History of the World of Avatar

The world of Avatar boasts an extensive history spanning over twenty thousand years, broadly categorized into the 'Before the Avatar' and 'Of the Avatar' eras.

Initially, lion turtles safeguarded humanity, granting bending abilities for ventures into the Spirit Wilds. With the Avatar's arrival, their role diminished, leading to the formation of the distinct four nations.

Key historical conflicts include the Hundred Year War, the Anti-bending Revolution, and the rise of the Earth Empire, alongside transformative events like Harmonic Convergence.

Table of Contents

Before the era of Raava (before c. 19,829 BG)
  • Unknown date 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.
    • The first humans appear in the world.
    • 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.
  • Unknown date before c. 9,850 BG:
    • Humans begin to build their cities on the shells of lion turtles to protect themselves from the dangers of the Spirit Wilds. Lion turtles bestow temporary bending.
  • 9,850 BG — Year of the Snake: Wan is born.
  • 9,848 BG — Year of the Sheep: Jaya is born.
  • c. 9,832 BG — Year of the Rat:
    • Wan steals fire from a lion turtle to incite rebellion and steal food.
    • Wan is banished into the Spirit Wilds.
    • Wan befriends spirits and learns the Dancing Dragon firebending form.
  • c. 9,830 BG — Year of the Tiger:
    • Wan severs the link connecting Raava and Vaatu, releasing chaos.
    • Wan and Raava begin their journey to master the other elements.
  • c. 9,829 BG — Year of the Rabbit:
    • A large group of firebending settlers, led by Jaya, are killed by dark spirits.
    • 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 spirits to return to their world and separates the two realms by sealing the spirit portals.
    • Lion turtles renounce their roles as protectors, no longer granting bending.

First Age of the Avatar (c. 9,829 BG — 171 AG)

Before Avatar Kyoshi (c. 9,829 BG — 312 BG)
  • Sometime between 9,829 BG and 3,829 BG: Humanity leaves lion turtle cities, begins warring. First Avatar after Wan is born. Air Nomads learn airbending from flying bison. Northern Air Temple built.
  • Sometime between 9,829 BG and 7,000 BG: Ba Sing Se is founded as a subterranean mining settlement.
  • c. 7,000 BG: Massive volcanic eruption causes an ice age.
  • c. 3,829 BG — Year of the Rabbit: Airbending Guru Laghima achieves weightlessness. Four nations are formed.
  • Sometime between 9,829 BG and Szeto's era: Wan Shi Tong's Library brought to physical world. Earthbenders learn from badgermoles, Sun Warriors from dragons, Water Tribes from moon.
  • Early nations formation: Southern Water Tribe civilization emerges. Agna Qel'a (Northern Water Tribe city) built. Water Tribe splits (North/South), then later heals. Foggy Swamp Tribe forms. Sun Warrior civilization flourishes.
  • Unification of Fire Islands: A man unites warlords, becoming the first Fire Lord, leading to the hereditary line of Fire Lords.
  • Oma founds Omashu after Shu's death.
  • Past Avatar defeats Hundun and wounds his brother.
  • Earth Kingdom unified under Ba Sing Se's authority; King of Ba Sing Se becomes Earth King.
  • Segregation increases: Mixed bending societies vanish. Lambak Island isolates itself with "Yungib" power.
  • General Wei of Earth Kingdom rises and falls after war with an "impossible enemy".
  • Fire Nation Navy forbidden to fly military colors in Eastern Sea during 22nd Earth King's reign.
  • Avatar Salai and Avatar Gun born.
  • Era of Szeto: Avatar Szeto (Fire Nation) ends noble clan conflicts and restores economy, becoming a renowned administrator. Lady Tienhai (spirit) marries mortal ruler, dies, angering General Old Iron. Oyaluk becomes Chief of Water Tribes.
  • Year 0 of Yangchen's era: Avatar Yangchen (Air Nomads) born at Western Air Temple. Kavik born.
  • c. Year 4 or 5 of Yangchen's era: Hsien, Raitei born.
  • Year 8 of the era of Yangchen: Kalyaan and Kavik get separated from a hunting party, returning after nearly a month, with Kalyaan losing two of his fingers after he opened his mitten to feed the hide to his younger brother. Hunts begin to sour across the Long Stretch region.
  • Year 9 of Yangchen's era: "Platinum Affair" leads to Earth Kingdom isolationism. Fire Nation and Water Tribe follow suit. Limited international trade cities (Bin-Er, Jonduri, Port Tuugaq, Taku) established under "shangs".
  • Year 11 of Yangchen's era: Yangchen meditates into Spirit World, accidentally causes Jetsun's death.
  • Year 12 of Yangchen's era: Kavik's family migrates to Bin-Er. Less than six months after moving to Bin-Er, Kalyaan leaves his job to become an informant.
  • Sometime in or before Year 17 of Yangchen's era: Yangchen masters all four elements and Avatar State. Yangchen deals with General Old Iron, abandoning Tienhaishi. Yangchen deals with phoenix-eel spirits on Ma'inka Island. Yangchen negotiates amnesty for Water Tribe quartermasters. Kavik quits his job at Nuqingaq and Partners, becoming an informant and trying to find his brother, Kalyaan. Zongdu Dooshim of Bin-Er and Zongdu Chaisee of Jonduri plan the Unanimity project to give the shang merchants unlimited leverage over their cities, and over the four nations as a whole. Yingsu, Xiaoyun, and Thapa successfully develop combustionbending abilities for the first time in recorded history, becoming human weapons that can be used as the shangs' Unanimity project. After completing their training on Shimsom Big Island, they are eventually transported to Jonduri.
