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A timeline of all events from the Attack on Titan manga and non-canon spinoffs intended to take place in the same storyline.

Prehistoric events are followed by "B1", indicating that they predate Year 1 of the given calendar system used in the Attack on Titan world. Historical events and story events preceded by "c." are approximations based on given information and are not to be considered exact dates, and may be subject to change as new information is given. Event descriptions preceded by "[NC]" are derived from spinoff material that is meant to take place in the canon universe but is not considered canon within the main storyline.

Prehistory

Year	Event
1003 B1	Ymir Fritz comes across the "source of all organic material". Through this source, she gains the power of the Titans, becoming the Founding Titan. With her powers, she is able to turn her subjects into mindless Titans that she can control. The Fritz family comes into power as the royal bloodline over humanity, destined to remain unbroken for the next 2,000 years.
990 B1	For reasons unknown, Ymir Fritz dies 13 years after inheriting her power. Her "soul" is split between nine Titan inheritors, with the Founding Titan belonging to the Fritz family and the eight remaining Titans leading clans subservient to the Founding Titan. The Titans wage war against the nation of Marley, the ancient nation that dominated the land, taking control of the continent and establishing the nation of Eldia. Those who inherit the power of the Titans are destined to die after 13 years as Ymir did due to a phenomena called the "Curse of Ymir".
Unknown	The Ackerman family, a non-Eldian bloodline and "byproducts of Titan science", becomes the sword and shield of the royal family, remaining close to the monarchy for generations. Eventually, in-fighting breaks out between the various families subservient to the Fritz bloodline for control over the eight Titans, but the power of the Founding Titan maintains some balance in the land of Eldia.

History

Year	Event
Unknown - 743	The 145th King of the Fritz family eats a previous monarch, inheriting the Founding Titan and succeeding them as the monarch of Eldia. He decides to move the capital of Eldia to the island of Paradis and abandon the conflict between the eight other Titan houses. In the King's absence, the surviving people of Marley instigate a civil war against the Eldians. The Great Titan War begins. The Marleyans succeed in stealing seven of the nine Titans possessed by Eldia, which they use to gain control of the continent. Eldia loses much of its territory, and the worldwide population is greatly reduced.
743	The 145th King gathers most of the Fritz royal family to the island of Paradis, Eldia's last remaining undisputed territory. Some Fritz royals disagree with the King's decision to abandon the war, and remain behind in Marley. The King uses the Founding Titan to order tens of millions of Colossus Titans form the three concentric Walls Maria, Rose, and Sheena to protect humanity. In order to stop the war, the 145th King sends a message to the people of Marley, demanding that the surviving Eldians must be left alone or the Wall Titans will "flatten the entire Earth". Other wealthy citizens of Eldia join in the mass retreat, but only half of the ships sailing across the sea survive the journey, arriving at the island of Paradis. The nation of Marley retains control of the world beyond the island of Paradis throughout the next century, living in refinement. Those of the nation of Eldia who cannot or choose not to flee overseas become low-class citizens of Marley, forced to live in the Liberio Internment Zone separate from the Marleyan peoples until Marley obtains the Founding Titan, after which Marley plans to turn the Eldian citizens into a Titan army. The Great Titan War ends. After gaining control over the mainland, the Marley government promotes the historical falsehood that the Eldian Empire had committed genocide and eugenic rape against the people of Marley and other non-Eldian races of the world for the past 1,700 years. They furthermore spread the myth that Ymir Fritz had gained the Titan's power through a deal with the "Earth Devil". Once the Eldian refugees gather inside the Walls, King Fritz announces to the Fritz family in Marley that he has made a vow renouncing war to the Founding Titan ensuring that it will not be used to begin future conflicts. The King uses the power of the Founding Titan to erase humanity's memories. The majority Eldian race successfully forgets their history, but minority groups not sharing the majority's common bloodline such as the Ackerman family and the Asian clan are unaffected by the mind wipe. Many of the minority groups swear to secrecy at the King's request and gain noble status, but the Ackerman and Asian groups give up said status, turn against King Fritz, and are hunted down. For the safe-keeping of the Founding Titan, the royal family lives in hiding as the noble Reiss family while another bloodline takes the place of the Fritz family as a false monarchy. The 145th Fritz King, now the First Reiss King, creates an underground cavern where the Founding Titan can be passed on to successors within the royal family. Some time afterwards, a chapel is built above the entrance to the cavern. Plans are made for underground districts, but these plans are abandoned at the behest of the Church of the Walls.
Unknown	The Titan Chemistry Research Society is founded in Marley. After researching the nature of the Titans and the Eldians, they determine that the power of the Titans is carried across "paths" invisible to the eye, with all "paths" coordinating at the Founding Titan. The people of Marley rename the Founding Titan as the "Coordinate".
760	[NC] Angel Aaltonen is born. [NC] Carlo Pikale is born to Jorge Pikale and his wife. [NC] Sorum Humé is born.
763	[NC] Corina Ilmari is born.
