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A timeline of all events from the Attack on Titan manga.

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.

Prehistory

Year	Event
Unknown	The Fritz family comes into power as the ruling family of the tribe of Eldia.
1003 B1	Ymir, a young slave of the Eldian tribe, gains the power of the Titans from an unknown anomaly, becoming the Founding Titan.
c. 995 B1	The king of the Eldian tribe, pleased with Ymir's power and accomplishments, takes her to bear his children. Ymir Fritz leads the Eldian tribe against Marley at the command of their king.
990 B1	Ymir Fritz defends her king from an assassination attempt at the hands of a Marleyan soldier, choosing to succumb to death from her wound. The king of Eldia feeds Ymir Fritz's corpse to his daughters Maria, Rose, and Sheena, who inherit Ymir's power of the Titans. Ymir Fritz's consciousness survives in the paths, a metaphysical timeless space where she creates the bodies of Titans and carries out the commands of the living royal family through the Founding Titan.
Unknown	Ymir's daughters bestow their power of the Titans unto their grandchildren, leading to the eventual creation of the Nine Titans. The Founding Titan remains with the Fritz family while the eight remaining Titans are inherited by lesser Eldian families subservient to the Founding Titan and the royal bloodline. Those who inherit the power of the Titans are destined to die after 13 years as Ymir did due to a phenomenon called the "Curse of Ymir." The Nine Titans continue to wage war against the nation of Marley, taking control of the continent and gradually transforming the Eldian tribe into the Eldian Empire. Eldia conquers countless other civilizations as well using Pure Titans as cheap weapons of mass destruction. This results in massive casualties and entire cultures being wiped out. Eventually, in-fighting breaks out between the various Eldian families for control over the eight Titans, but the Fritz family, using the power of the Founding Titan, maintains balance. The Ackerman clan, an Eldian bloodline resulted from the Eldian Empire's fiddling with the Subjects of Ymir, becomes the sword and shield of the royal family, remaining close to Eldia's king for generations.
c. 370 B1	Allegedly, Eldia wages war against Marley through Titan assaults at the "Fall of Lago", the "Devastation of Monte", and the "Ravaging of Valle", resulting in the deaths of hundreds of thousands of Marleyans.

History

Year	Event
c. 240	An epidemic leads to a significant drop in the worldwide population. With the power of the Founding Titan, the King of Eldia alters the biology of the Subjects of Ymir to give them immunity, and no Subject of Ymir dies to the epidemic.
Unknown	Eldia becomes allies with Hizuru.
Unknown - c. 743: The Great Titan War	Karl Fritz, the 145th monarch of the Fritz family, inherits the Founding Titan and succeeds his predecessor as the monarch of Eldia. Ashamed of Eldia's history of genocide and civil war, Fritz conspires with the Tybur family, an Eldian house possessing the War Hammer Titan, to bring about Eldia's downfall. The Tybur family fabricates the story of a Marleyan man named Helos to instigate the Eldian in-fighting and serve as a hero for the oppressed people of Marley. Karl Fritz gathers most of the Fritz royal family to Paradis Island, Eldia's last remaining undisputed territory, and moves the capital to that island, abandoning the conflict between the eight other Titan houses. He also invites Asians from the Shogun clan of Hizuru. Some Fritz royals disagree with the King's decision to abandon the war, and remain behind in the mainland. In the King's absence, the other eight Houses wage civil war. The surviving Marleyans took advantage of this and incited a rebellion. The Tybur family is the first to side with the Marleyan uprising. Over the course of the war, the Marleyans succeed in gaining the power of six more of the Nine Titans possessed by Eldia: the Colossus Titan, the Armored Titan, the Female Titan, the Beast Titan, the Cart Titan, and the Jaw Titan. Using the seven Titans, Marley gradually gains control of the continent. King Fritz uses the Founding Titan to create and order countless Colossus Titans to form the three concentric Walls—Maria, Rose, and Sheena—to protect the remnants of Eldia.