  • Year 17 of Yangchen's era: Yangchen investigates "Unanimity project" (combustionbenders for shangs). Combustionbenders apprehended in Bin-Er; Yangchen administers the city. Raids on Northern Air Temple (Henshe killed, Thapa freed, Xiaoyun killed, Yingsu faked dead). Chaisee and Thapa plot at Taku Convocation. Yangchen's network infiltrates Taku, raids Iwashi's yacht, discovers Raitei and Hsien (Unanimity survivors). Raitei dies attempting betrayal. Covert battle in Taku, Kalyaan captured. Yangchen confronts Chaisee, Thapa dies. Yangchen abolishes zongdu position, becomes "protector" of shang cities, defusing cold war. Yangchen controls Chaisee's network.
  • Later era of Yangchen: Yangchen signs treaty with Fifth Nation. Makes deals with spirits, many broken after her death.
  • Sometime in 4th century BG: 40th Earth King assassinated by Tieguai the Immortal.

The era of Kyoshi (312 — 82 BG) - Novels
  • 345 BG — Year of the Sheep: Avatar Yangchen dies; Avatar Kuruk born in Northern Water Tribe. Jianzhu, Kelsang born.
  • Sometime between 345 BG and 312 BG: Kuruk accidentally destroys an island while mastering Avatar State. Kuruk battles dark spirits, causing spiritual corruption and depression. Kuruk attempts to kill Koh, the Face Stealer, for stealing Ummi's face.
  • 312 BG — Year of the Dragon: Avatar Kuruk dies; Avatar Kyoshi (Earth Kingdom) born to Jesa and Hark. Earth Kingdom instability (Fifth Nation, Yellow Neck Uprising). Rangi, Yun, Aoma, Suzu, Jae, Mirai born.
  • 310 BG — Year of the Horse: Te Sihung born.
  • 307/306 BG: Kyoshi abandoned by parents in Yokoya, almost starves.
  • 305 BG — Year of the Pig: Kyoshi saved by Jianzhu and Kelsang. Takes Avatar test, leaves early.
  • 304 BG — Year of the Rat: Jianzhu defeats Yellow Necks at Zhulu Pass, ending rebellion. Xu Ping An secretly imprisoned.
  • 303 BG — Year of the Ox: Tan becomes Quin's guard captain.
  • Sometime between 305 and 296 BG: Kelsang destroys Fifth Nation splinter fleet. Tagaka succeeds Tulok as Fifth Nation leader, earns fearsome reputation, defeats Earth Kingdom navy. "Wars of Secrets and Daggers" among Earth Kingdom royal family.
  • 299 BG — Year of the Horse: Jesa and Hark die of fever.
  • 298 BG — Year of the Sheep: Jianzhu and Kelsang falsely identify Yun as Avatar.
  • 296 BG — Year of the Rooster: Fade-Red Devils pirate band wiped out by Fifth Nation.
    • Fall of the Fifth Nation: Yun, Kyoshi, and companions defeat Fifth Nation. Amak killed, Tagaka imprisoned. Kyoshi's unusual bending casts doubt on Avatar identity.
    • Kyoshi revealed as true Avatar after Jianzhu consults Father Glowworm. Yun sacrificed. Kyoshi refuses Jianzhu as teacher. Kelsang killed by Jianzhu protecting Kyoshi. Kyoshi and Rangi flee, join Flying Opera Company.
    • Xu Ping An freed, plans to restore Yellow Necks, killed by Kyoshi in lei tai duel. Lek killed during Rangi's kidnapping.
    • Poisoning of the Earth Sages: Jianzhu poisons Earth Sages, killing many including Hui.
    • Jianzhu killed by Yun in Qinchao.
    • Kyoshi seeks sanctuary at Southern Air Temple, receives vision from Kuruk.
    • Kyoshi mops up Fifth Nation splinter fleets.
    • Kyoshi defeats Emerald Claws daofei.
  • 295 BG — Year of the Dog: Half Fire Nation pig chickens culled due to sickness.
    • Kyoshi takes down Triad of the Golden Wing and Captain Li's corrupt peace officers in Ba Sing Se.
    • Lei Fang forms Fanged Mercenaries.
    • Fire Lord Zoryu invites Kyoshi to Festival of Szeto.
    • Yun holds guests hostage at Fire Nation Royal Palace, kills Lu Beifong and Chancellor Dairin, escalating "Camellia-Peony War".
    • Feud between Saowon and Keohso clans.
    • Zoryu gets decoy Yun to confess conspiracy with Saowon, ending Camellia-Peony War. Lady Huazo escapes.
    • Kyoshi confronts Yun in Yokoya, Avatar mansion destroyed, Yun killed.
    • Kyoshi meets Knowledge Seeker, her animal guide.
  • Sometime after 295 BG: Air Nomads lose spiritual sites. Monk Namthöse attempts Northern Air Temple restriction. Southern Water Tribe questions Northern governance. Tagaka escapes Lake Laogai.
  • Late 290s BG: Fifth Nation raid on Jasmine Island fails, disgracing Erchtei.