778	[NC] Angel Aaltonen creates the first prototype of vertical maneuvering equipment. [NC] A large Titan enters Shiganshina District due to Titan cultists opening the outer gate. Many citizens of Shiganshina District, including Angel's assistant Corina, are killed in the attack, but the Titan is eventually drawn out of the district by Angel. [NC] Kuklo is birthed out of the corpse of his mother, left behind in the Titan's vomit. [NC] Sorum Humé sacrifices himself to save an expedition of the Survey Corps by killing Mammon, becoming the first human to ever kill a Titan. [NC] After the Royal Government places a ban on Survey Corps activity and orders for the disbanding of the Survey Corps, Commander Jorge Pikale leads an illegal expedition to test Angel's vertical maneuvering equipment. It is a success and Jorge is praised as a hero. The Survey Corps is saved from total disbanding but is prohibited from embarking on further expeditions.
c.780	A homeless Eldian girl is given the name "Ymir" by the leader of a cult of Ymir Fritz. The girl joins the cult and becomes a figure of worship.
c.785	The cult of Ymir is found by the Public Security Authorities of Marley. They are led through Marley in chains and are exiled to the borderline of Paradis where they are all turned into a mindless Titan.
791	[NC] Kuklo is purchased from a freak show in Mitras by the nobleman Dario Inocencio. He befriends the noble's daughter Sharle Inocencio, who teaches him human speech and history.
793	[NC] After a raid on Inocencio Manor in which Titan cultists murder Dario Inocencio, Kuklo and Sharle escape from Inocencio Manor. [NC] The Royal Government lifts the ban on Survey Corps expeditions. Carlo Pikale, son of Jorge Pikale, becomes the first Commander of the reformed Survey Corps. [NC] Kuklo sneaks aboard a Survey Corps wagon, hoping to see a Titan and prove he is not one of their kind. He is discovered by Commander Carlo and aids in the Survey Corps's retreat. He is later taken into Military Police Brigade custody, where he meets Cardina Baumeister of the noble Baumeister family. Sharle speaks with Commander Carlo on Kuklo's behalf. He contacts Jorge, sending Sharle to the Industrial City where she becomes an apprentice to Xenophon Harkimo, assisting him in his work improving Angel's vertical equipment. When Kuklo and Cardina are exiled out of Shiganshina in secret, they plan to escape to Naraka, a city rumored to exist beyond the Walls in the far north. During their escape, they are rescued by Jorge Pikale. [NC] Jorge leads Kuklo and Cardina to the Industrial City where Kuklo tests out an improved vertical equipment design. After Kuklo and Cardina complete their training, they join the Survey Corps as field testers of finalized vertical equipment. On an expedition beyond the Walls, Kuklo and the vertical equipment testers slay Ogre, the Titan that killed Kuklo's father fifteen years prior.
806	Grisha Yeager is born to Mr. and Mrs. Yeager. [NC] Elliot Gurnberg Stratmann is born.
809	Faye Yeager is born to Mr. and Mrs. Yeager.
817	As young children, Eldians Grisha Yeager and his sister Faye Yeager wander outside of the Liberio Internment Zone. When they are caught, an officer by the name of Eren Krueger punishes Grisha while Faye is taken away by another officer and fed to dogs. At the orders of the Marleyan military, Grisha's father tells him the history of the Eldian people.
819	Eren Krueger inherits the "Attack Titan" from a predecessor along with the power of the Titans.
824	Grisha Yeager joins the Eldia Restorationists after learning the truth of his sister's death. He meets Dina Fritz, the last member of the Fritz bloodline in Marley. After receiving information, unaware of its nature as false propoganda, from "the Owl", an Eldian spy, claiming that Ymir Fritz maked great advancements for the land of her subjects with the Founding Titan, they make plans to retrieve the Founding Titan from Paradis in order to revive the nation of Eldia.
825	August 1 - Zeke Yeager is born to Grisha and Dina Yeager. Grisha makes plans to incorporate Zeke into the mission to obtain the Founding Titan.
c.825	Mr. Smith, a grade school teacher, tells his curious son Erwin Smith about his suspicions that humanity's memories were erased when the Walls were built. Erwin tells this to his fellow students, and the theory is overheard by the Military Police Brigade. Mr. Smith is arrested and is later killed after torture, and his death is covered up as an accident in a distant town. Erwin realizes the reality of what happened, and becomes determined to discover the truth to his father's ideas. [NC] Lyla Remus and Rene Browning, colleagues of Mr. Smith, attempt to build a flying machine to see the world beyond the Walls. When the Military Police Brigade attacks during their flight, Rene is killed by gunfire before their machine is shot down by Garrison cannonfire, killing Lyla.
827	Frieda Reiss is born to Rod Reiss and his wife. [NC] Rita Iglehaut is born.
c.829	Uri Reiss eats his father, inheriting the Founding Titan and succeeding him as the monarch of Eldia. Kenny Ackerman is told the history of the Ackerman family's persecution. He attempts to assassinate the true king Uri Reiss, but fails. Uri chooses to forgive Kenny and offer his apologies for the crimes committed against the Ackerman family. Kenny becomes Uri's right hand man and eventually joins the First Interior Squad. The persecution of the Ackerman family ends. Kenny Ackerman discovers his little sister Kuchel Ackerman, a brothel worker in the Underground, has become ill and died. Within the Underground, he raises her son Levi Ackerman for an unspecified amount of time before leaving him.