c.743	In order to stop the war, King Fritz sends a false message to the people of Marley, demanding that the surviving Eldians must be left alone or the Colossus Titans will "flatten the entire Earth." The Great Titan War ends. The nation of Marley would retain control of a large portion of the world beyond Paradis Island throughout the next century, using the power of the Titans. Hizuru's reputation is tarnished due to their association with Eldia. The Eldians who did not flee overseas would become low-class citizens of Marley, forced to live in internment zones separate from the rest of the population. After gaining control over the mainland, the Marley government promotes the story that Ymir Fritz had gained the Titan's power through a deal with the "Devil of All Earth," who was slain by their hero Helos during the war. King Fritz informs both the Fritz family in Marley and the Tybur family that he has made a vow renouncing war to the Founding Titan, and that there will be no retaliation if and when Marley chooses to enact a final solution against Eldia. However, he asks that he and his people should be given a brief age of peace before their retribution. The King uses the power of the Founding Titan to erase the memories of the Subjects of Ymir. The Subjects successfully forget their history, but minority groups not sharing the majority's common bloodline such as the Ackerman clan 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 down to successors within the royal family. Some time afterward, a chapel is built above the entrance to the cavern.
743	According to the traditional history taught in Paradis Island, this is when the entire human race except for the inhabitants of the island was devoured by the Titans.
Unknown	The Titan Biology Research Society is founded in Marley. After researching the nature of the Titans and the Subjects of Ymir, 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 name the Founding Titan the "Coordinate" of these paths. Plans are made for underground districts within the Walls, but these plans are eventually abandoned at the behest of the Church of the Walls.
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 Island where they are all turned into Pure Titans.
806	January 26 - Grisha Yeager is born to Mr. and Mrs. Yeager in the Liberio internment zone.
809	November 24 - Faye Yeager is born to Mr. and Mrs. Yeager.
c.816	Rod and Uri's father inherits the Founding Titan and succeeds his predecessor as the monarch of Eldia.
817	As young children, Grisha and Faye wander outside of their internment zone. When they are caught, an officer by the name of Eren Kruger punishes Grisha while Faye is taken away by another officer and fed to his dogs unbeknownst to the Yeager family. At the orders of the Marleyan military, Grisha's father tells him the history of the Eldian people.
819	Eren Kruger inherits the Attack Titan from a predecessor.
824	Grisha Yeager joins the Eldian 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 propaganda from "the Owl," an Eldian spy, they make plans to retrieve the Founding Titan from Paradis Island in order to revive the nation of Eldia.
825	August 1 - Zeke Yeager is born to Grisha and Dina Fritz.
c.825	Erwin's father, a grade school teacher within the Walls, 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. Erwin's father 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.
827	February 2 - Frieda Reiss is born to Rod Reiss and his wife.
829	Tom Ksaver inherits the Beast Titan.
c.829	Uri Reiss eats his father, inheriting the Founding Titan and succeeding him as the monarch of Eldia. Kenny Ackerman, a criminal in the underground city of the Walls, is told the history of the Ackerman clan'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 clan. Kenny becomes Uri's right hand man and eventually joins the First Interior Squad. The persecution of the Ackerman clan 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.
831	October 12 - 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 Island. In order to conquer the island without provoking King Fritz, the Marleyans decide to train specially selected Eldian children to make use of the seven Titans in Marleyan possession, becoming Marley Warriors. After hearing of Marley's plans through information from the Owl, Grisha urges Zeke to join the Warriors as a double agent.
