Wei, Wing and Opal. Suyin later reconciles with Toph, and adopts the eight year old Kuvira as a surrogate daughter and protege. Lin meanwhile remains estranged from her sister and mother.
- Sokka dies.
- Tarrlok and Tenzin become members of the United Republic Council, representing the Northern Water Tribe and Air Nomads, respectively.
- Korra completes her firebending training. After political tensions within the United Republic prevent Tenzin - the only living airbending master in the world - from being able to teach her, Korra travels to Republic City to learn from him.
- Amon, Hiroshi and the Equalists attempt to carry out a revolution against benders. Amon is able to remove the bending of many, including Lightning Bolt Zolt, Tarrlok, Lin, Korra, and several members of the Bending Triads, Metalbender police and White Lotus, and the Equalists even briefly take control of Republic City. They are ultimately defeated when Hiroshi is arrested and Amon is revealed as a fraud.
- Following his revolution's failure, Amon escapes Republic City with Tarrlok, who later kills them both when he uses an Equalist electric glove to blow up their boat.
- Having struggled to connect with her spiritual self her entire life, Korra finally manages to make contact with Aang while dealing with depression following the loss of her bending. He uses energybending to restore her bending, and passes on the ability to her, enabling Korra to restore the bending of Lin and Amon's other victims, with the exception of the criminals.
- President Raiko becomes the first democratically elected President, replacing the United Republic Council.
- The Water Tribe Civil War. As part of his plans to release Vaatu and merge with the spirit to become a "Dark Avatar", Unalaq manipulates Korra into reopening the Spirit Portals and has the Northern Water Tribe occupy the Southern Water Tribe.
- Varrick attempts to have President Raiko and his wife kidnapped while framing the Northern Water Tribe for the deed, in order to force the United Republic to intervene in the Water Tribe Civil War. His plot is foiled by Bolin, and he and his assistant Zhu Li are imprisoned.
- Vaatu escapes and merges with Unalaq during Harmonic Convergence, despite Korra's attempts to prevent both things. The two of them manage to rip Raava out of Korra and destroy her, severing Korra's connection with her past lives.
- Channeling her spiritual power, Korra grows to fight the Dark Avatar again within Yue Bay of Republic City, eventually using Spirit bending to purify Vaatu from Unalaq.
- Collateral damage to their prison from the battle between Korra and the Dark Avatar allows Varrick and Zhu Li to escape. They later make their way to Zaofu, Varrick and Suyin being old friends.
- Korra rejoins with Raava. Unfortunately, due to the initial separation, the past lives are lost forever, making Korra the first Avatar of a new age of Avatars.
Second Age of the Avatar (171 AG — Present)
171 AG — Year of the Goat (post-Harmonic Convergence)
- Korra leaves the spirit portals open and denounces the Avatar's role as the bridge between the two worlds, assuming a more general peacekeeper role.
- The Water Tribe Civil War ends. The Southern Water Tribe becomes independent with Tonraq as its new chief.
- Desna and Eska become the new co-chiefs of the Northern Water Tribe.
- After a millennium of exile in the Spirit World, Hundun reenters the mortal world to take revenge on the Avatar and throw the world into chaos. Korra defeats and kills Hundun, however, restoring balance in the Spirit World.
- A number of nonbenders gain airbending abilities all across the four nations, including Bumi, Kai, Opal and Zaheer.
- Korra is banished from Republic City by President Raiko.
- The Earth Queen Hou-Ting orders the Dai Li to kidnap airbenders throughout Ba Sing Se.
- Zaheer escapes his prison
- Korra becomes the first metalbending Avatar.
- Earth Queen Hou-Ting is assassinated by Zaheer.
- The Red Lotus attacks the Northern Air Temple.
- P'Li is killed by Suyin.
- Bolin becomes the second known non-Avatar lava-bender.
- Ghazan destroys the Northern Air Temple.
- Zaheer becomes the second person in history to be able to fly.
- Ming-Hua is killed by Mako.
- Ghazan commits suicide in an attempt to bury Mako and Bolin.
- Zaheer is imprisoned once again.
- Jinora receives her airbending tattoos and is anointed as a master.
- Korra is officially welcomed back to Republic City.
- The airbenders return to their nomadic roots, promoting peace, balance, and harmony around the world while Korra recuperates.
Between 171 — 174 AG
- Republic City comes to terms with the spirits living in the metropolis.
- With the Earth Kingdom in chaos following the assassination of the Earth Queen, Raiko and Tenzin call upon Suyin to take control of the nation. Kuvira, now the captain of her security force, urges her to accept the offer, believing that the Earth Kingdom could benefit from Zaofu's influence, but Suyin refuses to do so out of concern that it would mean forcing her ideals upon others..
- Disgusted with Suyin's refusal, Kuvira leaves Zaofu with Suyin's security force and seizes control of Ba Sing Se, an act which gets her named the official ruler of the Earth Kingdom. She subsequently spends the next three years amassing an army and establishing iron-fisted order across the nation.
- Korra rehabilitates at the Southern Water Tribe compound for two years, though still emotionally scarred by Zaheer's attempt on her life, she sets out on a journey to reconnect with Raava.
174 AG — Year of the Dog
- Korra's travels lead her to come across Toph in the Foggy Swamp, with the elderly earthbender helping her to start dealing with her mental trauma.
- Wu is crowned the fifty-fourth ruler of the Earth Kingdom. However, Kuvira announces during Wu's coronation the dissolution of the Earth Kingdom, reforming it into a new "Earth Empire" under her leadership. After defeating Korra in a one-on-one duel, Kuvira successfully annexes Zaofu into the Earth Empire, bringing the entire nation under her control.
- The three Beifong matriarchs reconcile with each other when they work together to free the family from Zaofu.
- With a spirit energy cannon at her disposal Kuvira marches her army to Republic City and forces President Raiko to surrender the United Republic of Nations to her. Korra and her friends mount a defense of the city.
- Hiroshi Sato sacrifices himself in the battle against Kuvira's enormous mecha suit.
- After the mecha is destroyed, Kuvira turns the surviving cannon at Korra, forcing her to enter the Avatar State to bend its' energy. This results in a new spirit portal emerging in the heart of Republic City. After Korra shows empathy for her, Kuvira surrenders herself and the military of the Earth Empire.
- Wu plans to abolish the Earth Kingdom monarchy in favor of independent states.
- Varrick and Zhu Li marry. Afterwards, Korra and Asami enter a relationship.
- President Raiko announces an expansion of Republic City.
- Spirits and humans come into conflict over dominance of the Republic City spirit portal and its surrounding area.
- Presidential elections in the United Republic of Nations begin. Zhu Li Moon is elected the second President of the United Republic, defeating the incumbent Raiko.
- Many triads lost their turf during the destruction of downtown Republic City, now fighting each other for the remaining turf wars.
- After a trial for her war crimes, Kuvira is sentenced to house arrest in Zaofu three months after her surrender.
- The first democratic elections in the Earth Kingdom take place in the State of Gaoling but are rendered null after Commander Guan influenced voters through brainwashing.