830	[NC] Carly Stratmann is born to Elliot Gurnberg Stratmann and his wife.
831	Dirk Reiss is born to Rod Reiss and his wife.
c.830-832	The Marley government turns its attention to the natural resources abundant in Paradis. In order to conquer the island without a direct declaration of war, the Marleyans offer to train specially selected Eldian children to make use of the seven Titans in Marleyan possession. After hearing of the Marleyans' plans thanks to information sent from the Owl, a double agent within the Marleyan military, Grisha urges Zeke to join the warriors of Marley as a double agent.
832	At the age of seven, Zeke turns against the Eldia Restorationists. Grisha and the Eldia Restorationists are arrested by the Public Security Authorities. After torturous interrogation at the hands of the Marleyans overseen by Officer Krueger, the Eldia Restorationists are sent overseas to Paradis. Many of the Restorationists, including Dina Yeager, are turned into mindless Titans. Grisha is spared in order to humor Officer Gross, whom Grisha recognizes as the man who killed Faye, but Krueger turns against the Marleyans, revealing himself to be the Owl and an inheritor of one of the nine Titans. In his Titan form, Krueger attacks the soldiers of Marley. After disposing of the evidence, Krueger informs Grisha of his past, the nature of the Titan's power and "Ymir's Curse", and his desire to see the Founding Titan retrieved from the Walls. Grisha reluctantly accepts the duty from Krueger. Krueger informs Grisha of Marley's plans to turn the Eldians into a Titan army or to destroy them with the Founding Titan, and urges him to save "Armin" and "Mikasa". Krueger is eaten, and Grisha receives the power of the Attack Titan. Grisha transforms for the first time and uses the Attack Titan to safely reach the Walls. Some time later, Keith Shadis discovers Grisha Yeager outside the Walls of Shiganshina District in a state of amnesia. He takes him into Shiganshina and teaches him of human life within the Walls. Shiganshina District is afflicted with an epidemic. Grisha creates antibodies for the disease, saving many lives in the district.
c.832-835	The 11th Commander of the Survey Corps is killed beyond the Walls. The position of Commander is given to Keith Shadis. Grisha Yeager marries Carla, a tavern keeper from Shiganshina. Keith Shadis's reputation is heavily damaged after the Survey Corps base beyond the Walls is overrun by Titans. Erwin Smith presents his plans for the long-distance enemy scouting formation to Commander Keith, but his idea is rejected at the time.
833	Abel Reiss is born to Rod Reiss and his wife.
834	March 22 - Annie Leonhart is born to Mr. Leonhart and his wife. November 3 - Armin Arlert is born.
835	January 15 - Historia Reiss is born to Rod Reiss and his mistress Alma. February 10 - Mikasa Ackerman is born to Mr. and Mrs. Ackerman. March 30 - Eren Yeager is born to Grisha and Carla Yeager. Florian Reiss is born to Rod Reiss and his wife.
842	Frieda Reiss eats her uncle Uri Reiss, inheriting the Founding Titan and succeeding him as monarch of Eldia. Zeke Yeager is chosen to inherit the power of the Beast Titan. Gabi is born in the Liberio Internment Zone. [NC] Rita Iglehaut enlists the Training Corps.
843	Reiner Braun is chosen to inherit the power of the Armored Titan.
844	Nicholas Lovof tasks Levi Ackerman, Furlan Church, and Isabel Magnolia to find incriminating files on Lovof's business with Lang Company and to kill Erwin Smith, who carries the files. Erwin Smith encounters Levi Ackerman in the Underground and offers to pardon his crimes if he joins the Survey Corps. Keith Shadis decides to finally implement Erwin Smith's scouting formation into an expedition beyond the Walls. On this expedition, Furlan and Isabel are killed by Titans. Erwin convinces Levi to fight for the Survey Corps after Levi nearly takes Erwin's life. In her home, Mikasa Ackerman is abducted by human traffickers after her parents are killed. She is rescued by Eren Yeager, who kills two of the traffickers. Mikasa uses her awakened power as an Ackerman to kill the third. She is later taken in to the Yeager family. [NC] Rita Iglehaut's Training Corps disbands. Rita becomes a recruit in the Garrison.