832	Zeke learns that the Public Security Authorities are coming close to finding the Eldian Restorationists. On the advice of Tom Ksaver, seven year old Zeke turns his parents in, gaining Marley's trust. Grisha and the Restorationists are arrested by the Public Security Authorities. After torturous interrogation at the hands of the Marleyans overseen by Officer Kruger, the Eldian Restorationists are sent to Paradis Island. Many of the Restorationists, including Dina Fritz, are turned into Pure Titans. Kruger turns against the Marleyans before Grisha was to be killed, revealing himself to be the Owl and an inheritor of one of the Nine Titans. In his Titan form, Kruger kills the soldiers of Marley. Kruger informs Grisha of his past, the nature of the Titan's power and the "Curse of Ymir," and his desire to see the Founding Titan retrieved from the Walls. Grisha reluctantly accepts the duty from Kruger, turning into a Titan and eating Kruger, inheriting 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 of the Survey Corps 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. August 1 - Reiner Braun is born to Karina Braun and her Marleyan lover in Liberio.
c.832-837	Shiganshina District is afflicted with an epidemic. Grisha creates antibodies for the disease, saving many lives in the district. 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. While starting a new family, he provides medical services for the nobility in the interior and gaining information needed to locate the true royal family on Paradis. Keith Shadis' 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	August 7 - Abel Reiss is born to Rod Reiss and his wife.
834	March 22 - Annie Leonhart is born to unnamed parents. November 3 - Armin Arlert is born to Mr. and Mrs. Arlert.
835	January 14 - Florian Reiss is born to Rod Reiss and his wife. January 15 - Historia Reiss is born to Rod Reiss and his mistress Alma. February 10 - Mikasa Ackerman is born to her father and mother. March 30 - Eren Yeager is born to Grisha and Carla Yeager.
c.837	Grisha Yeager identifies the Reiss family as the true royal family and locates the Reiss chapel. However, he chooses to set aside his mission to take the Founding Titan and instead remains with his new family.
842	Frieda Reiss eats her uncle Uri Reiss, inheriting the Founding Titan and succeeding him as monarch of Eldia. Zeke Yeager inherits the power of the Beast Titan from his mentor, Tom Ksaver. April 14 - Gabi Braun is born in the Liberio internment zone.
843	Five additional Warriors are chosen to inherit the power of the Titans: the Female Titan to Annie Leonhart, the Armored Titan to Reiner Braun, the Colossus Titan to Bertolt Hoover, the Jaw Titan to Marcel Galliard, and the Cart Titan to Pieck. The Warriors are sent to war against an enemy nation of Marley, quickly eradicating the opposing forces.
844	Erwin Smith 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 newly awakened power as an Ackerman to kill the third. She is later taken in to the Yeager family. The capital of an enemy nation of Marley is conquered in a single night by hundreds of Titans controlled by Zeke Yeager's Beast Titan.

Story

Year	Event
Year 845: The Fall of Wall Maria	Marley sends out Bertolt Hoover, Reiner Braun, Annie Leonhart, and Marcel Galliard from the Liberio internment zone to commence the Paradis Island Operation. Marcel is eaten by Ymir's Titan after the first night of their journey, and Ymir regains her humanity after having stolen his Jaw Titan power. 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 of command on to Erwin Smith. Before leaving for the interior, Grisha Yeager promises his son Eren that he will one day show him the secrets kept within the basement of their home. After arriving at Wall Maria, Bertolt Hoover as the Colossus Titan breaches the outer gate of Shiganshina District, allowing countless Titans to enter the city and shattering the 100-year long peace within the Walls. Dina Fritz's Pure Titan enters the city, finding and eating Grisha's wife Carla in front of Eren and Mikasa. Reiner Braun as the Armored Titan breaches the inner gate, forcing humanity to retreat to Wall Rose. Grisha Yeager travels to the Reiss Chapel and urges Frieda Reiss to stop the Titan invasion before Carla and his children are killed, but Frieda rejects his pleas. Grisha battles Frieda's Titan and defeats her, taking the Founding Titan from Frieda by devouring her human form. He proceeds to murder all members of the Reiss family but Rod Reiss, who escapes. Grisha takes Eren into a forest where he urges him to return to Shiganshina and enter the basement of their old home, before injecting him with Titan serum. As a Pure Titan, Eren eats Grisha, inheriting both the dormant Founding Titan and the power of the Attack Titan. A few days after Wall Maria's fall, 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."