  • Sometime between 295 and 293 BG: Earthbending monorail construction begins in Ba Sing Se. Kyoshi forms task force against daofei in Ba Sing Se Lower Ring, supported by Ambassador Quin.
  • 293 BG — Year of the Rat: Kyoshi leaves Ba Sing Se, Rangi stays. Task force becomes "anti-corruption task force" under Earth King.
    • Fanged Mercenaries frame rivals using task force. Mengyao discovers this, Hana plans to frame Mengyao by kidnapping Quin's children.
    • Earth King's task force and Quin's guard search for children.
    • Rangi leaves to inform Kyoshi of turmoil.
  • Sometime between 293 and 270 BG: Kyoshi adopts Yokoya peninsula, trains first Kyoshi Warriors.
  • c. 270 BG — Year of the Pig: Avatar Kyoshi kills warlord Chin and separates Yokoya, founding Kyoshi Island. War of Chin the Conqueror ends. Avatar Day/Kyoshi Day established.
  • Sometime after 270 BG: Peasant uprising in Ba Sing Se spurs Kyoshi to create the Dai Li. Kyoshi forces 46th Earth King to adopt new constitution empowering commoners.
  • 84 BG — Year of the Dragon: Avatar Kyoshi and Disha confront a daofei leader seeking revenge. Disha leaves Kyoshi. Airbending masters refuse to assist Kyoshi.
  • 82 BG — Year of the Horse: Avatar Kyoshi dies at age 230; Avatar Roku of the Fire Nation and his twin brother Yasu are born to a noble family. Fire Lord Sozin is born to Fire Lord Taiso and the Fire Lady Hazei the same day as Yasu and Roku. Malaya is born to the Lambak clan.

Prelude of the Hundred Year War (82 BG — 0)
  • Sometime before 66 BG: The Air Nomads move past their isolationist policy of staying out of the worldly affairs of other nations, and all temples begin to forge ties with foreign governments, hoping that this allows them to reach as many people as they can and provide help where it is needed. Their teachings and philosophies are popular in the Fire Nation, where they are supported by the nobility. However, some are uncomfortable working with the ruling classes of nations, as they are usually people with a lot of worldly prosperity, which goes against their ideals of detachment from the world. The Southern Water Tribe has completely recovered from the poverty it faced during the age of piracy. It enters an age of prosperity and is almost on par with the North. The world is on the brink of a technological renaissance and an industrial revolution, which is made possible by international collaboration fostered by business and academia to solve the most pressing issues of the day. Technological institutes spring up across the world, and scholars, inventors, and educators directly forge ties with one another in the name of progress. In opposition to Fire Lord Taiso's regime, the Outer Islands Rebellions break out in the Fire Nation.
  • 70 BG — Year of the Horse: In an accident, Yasu is lost to the sea at age 12.
  • 67 BG — Year of the Rooster: A sinkhole at a Western Kingdom Trading Company mine swallows an entire village, killing everyone present. Among the dead are the members of an Air Nomad aid mission, including Gyatso's older sister Yama.
  • 66 BG — Year of the Dog: Avatar Roku is confirmed as the Avatar at his sixteenth birthday, and leaves the Fire Nation to master the elements.
    • Roku starts his airbending training under Sister Disha at the Southern Air Temple. He meets and gradually befriends Gyatso.
    • Without Roku as a friend to keep him in check, Sozin starts to descend into extremism. He becomes increasingly obsessed with ancient and obscure sources of power. To aid his quests, he forms a team with Dalisay and Kozaru.
    • Lambak Island conflict: The Lambak Island conflict erupts due to both Sozin as well as the Western Kingdom Trading Company attempting to capture Lambak Island and its power sources. To drive away the Company representatives without causing an international incident, Sozin deceives Roku into aiding his cause. In the process, Roku bonds with Gyatso and Malaya, discovers the secret of the island's power, and is forced to kill Lambak clan chief Ulo in self-defense. Furthermore, Sozin secretly murders Malaya after she realizes the extent of his ruthlessness and bad influence on the Avatar.
    • Lambak Island is officially integrated into the Fire Nation as an autonomous "special region". Sozin de facto turns the island into his private fiefdom, enlisting the Lambak clan as he kickstarts a secret weapons and research program headed by Dalisay.
    • Ta Min becomes a Fire Nation diplomat in Omashu.
  • Sometime after 66 BG: The Night of Silenced Sages takes place. Earth King Jialun sends the Dai Li to round up every single Earth Sage, and their order is abolished. The Earth Sage temples reopen as the Royal Learning Halls, and the few sages who remain are reformed as the Grand Lectors. In response to the purge of the sages, Queen Guo Xun of Omashu becomes even more fiercely opposed to the Earth King. Ba Sing Se and Omashu begin to compete for power more than ever, and the Queen of Omashu does all she can to undermine the Earth King short of starting an all-out war. Both monarchs send spies into each other's courts, and both throne rooms become vipers' nests. The folk hero known as Langzi starts uncovering corrupt people and bringing them to justice across the Earth Kingdom during the exploitative regime of Earth King Jialun. Strange spiritual activity begins at the poles, which is speculated to be a result of nations extending their reach and exploiting natural resources in an era of industrialization, and a steep decline in spirituality across the other nations. Bands of dark spirits rage in the wilderness of the North and South Poles.
  • c. 58 BG — Year of the Horse: Fire Lord Sozin ascends the throne, following the death of his father Taiso.