845	The month of Grisha Yeager's 13th and final year as the Attack Titan approaches. Keith Shadis steps down from his position as Commander of the Survey Corps after a devastating expedition with fewer than twenty survivors, passing the rank on to Erwin Smith. The Marleyans send out four of their Eldian warriors, Bertolt Hoover, Reiner Braun, Annie Leonhart, and Marcel, from one of their settlements known as the "hometown" to destroy humanity and retrieve the Founding Titan from the royal family. Marcel is eaten by Ymir's Titan, and Ymir regains her humanity after having stolen his Titan power. Bertolt as the Colossus Titan breaches the outer gate of Shiganshina District, allowing Titans supposedly drawn in by Annie as the Female Titan to enter into the city and starting the fall of Wall Maria. Carla Yeager is eaten by Dina Yeager's mindless Titan. Reiner as the Armored Titan breaches the inner gate. Humanity is forced to retreat to Wall Rose. Eren Yeager vows to exterminate the Titans. Grisha Yeager travels to the Reiss Chapel and urges Frieda Reiss to stop the Titan invasion before Carla and his children are killed, identifying himself as an Eldian before the Reiss family, but Frieda rejects his pleas. Grisha's Titan battles Frieda's Titan, and Frieda is killed. Grisha steals the Founding Titan and murders all members of the Reiss family but Rod Reiss, who escapes. Grisha travels to the refugee center where Eren and Mikasa are brought. Grisha and Keith Shadis hear of Carla's death. Grisha takes Eren into a forest where he gives him the power of the Titans, urging him to return to Shiganshina and enter the basement of their old home. As a mindless Titan, Eren eats Grisha, inheriting the dormant Founding Titan and the power of the Attack Titan. Keith later finds Eren unconscious in the forest and brings him back to the refugee center. [NC] Quinta District, the western district of Wall Maria, is overrun by Titans before the evacuation of its civilians can complete. Half of the population is isolated in the district, and Rita Iglehaut becomes the leader of the district. Rod Reiss visits his illegitimate daughter Historia Reiss, planning on taking her in to his family. Kenny Ackerman stops them, killing Historia's mother Alma for her role in staining the reputation of the Reiss family. Rod stops him before he kills Historia, and gives her the alias "Krista Lenz". [NC] Six months after the fall of Wall Maria, Quinta is overrun by Titans falling in to the district from atop Wall Maria, and the district is abandoned.
846	The Royal Government enacts a culling in the form of a Wall Maria reclamation expedition. Nearly 20% of the human population perishes. [NC] In an expedition beyond Wall Rose, Taki gets separated from the rest of the Survey Corps and encounters a group of surviving soldiers who had gotten separated from an expedition beyond Wall Maria several years ago. After spending a night with the survivors, a woman named Kelly gives her her findings from the old world beyond the Walls. Taki accepts the findings, setting out to return to civilization.
847	The 104th Training Corps begins. Kenny Ackerman creates the Anti-Personnel Control Squad.
848	On the 34th Expedition beyond the Walls, Ilse Langnar encounters a Titan who speaks of "Subjects of Ymir" and "Lady Ymir". She attempts to communicate with the Titan but is eventually eaten. Eren begins taking fighting lessons from Annie.
849	Ilse Langnar's journal is recovered by Levi Ackerman and Hange Zoë.
Unknown	Zeke Yeager discovers a method of acquiring new abilities for his Beast Titan by distributing his spinal fluid to Eldian victims. Zeke's Beast Titan gains the ability to turn these Eldians into Titans with a scream and can control these Titans even in the absence of sunlight. The Titan Chemistry Research Society, unaware of Zeke's royal lineage, is unable to explain this phenomenon.

Story

Time	Event - Year 850
One Day Before the Battle of Trost	The 104th Training Corps formally disbands after its completion.
The Battle of Trost	The 56th Survey Corps expedition beyond the Walls sets out in the early morning. Bertolt breaches the outer gate of Trost District and Titans enter the city. Eren Yeager is eaten by a Titan, but emerges in his Titan form and begins to slaughter many Titans. Evacuation of the city is temporarily stopped due to Dimo Reeves's shipments, but Mikasa Ackerman persuades him to allow civilians through the inner gate first. Trainee evacuation becomes difficult as the supply depot of gas is overrun by Titans, but with the help of Eren's Titan the depot is retaken and trainees evacuate. Eren emerges from his exhausted Titan and is taken into the custody of the Garrison. The Garrison technical crew creates a harpoon net to temporarily cluster the Titans around the north gate of the district, lessening casualties. The 56th expedition is ended prematurely when Commander Erwin Smith receives news that Trost District is under attack. The Survey Corps retreats to assist the Trost military. Armin Arlert vouches for Eren's life to Garrison Captain Kitz Weilman. Commander Dot Pixis arrives in Trost and collaberates with Armin in a plan to take back Trost with Eren's Titan. After announcing the operation plan to the soldiers of Trost, Eren accompanied by the Garrison elite soldiers travels to a boulder within the district in order to seal the breach. Marco Bott overhears talk between Reiner and Bertolt of their identity as Titans and their concern for the plan to seal the breach. Together with Annie, they take away Marco's vertical equipment and leave him for dead. He is soon afterwards killed by a Titan. Eren's Titan temporarily loses control and incapacitates itself, but is revived when Armin speaks to Eren directly through the nape. Using the boulder, Eren closes the breach and Trost District is saved. Eren's overuse of his Titan leaves him in a coma. The Survey Corps returns to the district in the late afternoon and aids in retaking the city.