846	The Royal Government of the Walls enacts a culling in the form of a Wall Maria reclamation expedition. Nearly 20% of the human population perishes. Mr. and Mrs. Arlert attempt to leave the Walls in a hot air balloon, but they are caught and killed by the First Interior Squad led by Djel Sannes. They are later presumed to have died during the culling expedition.
847	Having spent two years researching the royal family, Reiner, Bertolt, and Annie learn of the false monarchy acting as the face of the royal government. Choosing to take their time in their search for the Founding Titan rather than provoking the King of the Walls, the Warriors decide to enlist in the upcoming Training Corps to earn high placements and join the Military Police Brigade, allowing for easy access to the interior where the true royal family would reside. 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 the "Subjects of Ymir" and "Lady Ymir." She attempts to communicate with the Titan but is eventually eaten. Eren begins taking fighting lessons from Annie in the 104th Training Corps.
849	Ilse Langnar's journal is recovered by Levi Ackerman and Hange Zoë during a Survey Corps expedition beyond Wall Rose.
Unknown	Zeke Yeager discovers a method of acquiring new abilities for his Beast Titan by distributing his spinal fluid to Eldian victims. He 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 Biology Research Society, unaware of Zeke's royal lineage, is unable to explain this phenomenon.
Time	Event - Year 850
One Day Before the Battle of Trost	The 104th Training Corps formally disbands after its completion.
Year 850: The Battle of Trost	The Colossus Titan breaches the outer gate of Trost District, resulting in a Titan invasion for the first time in 5 years. Eren Yeager is eaten by a Titan, but emerges in his first Attack Titan form and begins to slaughter Titans in the city, the first time a Titan is seen fighting another Titan within the Walls in public. The 104th Training Corps experience actual combat against the Titans for the first time. Eren uses his Titan powers consciously for the first time, biting his hand to create a huge Titan skeleton to protect Mikasa and Armin, and himself from a cannonball. Marco Bott overhears Reiner and Bertolt discuss plans on breaching the gate, prompting them to disarm and leave him to be eaten by a Titan. Eren uses a giant boulder to seal the breach in Trost's outer gate, giving humanity its first ever victory over the Titans. This also marks the first time humanity has ever retaken land from the Titans.
Time After the Battle of Trost	Event - Year 850
1 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.
2 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.
3 Days	Eren awakens from his coma. Erwin Smith and Levi Ackerman tell Eren of what transpired after the Battle of Trost.
5 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.
6 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.
7 Days	Annie and Reiner kill Sonny and Bean. Annie later presents 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.
8 Days - 1 Month	Under the supervision of the Special Operations Squad, Hange experiments with Eren's Titan abilities.
1 Month: 57th Expedition Outside the Walls	The Survey Corps embarks on the 57th Expedition Outside the Walls out of Karanes District. Annie disrupts the expedition as the Female Titan to search for Eren. Commander Erwin leads her into a Titan Forest, and successfully uses special target restraining weapons to capture her. However, using her shriek to attract Titans to her, she manages to escape, killing four members of the Special Operations Squad in the process. Eren Yeager battles Annie in the Titan Forest but is defeated and kidnapped by Annie. Before she can escape, Mikasa and Levi Ackerman arrive and rescue Eren. The Survey Corps retreat to Karanes District and are ordered to surrender Eren to the Royal Capital. Annie returns to her post at the Military Police Brigade headquarters in Stohess District. 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
1 Day	Survey Corps recruits from the 104th Training Corps are sent into Wall Rose under the supervision of Mike Zacharias.