  • Between 58 BG and 54 BG: Early in Sozin's reign, the royal government wins the last real conflict between the throne and the noble clans, with General Oraso Eiko winning a decisive victory, finally uniting the nation under the throne. After bringing the warring families to heel, Sozin makes great strides toward progress, uplifting the poorest of the nation. Monk Gyatso receives his tattoos and becomes a master airbender. The Northern Passage conflict between the Northern Water Tribe and the Earth Kingdom state of Chenbao threatens to escalate into all-out war after a massive tsunami hits Chenbao's northern coast, with the Water Tribe blaming earthbenders, and the Earth Kingdom blaming waterbenders. Avatar Roku intervenes before the conflict can escalate, supported by airbending masters from the Northern Air Temple. Both sides back down, but their navies remain in the water, ready to act at the first sign of threat from the other side. Following the conflict between the Earth Kingdom and Water Tribe, the governor of Chenbao places a tax on all Water Tribe goods or merchants ships passing through the Northern Passage. There was no practical way to enforce this, and Water Tribe ships avoided taxes with their sailing mastery, but all Water Tribe goods were subsequently considered contraband in the Earth Kingdom. The governor hoped that this development would escalate the situation, petitioning the Earth King for military assistance in enforcing his tax. Using the inventor Nyn Chei's innovations and plans, which use designs originally from the master Southern Water Tribe boatwright Massak, the Fire Nation begins to design a new coal-powered fleet. The construction creates hundreds of jobs for the poorest members of society, but materials for the fleet are scarce, leading to competition over resources with other nations. The beginnings of anti Earth-Kingdom sentiment are quietly stoked by the Fire Lord in the ensuing struggle over resources. The Fire & Air Center of Learning begins construction, funded by those of the Fire Nation nobility who have embraced Air Nomad teachings and wish to see this celebrated with an institute to promote Air Nomad teachings in the Fire Nation. This is eventually supported by all air temples, and plans are drawn up by the Air Nun Anada. Construction is sabotaged by the Guiding Wind, a renegade Air Nomad order who believe that the Air Nomad's growing relationship with the nobility of the other nations is impeding the spiritual growth of all peoples of the world. In response, Fire Lord Sozin seizes the site from the nobility, and entrenches his military guard to protect the local population. He has no intention of withdrawing his forces until the Guiding Wind leaves, but the order has no intention of stopping their plans until construction ended completely. Princess Zeisan of the Fire Nation proposes a political marriage to Khandro, the leader of the Guiding Wind. She announces her intention to give up her wealth and her titles, and live a life of austerity. Fire Lord Sozin almost cannot control his rage, and while Zeisan is earnest, she also wishes to undermine her brother's rule, sensing the corruption growing in her family. Sozin begins to see the Guiding Wind as a direct threat due to their opposition to nobility. It is reported across the Fire Nation that the Guiding Wind is committing violent attacks, which is in direct opposition to their pacifistic principles. Khandro begins to suspect involvement of the Fire Lord or his supporters. Fire Lord Sozin organizes the first Dragon Hunts to regain his popularity with the nobility. Only a few dragons are killed at first, but the nobility embraces the sport with a voracious appetite, and enjoyed the prestige of the title "Dragon". This leads to ethical debates with spiritual leaders. Strange spiritual activity occurs at many dragon death sites, but Sozin dispatches an elite taskforce to deal with this and keep it under wraps from the general population. When a joint Water Tribe entity comes to investigate, they are blamed for any spiritual activity that leaks to the public. The south of the Earth Kingdom faces a number of floods, which devastates small towns and infrastructure. Rather than sending aid, Earth King Jialun offers citizens affected military assistance in exchange for work on the Outer Wall of Ba Sing Se. Many are left with no choice other than to accept. The only group to offer selfless aid are the Air Nomads from the Southern Air Temple. The Fire Nation considers the previously unclaimed Natsuo Island to be its own territory after a cache of ore is discovered there. Earth King Jialun wants the island for himself, and sends his military vessels on training excercises near the island, hoping to goad Fire Lord Sozin into making the first move. The Fire Nation claims an island considered sacred to the Water Tribes, the halfway point between the North and the South. Chieftain Tana from the South finds Fire Nation ships docked at the island, and Chief Skiri of the North discovers what has happened through political channels. The chief is furious, and wants to send a majority of his forces to retake the island. However, he needs the support of the Southern chieftains, and many cannot come to a consensus, not wanting to risk an all-out war with the Fire Nation. The Unity, a massive seafaring vessel funded by the Southern Water Tribe business magnate Tiqriganiannig and built with the accumulated technological knowledge of the four nations, is completed. The vessel sets out on a Grand Tour of the four nations and spearheads a technological renaissance, but is opposed by almost all the ruling bodies of the world, who believe it to be an attempt to deploy spies across the other nations. The Four Nations Summit & Technological Symposium is held in Hari Bulkan, with each nation due to present their new technological advances. Diplomatic tensions rise when crates of valuable meteorite metal from the Fire Nation are stolen from Fire Nation warehouses. Taqukaq of the Northern Water Tribe contacts some of his connections, and trusts them to bring a peaceful resolution to the crisis.