Time After the Battle of Trost	Event - Year 850
One Day	After nonstop cannon-fire, all but two Titans are eliminated from Trost District. The remaining two, later named Sonny and Bean, are taken into the Survey Corps' custody for Hange Zoë's studies.
Two Days	The Garrison and Training Corps work to gather the bodies of fallen soldiers in the district to prevent a secondhand disaster epidemic. Jean Kirstein finds Marco Bott's corpse.
Three Days	Eren awakens from his coma. Erwin Smith and Levi Ackerman tell Eren of what transpired after the Battle of Trost.
Five Days	Eren is held on trial before a Military tribunal judged by Commander-in-Chief Darius Zackly. He is eventually given over to the custody of the Survey Corps.
Six Days	Eren joins the Survey Corps under the supervision of the Special Operations Squad, with whom he would later test his Titan shifting abilities over the next month. Hange Zoë tells Eren of her experiments with Sonny and Bean.
Seven Days	Annie kills Sonny and Bean, later presenting Marco's vertical equipment at an inspection to throw off suspicion. Twenty-one trainees of the 104th Training Corps join the Survey Corps. Annie Leonhart joins the Military Police Brigade in Stohess District.
Eight Days - One Month	Under the supervision of the Special Operations Squad, Hange experiments with Eren's Titan abilities.
One Month	[NC] The day before the 57th Expedition Outside the Walls, Hitch Dreyse gives Annie a missing persons report for Carly Stratmann, the daughter of Elliot Gurnberg Stratmann. After strenuous investigation, she discovers Carly is involved in the manufacturing and distribution of the illegal drug coderoin. As Carly requests, she is cleared of her charges and is allowed to move to Wall Rose to start a new life. The Survey Corps embarks on the 57th Expedition Outside the Walls out of Karanes District. Annie disrupts the expedition as the Female Titan, invading the right flank of the expedition to search for Eren. After finding Armin and sparing his life, Armin, Reiner, and Jean attack her to stall for time on Eren's behalf, but Reiner secretly informs her of Eren's true location in the expedition formation.. She is nearly captured when Commander Erwin leads the Survey Corps into a Titan Forest with special target restraining weapons on standby. Using her shriek to attract Titans to her, she escapes the Survey Corps' capture and kills four members of the Special Operations Squad. Eren Yeager battles her in the Titan Forest and is defeated, but he is rescued by Mikasa and Levi Ackerman. The Survey Corps retreat to Karanes District and are ordered to surrender Eren to the Royal Capital. The Survey Corps begins to suspect that Annie Leonhart is the Female Titan. Erwin Smith devises a plan to capture her in Stohess District.
Time After the 57th Expedition	Event - Year 850
One Day	Survey Corps recruits from the 104th Training Corps are sent into Wall Rose under the supervision of Mike Zacharias.
Two Days	Zeke Yeager, now a war-chief of the Marley warriors, invades Wall Rose as the Beast Titan, using his newly discovered abilities to turn the residents of Ragako into Titans which he can control. Invasion Sighted - Mike Zacharias sends out Thomas to warn Commander Erwin of the sighting of Titans within Wall Rose. He orders the Survey Corps members under his command to warn the residents of Wall Rose. Mike encounters Zeke before he is killed by Titans. Unknown Time After Sighting - In Stohess District, the Survey Corps attempts to quietly capture Annie Leonhart, but she transforms into a Titan. Eren's Titan battles Annie's Female Titan, causing great destruction in the district and over 100 civilian deaths. After failing to escape the district, Annie encases herself in a crystalline substance to avoid capture. Wall Sheena is damaged in the battle, revealing a Titan in the Wall. Erwin Smith is brought before the Stohess District Mayor to answer for his actions. Minister Nick is interrogated by Hange Zoë after the Wall Titan is concealed before the sunlight can hit it. Five Hours After Sighting - Sasha Blouse rescues a small girl from a Titan in her village. Sasha reunites with her father, bringing news of the Titan sighting to the people of Wall Rose. Seven Hours After Sighting - Nanaba's west team begins to ride alongside Wall Rose to locate a breach. Eight Hours After Sighting - Thomas arrives in Ehrmich District, warning citizens of the impending evacuation of Wall Rose. Commander Pixis is informed in Trost District of the Titan sighting. Nine Hours After Sighting - Gelgar's south team arrives at Ragako, discovering Mrs. Springer trapped in her home as an emaciated and malformed Titan. The Garrison 1st Division under the command of Captain Weilman and Rico Brzenska holds an eastern line of defense to prevent the spread of Titans. The Garrison counter-measures unit under the command of Captain Hannes investigates Wall Rose for any signs of a breach. Eleven Hours After Sighting - Survey Corps teams led by Gelgar and Nanaba rest at Utgard Castle. Titans arrive at the scene soon afterwards. Zeke passes by Utgard as he heads towards Wall Rose. The Survey Corps veterans and recruits cooperate in dispatching as many Titans as possible throughout the night. Twelve Hours After Sighting - Erwin Smith is questioned by the Stohess District Mayor for his actions. During the meeting, Thomas arrives in Stohess and warns Erwin Smith of the Titan sighting. Survey Corps members from the Stohess operation set out for Ehrmich District. Sixteen Hours After Sighting - The Stohess operatives arrive in Ehrmich District, bringing Minister Nick along to persuade him to reveal information on the Walls. They receive information that raises suspicions among the Survey Corps that Reiner and Bertolt are in league with Annie Leonhart. Seventeen Hours After Sighting - The Stohess operatives head to Utgard Castle to begin their search for a breach.
Three Days	Twenty Hours After Sighting - Zeke leaves Wall Rose as the Survey Corps at Utgard continues to battle with the Titans. After all the older soldiers are killed, Ymir transforms into a Titan to save the remaining recruits at Utgard. The Stohess operatives arrive at Utgard shortly after the break of dawn. Krista Lenz reveals her true identity as Historia Reiss. The Survey Corps leaves the ruins of Utgard, heading to the summit of Wall Rose. They meet up with Hannes' Garrison squad, who reveals that there was no breach in Wall Rose after all. Reiner Braun and Bertolt Hoover reveal their Titan identities and mission to Eren Yeager. A battle ensues on Wall Rose. Eren and Ymir are captured by Reiner and Bertolt, who escape to a Titan Forest. Eren attempts to get answers from Reiner and Bertolt, but yields little results. Commander Erwin meets with Commander Pixis in Trost to discuss the recent Titan invasion. The Military Police Brigade agrees to assist the Garrison and Survey Corps in the investigation of Wall Rose. A messenger brings news to the commanders of Reiner and Bertolt's identities as Titans. Five hours after the battle on Wall Rose, Commander Erwin reunites with the Survey Corps. They set out to rescue Eren and Ymir. In a battle within Wall Maria, Eren is rescued by the Survey Corps. As he reunites with the Dina Yeager's Titan, he unleashes the Founding Titan unknowingly after striking Dina's Titan hand, causing Titans to kill Dina and attack Reiner and Bertolt. The forty surviving soldiers of the operation retreat to Wall Rose and Erwin falls into a coma due to the loss of his right arm. Reiner and Bertolt retreat to Shiganshina District with Ymir. At some point afterwards, Ymir is sent away to Marley, leaving behind a letter to Historia. Reiner promises Ymir that Historia will be rescued from the future conflicts in Paradis.
Four Days to Ten Days	Refugees from Wall Rose are sent to the Underground. The new Special Operations Squad is relocated to an isolated area. Historia reveals her past to her comrades. Hange and recruit Connie Springer return to Ragako to investigate the mysterious event. They realize that the residents of Ragako were the Titans that had invaded Wall Rose. Hange relocates Nick to Trost. Wall Rose is declared Titan-free. Refugees from the Underground are sent back to their homes after anarchy nearly breaks out.
Ten Days	Erwin awakens from his coma and is informed of the events that transpired during the past week.
Time After Erwin's Awakening	Event - Year 850
One Day	Minister Nick is captured and interrogated by the First Interior Squad, who kill him. Learning of his death, Hange begins to suspect a plot against the Survey Corps. She later tells Squad Levi of her suspicions. They decide to continue with their current plans while confronting any forces that would oppose them. Erwin Smith is summoned to the Mitras chancellery to speak with the Assembly.
Two Days	Experiments on Eren's Titan form continue.
Three Days	After awakening from a shifting-induced sleep, Eren starts to receive memory flashes of Frieda Reiss.
Four Days	By Erwin's orders, Squad Levi abandons their hideout and heads to Trost District.
Five Days	Squad Levi discovers that Dimo Reeves is in league with the First Interior Squad. After some negotiation, Reeves agrees to aid the Survey Corps's cause. Squad Levi successfully captures Djel Sannes, a member of the First Interior Squad.
Six Days	Levi and Hange torture Sannes and learn of the true royalty of the Reiss family. They send Nifa to bring news of this to Erwin immediately. In Trost, Erwin Smith and Dot Pixis begin to plot against the Royal Government. Erwin receives news of the Reiss family's royalty from Nifa. He organizes a plan to locate Rod Reiss so that Historia may be set up as the true queen of humanity and the Royal Government's actions against the Survey Corps may cease. Eren recalls in a dream a conversation between Ymir and Bertolt regarding the nature of Titans. He tells Hange of this memory, who in turn immediately heads out to speak to Erwin of the matter.
Seven Days	Levi informs his squad of Historia's royalty and forcefully convinces Historia to agree to her role as queen. Squad Levi receives Erwin's plan for overthrowing the monarchy. Dimo Reeves sets up Eren and Historia to be taken by the First Interior Squad so that Rod Reiss can be located. Kenny arrives and captures Eren and Historia, killing Dimo Reeves. Hange and Erwin discuss the implications of Eren's dream, theorizing on the nature of Titans and humans with Titan power. Erwin is taken into Military Police custody after the Survey is framed for the murder of Dimo Reeves. Before departing, he declares Hange to be his successor should he be unable to return to service.