  • 55 BG — Year of the Rooster: Avatar Roku destroys the Crescent Island Fire Temple on the winter solstice while stuck in the Avatar State during his training, activating the nearby volcano. The neighboring islands suffer from seismic instability in the face of the volcano, and many villages struggle in rebuilding from earthquakes, while Avatar Roku personally helps people rebuild. Fire Lord Sozin provides some aid, but explains he cannot resettle people in other parts of the Fire Nation, as the nation lacked excess land to grant to those affected. Locals begin to buy into anti-Earth Kingdom sentiment, resenting their neighbor for not providing them aid or shelter, and point to their greedy claim to Natsuo Island.
  • 54 BG — Year of the Dog: Avatar Roku returns to the Fire Nation after twelve years of travel and marries Ta Min, a diplomat and noblewoman from the capital.
  • 50 BG — Year of the Tiger: Guru Pathik is born.
  • 37 BG — Year of the Rabbit: 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 the throne room of the Fire Nation Royal Palace.
  • Sometime before 12 BG: The Sun Warriors go into total isolation during an age of the world that is beginning to forget the importance of spirituality during rampant industrialization, and the Fire Nation is hunting animals as important to firebending as dragons. The world believes that they completely die out, and those in the Fire Nation are later taught that the Sun Warriors died out "thousands of years" before them.
  • 12 BG — Year of the Dragon: Avatar Roku is killed while fighting a volcanic eruption at age seventy. Avatar Aang of the Air Nomads is born. Bumi of Omashu is born.
  • Before c. 2 — 1 BG: Aang receives his tattoos after inventing the air scooter technique, making him the youngest airbending master in recorded history.
  • c. 2 — 1 BG: 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) - Original Show (Books 1-3) Events
  • 0 AG — Year of the Dragon:
    • Air Nomad Genocide: 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 during the initial attack or later by being hunted down and executed, save for Aang.
    • Simultaneous to the genocide, the Fire Nation launches attacks on the Earth Kingdom and Water Tribes. In the Earth Kingdom, the Fire Army is able to establish a strong foothold, slowly but surely advancing across the continent over the course of the next hundred years.
    • Azulon is born.
  • 15 AG — Year of the Sheep: 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. Yagoda is born in the Northern Water Tribe.
  • 20 AG — Year of the Rat: Fire Lord Sozin dies at age 102; Fire Lord Azulon ascends the throne. The herbalist is born in the Earth Kingdom.
  • Between 20 and 95 AG: Dissident Fire Navy officers organize the Crimson Sails Armada, a pirate and rebel organization opposed to the Fire Nation government.
  • 25 AG — Year of the Snake: Niuan is born in the Fire Nation Capital.
  • 39 AG — Year of the Sheep: Jeong Jeong of the Fire Nation is born.
  • Before 40 AG: The Fire Navy destroys the navies of the Northern and Southern Water Tribes in a series of massive naval battles. This leaves the South unprotected, while the North retreats behind its icy defenses.
  • c. The Fire Nation begins raids on the Southern Water Tribe, destroying its cities and systematically capturing its waterbending population. After years of fighting, Hama becomes the last waterbending defender to be captured and imprisoned at Wolf Cove. A small number of Southern waterbenders is able to survive the raids in hiding and by going into exile.
  • c. 45 AG — Year of the Ox: Iroh is born to Fire Lord Azulon and Fire Lady Illah.
  • 50 AG — Year of the Horse: Arnook of the Northern Water Tribe is born.
  • c. 55 AG — Year of the Pig: Ozai is born to Fire Lord Azulon and Fire Lady Illah.
  • c. 64 AG — Year of the Monkey: Ursa is born to Jinzuk and Rina; the daughter of Avatar Roku.
  • 70 AG — Year of the Tiger: Chey is born.
  • 72 AG — Year of the Dragon: Miyuki is born.
  • 80 AG — Year of the Rat: Wu arrives in Makapu.
  • 81 AG — Year of the Ox: Rini is born.
  • Before 82 AG: Kuei of the Earth Kingdom is born. At age four, his father dies and 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.
  • 83 AG — Year of the Rabbit: Prince Zuko is born to Prince Ozai and Princess Ursa. Jet 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 in Wolf Cove. 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 in Wolf Cove. Ho Tun is born.
  • 87 AG — Year of the Sheep 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.
  • 88 AG — Year of the Monkey: Toph Beifong is born to Lao Beifong and Poppy Beifong of Gaoling.
  • c. 90 AG — Year of the Dog: "The Devastation": Admiral Yueya of the Fire Nation Navy launches a murderous campaign against Jasmine Island to avenge her ancestor Erchtei. The island suffers great damage and heavy loss of life, and worse is only prevented thanks to the efforts of the Jasmine Island protectors as well as a group of Fire Nation soldiers under Prince Lu Ten.
  • 91 AG — Year of the Pig: Koko is born.
  • 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 Wolf Cove in an attempt to kill the alleged last waterbender of the Southern Water Tribe. Chief Hakoda's wife Kya sacrifices herself to save the eight-year-old Katara. After this point, the Fire Nation falsely assumes that the entire Southern waterbender population has been wiped out, and Fire Lord Azulon orders an end of the raids against 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.
    • Princess Ursa conspires with Prince Ozai to kill Fire Lord 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.
  • Between 95 and 99 AG: Ozai signs a secret deal with the Crimson Sails Armada, ending their attacks on the Fire Nation. Fire Army General Onomu tries to defect to the Earth Kingdom with important war plans, triggering a manhunt. After accidentally injuring the son of General Uyanga of the Fire Army, the Earth Kingdom rebel group of Haoran becomes the target of a large-scale manhunt. The chase continues until the insurgents (and a collection of refugees) flee to the abandoned Western Air Temple, where they are cornered by Uyanga's troops.
  • 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.
  • c. 97 AG — 98 AG: Ursa, as "Noriko", marries Ikem, as "Noren", in Hira'a.
  • 98 AG — Year of the Horse: Tom-Tom of the Fire Nation is born to Ukano and Michi.
  • 99 AG — Year of the Sheep:
    • Aang Awakens: Avatar Aang is awakened from the iceberg after one hundred years 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 Wolf Cove, by then a tiny village of the Southern Water Tribe.
    • Zuko's force is ambushed by pirates during the hunt for the Avatar.
    • Zuko and Zhao begin their rivalry after an Agni Kai at Ketu Harbor, a Fire Nation base.
    • The garrison of Ketu Harbor, led by a captain and a scout, engages in raids and counter-raids with nearby pirates.
    • Zuko raids Kyoshi Island in an attempt to capture Aang, causing heavy damage to Suki's village and inspiring some Kyoshi Warriors to join the Great War.
    • Siege of Shen Guan: Despite the intervention of Team Avatar, Fire Nation forces led by Captain Masaru conquer Shen Guan, paving the way to the direct attack on Omashu.
    • Mission to Hegemon's Folly: Fire Army troops led by Captain Masaru try to recover General Wei's ancient writings for the Fire Nation, but are thwarted by Jiang and revolting mercenaries.
    • Mission to the Glacial Temple: Commander Mamushi of the Fire Navy secures an ancient artifact at the South Pole's Glacial Temple, evidently for her own purposes. This causes a Fire Army unit under Sergeant Gyaku to investigate the commander's activities.
    • Prison rig revolt: There is a massive jailbreak at a Fire Nation prison rig for earthbenders, and all inmates escape. The rebels, aided by Earth Kingdom Army troops under Boqin, subsequently capture the prison rig and turn it into a resistance base.
    • 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 before 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 by Jet's Freedom Fighters and the villagers evacuate.
  • 100 AG — Year of the Monkey:
    • 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.
    • Siege of the North: The Fire Nation attempts to capture the Northern Water Tribe's capital Agna Qel'a, 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. 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. La imprisons Admiral Zhao in the Fog of Lost Souls in retaliation for Tui's death.
    • Members of the Northern Water Tribe set out to the Southern Water Tribe to aid them and rebuild, initializing the Southern Reconstruction Project.
    • Princess Azula of the Fire Nation recruits Mai and Ty Lee to hunt down the Avatar.
    • Omashu falls under Fire Nation occupation; Omashu Resistance is formed.
    • Avatar Aang begins his earthbending training with Toph.
    • Jiang's river pirates, aided by Katara, break through a Fire Nation blockade at a village in the southern Earth Kingdom, allowing them to deliver medicine to an isolated community.
    • An attempt to break through Ba Sing Se's Outer Wall, using a giant drill and led by Princess Azula, fails.
    • Fall of Ba Sing Se: Ba Sing Se falls to the Fire Nation through an internal coup d'état led by Princess Azula, assisted by her friends Mai and Ty Lee, 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; Zuko and Aang venture off to the Sun Warriors city to learn firebending from Ran and Shaw.
    • 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.
    • Liberation of Ba Sing Se: The Order of the White Lotus, led by Grand Lotus 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 the 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.
    • Aang vs. 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.

Post-Hundred Year War (100 AG — 171 AG) - Comics & Novels
  • 100 AG — Year of the Monkey:
    • With international support, Fire Lord Zuko initiates a campaign to investigate crimes committed during the Hundred Year War with the goal of bringing at least some perpetrators to justice. A married couple of Fire Nationals -who were among the worst perpetrators of the late war- are turned over to Earth Kingdom authorities by their own daughter, Chihiro.
    • The Harmony Restoration Movement is launched to remove the Fire Nation colonies from the Earth Kingdom.
    • The resistance against Fire Lord Zuko begins, including sabotage, terrorism, assassination attempts, rebellion, and other acts by Fire Nationals opposed to Zuko's policies.
  • 101 AG — Year of the Rooster:
    • 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.
    • Treaty of Yu Dao: The growing 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. This results in the Treaty of Yu Dao, with the Earth Kingdom and Fire Nation allowing the oldest colonies to become autonomous entities.
    • Aang forms the Air Acolytes out of the Official Avatar Aang Fan Club.
    • Unresolved issues relating to the discontinued Harmony Restoration Movement result in violence and tensions in several regions, including the Restorationist–Loyalist conflict in Linsho.
  • 102 AG — Year of the Dog:
    • Zuko, with the help of Team Avatar and his sister, Azula, embark on a search for Ursa, which leads them to her new life in Hira'a. Azula escapes custody during the search for Ursa, and subsequently creates the Fire Warriors, a small rebel group.
    • 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.
    • Ursa returns to the Fire Nation Royal Palace for the first time since her exile.
    • Children in the Fire Nation Capital are being kidnapped by Azula's Fire Warriors, at the time disguised as Kemurikage.
    • 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. Their violent rebellion is defeated and Gilak is killed, but Southern nationalism spreads as a result of this radical movement.