Nine Days	Squad Levi tracks the First Interior Squad to Stohess District. Kenny Ackerman's squad battles Squad Levi. Hange convinces the Roy of the Berg Newspaper to report the truth of the First Interior Squad to the public and improve the Survey Corps’s reputation.
Ten Days	Hitch Dreyse and Marlowe Freudenberg join the Survey Corps's cause. The true intentions of the Military Police are revealed publicly in Trost District. Roy agrees to report the event to the rest of the public, changing the Survey Corps's reputation for the better. Erwin Smith is brought before King Fritz and the Assembly. As they order him to the gallows, Anka Rheinberger enters the court bringing news that Wall Rose has fallen. When the nobles refuse to allow refugees into Wall Sheena, Darius Zackly intervenes, arresting the nobles and dethroning Fritz. Squad Levi attacks the headquarters of the First Interior Squad to learn of Eren and Historia's location. Hange reunites with Squad Levi bringing news that King Fritz has been dethroned and the Survey Corps has been saved. Having learned of the history of the Reiss chapel, Hange suggests they should search there for Eren and Historia. Eren awakens in the Reiss Chapel underground, where Rod and Historia had taken him. Eren's receives the memories of Grisha's final hours. Rod Reiss tells Eren and Historia the story of Grisha's arrival at the chapel and the destruction that ensued. Darius Zackly begins torturing nobles, learning of their immunity to the Founding Titan. Erwin Smith leads the Survey Corps to the Reiss Chapel.
Eleven Days	Squad Levi arrives at the Reiss chapel and battles with Kenny's Anti-Personnel Control Squad. Rod teaches Eren and Historia the history of the Reiss family, and Rod gives Historia the chance of reclaiming the Founding Titan from Eren. After hearing of the nature of the Founding Titan, Kenny turns against Rod. Historia refuses Rod's offer, choosing instead to free Eren. Rod Reiss drinks from the shattered Titan serum, becoming a mindless Titan. Squad Levi rescues Eren and Historia, and as the underground cavern collapses, Eren ingests an armor serum and shields Squad Levi. Kenny Ackerman escapes the collapse, and his squad is killed. Rod Reiss's Titan heads for Orvud District. Erwin Smith reunites with Squad Levi, who head to Orvud to set up a method of defeating Rod Reiss. Rod arrives at dawn, and his Titan is defeated by Historia. Kenny Ackerman is found by Levi outside of the collapsed cavern. He gives Levi a Titan serum he stole from Rod before the collapse, and he dies soon afterward.
Twelve Days	Historia Reiss is ceremonially crowned Queen of the Walls.
Time After the Crowning of Historia	Event - Year 850
Under Two Months	The nobles from the Assembly are imprisoned and members of the Military take their places. Contraband formerly possessed by the First Interior Squad is used by the Survey Corps to create new technology, such as the Thunder Spears. Fragments of glowing stone from the Reiss Chapel underground are used for sources of light, increasing productivity and allowing for nighttime scouting missions to plot out a route to Shiganshina District. Queen Historia brings many orphans from the Underground to the surface world for adoption. Eren's new hardening ability is used to create a Titan guillotine where Trost's outer gate once stood. The Survey Corps's increased popularity causes many young soldiers to enlist or reassign.
Two Months	A council of military leaders decides that Levi Ackerman should be entrusted with Kenny's Titan serum. Zeke arrives in Shiganshina District, meeting Reiner and Bertolt. After a battle with Reiner, he orders that rather than heading out to rescue Annie Leonhart, they will remain in Shiganshina District to await the arrival of the Survey Corps in order to retrieve the Founding Titan from Eren. Squad Levi visits Keith Shadis to learn of his involvement with Grisha Yeager. Keith tells them of his past with Grisha. Erwin Smith leads over one hundred soldiers of the Survey Corps on an expedition to Shiganshina under the cover of night. Pieck, a quadrupedal Titan warrior, spies on their movements and reports it to the other warriors in Shiganshina. At dawn, the Survey Corps arrives in Shiganshina and Eren uses his hardening ability to seal the breach in the outer gate. Before the northern gate can be sealed, Zeke traps the Survey Corps in Shiganshina, starting a battle between the Titans and the Survey Corps. As Levi leads the Survey Corps north of Wall Maria in an attack against Zeke, Eren and Reiner battle in their Titan forms. During the battle, the Survey Corps attacks Reiner with Thunder Spears, destroying his nape and Reiner's head. Reiner calls Bertolt in to initiate a last resort attack, but Bertolt stops upon seeing Reiner injured. Armin Arlert attempts negotiation with Bertolt to no avail, and Bertolt transforms into the Colossus Titan, engulfing Hange Zoë, Moblit Berner, and several Survey Corps members in the explosive energy of the transformation. Eren is incapacitated after his attempt to stop the Colossus Titan's advance to the north Wall. Meanwhile, while Zeke bombards the Survey Corps to the north with a barrage of stones and boulders, causing Commander Erwin Smith to lead a last ditch frontal assault into the line of fire as a distraction for Captain Levi's advance against Zeke. The recruits under Armin Arlert and Jean Kirstein's command are badly injured after attempting to battle the