  • c. 102 — 103 AG: An ex-Fire Warrior, Ningka, usurps control of the Crimson Sails Armada and launches a vicious piracy campaign against the Fire Nation, while also threatening international relations. 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 Bending Supremacist Uprising, which is defeated by Team Avatar and the Earthen Fire Refinery's nonbender guards. The remaining Fire Warriors and Azula part ways due to disagreements over their operations.
  • Between 102 — 115 AG: Aang and Zuko establish the United Republic of Nations, a fifth nation with Republic City as its capital. Toph travels the world to teach metalbending before becoming Republic City's first Chief of Police. The Fire Nation gifts a large statue of Aang to Republic City as a symbol of peace and goodwill.
  • Between 102 — 119 AG: Aang and Katara marry and have two children: Bumi, a nonbender, and Kya, a waterbender.
  • 115 AG — Year of the Pig: Gommu is born.
  • 119 AG — Year of the Rabbit: Tenzin, the youngest son of Aang and Katara and the only airbender among their children, is born. Lightning Bolt Zolt is born.
  • 120 AG — Year of the Dragon: Lin Beifong is born to Toph and Kanto. Hiroshi Sato is born. Around the same time, the cabbage merchant founds Cabbage Corp.
  • 126 AG — Year of the Dog: Suyin Beifong, Lin's half-sister, is born, to an unknown father.
  • 128 AG — Year of the Rat: Yakone is placed on trial for his crimes against Republic City. After attempting an escape, he loses his bending to Avatar Aang.
  • 130 AG — Year of the Tiger: 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.
  • 133 AG — Year of the Snake: Tarrlok, the youngest son of Yakone, is born.
  • 134 AG — Year of the Horse: Iroh is born to Izumi.
  • 135 AG — Year of the Sheep: Pema is born. Equalist protester is born.
  • 138 AG — Year of the Dog: Hiroshi Sato founds Future Industries after inventing the Satomobile.
  • 143 AG — Year of the Rabbit: Toph resigns as Chief of Police.
  • 144 AG — Year of the Dragon: Noatak at 14, runs away after defending Tarrlok from Yakone and bloodbending them both.
  • 149 AG — Year of the Rooster: Ryu is born.
  • 151 AG — Year of the Pig: 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.
  • 152 AG — Year of the Rat: Mako is born to San and Naoki. Asami Sato is born to Hiroshi Sato and Yasuko Sato.
  • 153 AG — Year of the Ox: Avatar Aang dies; and Avatar Korra is born to Tonraq and Senna in the Southern Water Tribe. After traveling around the world and becoming a renowned healer in her own right, Kya moves back to the Southern Water Tribe to support her grieving mother. Hong Li is born.
  • 154 AG — Year of the Tiger: Bolin, the youngest son of San and Naoki, is born.
  • 155 AG — Year of the Rabbit: Desna and Eska are born to Unalaq and Malina.
  • c. 156 AG — Year of the Dragon: Wakkanai and Yinuo engineer a new method of desalinating the water around Republic City. With Wakkanai and Yinuo lacking the funds and experience to execute their idea for desalination plants at a massive scale, Wakkanai turns to the young Iknik Blackstone Varrick, a prominent outside investor. Varrick sabotages one of Yinuo's experiments, and uses the resulting explosion to have him barred from further research by city regulators. Varrick helps Wakkanai negotiate a profitable deal with the city, giving her generational rights to the profits from the water treatment facilities. Yinuo falls into ruin. He is forced to return to the Earth Kingdom, where he changes his name to San Ho.
  • 157 AG — Year of the Snake: The Order of the White Lotus visits Korra's family at the South Pole and confirm Korra's claim to be the Avatar.
  • 158 AG — Year of the Horse: Yasuko Sato is murdered during a robbery of the Sato estate by the Agni Kai Triad. Skoochy is born. Zaheer, Ming-Hua, Ghazan, and P'Li attempt to kidnap Korra, but are apprehended by Chief Sokka, Tenzin, Tonraq, and Fire Lord Zuko. The criminals are imprisoned in different, specialized prisons across the world.
  • 160 AG — Year of the Monkey: Mako and Bolin's parents are killed by a rogue firebender. Jinora, the eldest child of Tenzin and Pema, is born
  • 163 AG — Year of the Pig: Ikki, the youngest daughter of Tenzin and Pema, is born.
  • Sometime before 164 AG: A volcano erupts, and devastates the village at its base. Admiral Dalja Ro of the Fire Navy reroutes their ships to rescue civilians and provide medical aid. The government is so impressed that it tasks Dalja with organizing a fleet dedicated to aiding civilians during disasters, which becomes the Fire Nation's official Relief Fleet.
  • 165 AG — Year of the Ox: Meelo, the first son of Tenzin and Pema, is born.
  • 166 AG — Year of the Tiger: Hiroshi Sato attempts to persuade Wonyong Keum to help him improving the Equalist mecha tanks, though Keum finally decided to back out of the deal, much to the annoyance of the Sato family.
  • 167 AG — Year of the Rabbit: Fire Lord Zuko passes the title of Fire Lord to his daughter, Izumi, and becomes an ambassador for peace, taking up the title "Lord" instead. Mako and Bolin leave the Triple Threat Triad and decide to live with Toza in the Pro-bending Arena.

Second Age of the Avatar (171 AG — Present) - Korra Era
  • 170 AG — Year of the Horse:
    • After passing her final firebending test, Korra goes to Republic City in order to begin her airbending training with Tenzin.