Colossus Titan. Commander Erwin's attack results in the complete annihilation of the cavalry, save for one soldier by the name of Floch. Levi attacks Zeke and defeats him, but Zeke is taken away by the Pieck. Levi begins in a desperate attack against Zeke's Titans while the last soldier searches the battlefield for other survivors. Within the district, Armin notices a weakness in the Colossus Titan and chooses to exploit it, waking up Eren. The other recruits attack Reiner, who has lost all memory of the previous events of the battle, and Sasha Blouse is injured. Hange returns to the battle to assist the recruits, and Mikasa defeats the Armored Titan. Armin Arlert sacrifices himself in an attack against the Colossus Titan, whom Eren defeats after leaving his Titan form. After Zeke rescues Reiner, Eren notices that Armin barely survived the event and asks Levi for the Titan serum. However, Floch brings Erwin to Levi, creating a difficult choice as to who should be saved. Ultimately it is decided by Levi that Armin will be given the serum. Armin, in his new Titan form, eats Bertolt Hoover, and Erwin Smith dies. After Armin is told of the events leading to his receiving of the serum, Eren, Mikasa, Levi, and Hange investigate the basement of the Yeager household, where they discover three books left by Grisha detailing his past in Marley and his knowledge of the Eldian-Marleyan conflict. After investigating the basement, the nine surviving members of the Survey Corps return to Trost District. Eren and Mikasa are detained for assaulting their superiors. In his dreams, Eren begins to see his father's memories of his arrival at Paradis and realizes that Dina was the Titan that killed his mother. He later recounts his dreams and memories to Armin, who transcribes them in a book while visiting Eren's cell. Shortly after the return of the Survey Corps, Queen Historia Reiss arrives in Trost District and reads Ymir's letter. Eren and Mikasa are released from their imprisonment early with Commander-in-Chief Darius Zackly's approval, and a meeting is held to discuss the findings from the basement. Eren realizes a loophole in the Founding Titan involving touching a royal-blooded Titan as he did with Dina, but chooses not to speak of it out of concern for Historia's fate. The meeting concludes with the decision to make the basement revelations public knowledge, distributed by the Berg Newspapers. The nine survivors of the battle of Shiganshina District are honored in ceremony by Queen Historia.
Over Two Months	The Titan guillotine in Trost District is used to clear all Titans from Wall Maria. Upon the warriors' return to Marley, the government postpones their mission to obtain the Founding Titan. When the loss of two Titans becomes publicly known, the Mid-East Allied Forces declare war on Marley. Ymir is restrained and eaten by Galliard, brother of Marcel, who inherits her Jaws. He inherits Ymir's memories, but not Marcel's.
Time After the Battle of Trost	Event - Year 851
Unknown	Near the end of the winter months, it is announced that Wall Maria has been made completely Titan-free. Due to the large influx of Titans over the course of five years, very few Titans remain beyond the Walls on Paradis.
One Year	Eldian citizens begin to repopulate Shiganshina District. The Survey Corps sets out beyond Wall Maria for the first time in six years, reaching the borderline and the shores of the ocean.
Year	Event
851-854	Marley slowly gains control over the seas in its war with the Mid-East Allied Forces, though half of the outdated navy is lost through the course of the war. Meanwhile, the Allies develop anti-Titan artillery to gain a significant advantage on land conflicts. Over the course of three years, 32 scouting ships are sent from Marley to the island of Paradis. None of the ships return.
854	Marley's war with the Mid-East Allied Forces culminates at Fort Slava, a coastal fortress. The warriors under Marleyan command besiege the fort but are unable to send in any Titans due to the anti-Titan artillery present. Gabi, one of the warrior cadets, succeeds in putting the weaponry out of commission, giving Galliard the chance to enter his Titan form, "Jaws", and charge the fortress' defenses alongside Pieck's "Cartman". Zeke uses his Beast Titan's power to drop parachuting Eldians over Fort Slava, turning them into Titans as an airstrike. Reiner's Armored Titan joins Galliard in destroying the anti-Titan artillery present at Fort Slava, and the Beast Titan tosses artillery rounds at the nearby Mid-East fleet, but the Armored Titan is heavily damaged in the attack. The Mid-East Allied Forces sign a peace treaty with Marley, the victors of the four-year war. A meeting is convened afterwards to discuss the global reaction to the Armored Titan's defeat, and Commander Magath concludes that the technological progress of the world is rendering the power of the Titans obsolete. Zeke proposes that the Founding Titan must be reclaimed as soon as possible for Marley to gain full mastery of the Titans while Marley develops conventional weaponry to boost its outdated military. Zeke is informed of the 32 ships that have gone missing near Paradis. Recalling the four Titans present on the island, Zeke proposes that Eren Yeager's Attack Titan as well as another individual with the power of the Titans are responsible for the ships' disappearances. Some time after the conclusion of the war, the forces of Marley return to their homeland.