    • Anti-Bending Revolution: The Anti-Bending Revolution publicly begins with the destruction of the Pro-bending Arena during an Equalist attack.
    • Amon removes Tarrlok's bending.
    • The Equalists launch an attack on Republic City. In the course of their attack, the insurgents occupy the capital as well as Air Temple Island, and overthrow the United Republic Council. Amon removes the bending of several police officers who were made his prisoners after the battle, including Lin Beifong.
    • Rohan, Tenzin and Pema's second son, is born during the battle.
    • The United Forces' First Division is destroyed by the Equalists' biplane armada upon attempting to take Republic City back.
    • Amon Exposed: Avatar Korra's bending is taken away by Amon during the Equalist victory rally, though she manages to unlock her airbending and expose Amon as a waterbender from the Northern Water Tribe, dealing a strong blow to the support of the Anti-Bending Revolution. Amon flees Republic City with his brother Tarrlok, who kills himself and Amon while crossing the Mo Ce Sea.
    • Avatar Aang's spirit restores Avatar Korra's bending with energybending and passes on that knowledge to her. Korra consequently restores Lin Beifong's bending, as well as the bending of every other innocent person that lost it.
  • 171 AG — Year of the Sheep:
    • Asami Sato assumes control of Future Industries as CEO.
    • Bumi retires from the United Forces and moves to Air Temple Island with Tenzin and his family.
    • The United Republic Council is dissolved in favor of a democratically elected president, the nonbender Raiko.
    • Korra breaks ties with Tenzin and begins her spiritual training with Unalaq.
    • Korra journeys to the heart of the South Pole and re-opens a dormant spirit portal on the winter solstice.
    • Korra finds out the truth about how Unalaq framed his brother to become Chief of the Water Tribes.
    • The Water Tribe Civil War starts.
    • Korra is swallowed by a dark spirit, which causes her to temporarily lose her memory. She later reconnects with the first Avatar, Wan, and regains most of her memories.
    • Jinora leads Korra into the Spirit World.
    • Korra reopens the Northern spirit portal after Jinora's life is threatened by Unalaq.
    • The third known Harmonic Convergence occurs.
    • Unalaq frees Vaatu and becomes the first Dark Avatar after fusing with the spirit of darkness. He purges Raava out of Korra and destroys the light spirit.
    • Unalaq perishes after Vaatu's spirit is cleansed by Korra using Unalaq's own spiritual cleansing technique.
    • Korra starts the Avatar Cycle anew, though she no longer has a connection to the past Avatars.
    • 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 millennia 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 and subsequently frees his teammates Ghazan, Ming-Hua, and P'Li.
    • Korra becomes the first metalbending Avatar.
    • Zaofu is attacked by the Red Lotus in search of Korra.
    • Earth Queen Hou-Ting is assassinated by Zaheer and the Inner Wall of the city is brought down by Ghazan, plunging the Earth Kingdom into chaos.
    • The Red Lotus attacks the Northern Air Temple and threatens to destroy the revived Air Nation if Korra does not surrender herself.
    • P'Li is killed by Suyin.
    • Bolin becomes the second known non-Avatar who can lavabend.
    • 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.
    • Kuvira assembles an army to reunite the Earth Kingdom.
    • Korra rehabilitates at the Southern Water Tribe compound for two years, though still mentally scarred by Zaheer's attempt on her life, she sets out on a journey to reconnect with Raava.
  • 174 AG — Year of the Dog:
    • Wu is crowned the fifty-fourth Earth King.
    • Kuvira announces during Wu's coronation the dissolution of the Earth Kingdom and the monarchy, 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.
    • 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.
    • Hiroshi Sato sacrifices himself in the battle against Kuvira's enormous mecha suit.
    • A new spirit portal emerges in the heart of Republic City.
    • Kuvira surrenders herself and the military of the Earth Empire.
    • Wu plans to abolish the Earth Kingdom monarchy, officially, in favor of democratically elected leaders for the various states, territories and provinces.
    • Iknik Blackstone Varrick and Zhu Li Moon marry.
    • 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.
    • 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.
    • After a trial for her war crimes, Kuvira is sentenced to house arrest in Zaofu three months after her surrender.
    • With Korra openly coming out as bisexual, many queer members of both Water Tribes are also inspired to come out. Chiefs Eska and Desna issue a decree that legalizes same-sex marriage in the Northern Water Tribe, and attend many same-sex weddings to show their support.
  • c. 175 AG — Year of the Pig: After a series of disappearances where he later turns up unharmed in ridiculous circumstances, Varrick goes missing for nearly a month after thinking of a new use for moo-sow milk that can only work in the Spirit World. Lin Beifong institutes the "Varrick Rule" in missing persons cases, where Varrick has to be missing for at least a week before someone can even talk to her about the issue.
  • c. 176 AG — Year of the Rat: On the morning of the final match of the Spring Pro-bending Tournament, Varrick is kidnapped by San Ho and the Terra Triad, who plan to kill him in an explosion at one of Wakkanai's water treatment facilities. As there is minimal evidence at the crime scene and the police are likely to not take the issue seriously, President Moon enlists the help of a team of trusted individuals to save her husband.
  • After 176 AG:
    • The world is shattered by a devastating cataclysm.
    • Avatar Korra dies. A female Earth Avatar is born with a twin.