2 Days	Stohess District raid : 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. 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. Wall Rose invasion: Zeke Yeager invades Wall Rose as the Beast Titan, using his abilities to turn the residents of Ragako into Titans under his control. Invasion Sighted - Mike Zacharias sends Thomas to warn Commander Erwin of the sighting of Titans within Wall Rose, while ordering the Survey Corps members under his command to warn the residents of Wall Rose. Mike encounters the Beast Titan, who cripples him before leaving him to be killed by Titans. 11 Hours After Sighting - Survey Corps teams led by Gelgar and Nanaba rest at Utgard Castle, but they are soon attacked by Titans which can move at night, forcing the Survey Corps veterans and recruits into a fight for survival throughout the night. 12 Hours After Sighting - Thomas arrives in Stohess and warns Erwin Smith, who is being questioned by the Stohess District Mayor for his actions in the Stohess District raid, of the Titan sighting. 16 Hours After Sighting - The Survey Corps members from the Stohess operation arrive in Ehrmich District en route to Utgard. There, Minister Nick reveals the importance of Historia Reiss in uncovering the secret of the Walls. The Survey Corps also receive information that point to Reiner and Bertolt being in league with Annie Leonhart.
3 Days	20 Hours After Sighting - The Beast Titan throws debris from Wall Rose at the Survey Corps at Utgard, killing two veterans, and summons more Titans to attack Utgard before leaving Wall Rose. Ymir transforms into a Titan to protect the remaining recruits at Utgard. The Stohess operatives arrive at Utgard shortly after the break of dawn, saving the recruits at Utgard. Krista Lenz reveals her true identity as Historia Reiss. The Survey Corps meet up with Hannes' Garrison squad, who reveals that there was no breach in Wall Rose. Reiner Braun and Bertolt Hoover reveal their Titan identities and mission to Eren Yeager and subsequently assume their Titan forms as the Armored and Colossus Titans respectively. A battle ensues on Wall Rose. Eren and Ymir are captured by Reiner and Bertolt, who escape to a Titan Forest. Five hours after the battle on Wall Rose, Commander Erwin reunites with the Survey Corps. They set out to rescue Eren and Ymir. Reiner and Bertolt attempt to flee to Wall Maria, but are intercepted by the Survey Corps, who manage to rescue Eren from their grasp. The Smiling Titan appears in front of Eren and Mikasa for the first time since the Fall of Shiganshina. Hannes attacks the Titan, but is killed in front of Eren. Eren unleashes the power of the Founding Titan unknowingly after striking the Smiling Titan's hand. Using this power, Eren commands nearby Titans to devour the Smiling Titan and attack Reiner and Bertolt. The forty surviving soldiers of the operation retreat to Wall Rose. Erwin falls into a coma due to the loss of his right arm. Reiner and Bertolt retreat to Shiganshina District with Ymir. At some unknown time afterward, Ymir is sent away to Marley, leaving behind a letter to Historia. Before she left, Reiner promises Ymir that Historia will be rescued from the future conflicts in Paradis Island.
4-10 Days	Refugees from Wall Rose are sent to the Underground. Several recruits from the 104th Trainee Corps are assigned to the new Special Operations Squad to safeguard Eren and Historia. Historia reveals her past to her comrades. Hange and 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.
10 Days	Erwin awakens from his coma and is informed of the events that transpired during the past week.
11 Days	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.
12 Days	Experiments on Eren's Titan form continue. Eren discovers that he is only able to transform up to 3 times in a row before running out of stamina.
13 Days	After awakening from a shifting-induced sleep, Eren starts to receive memory flashes of Frieda Reiss.
14 Days	On Erwin's orders, Squad Levi abandons their hideout and heads to Trost District.
15 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' cause. Squad Levi successfully captures Djel Sannes, a member of the First Interior Squad.
16 Days	Sannes reveals to Levi and Hange that the Reiss family are the true royal 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. After Erwin receives news about the Reiss family from Nifa, he organizes a plan to locate Rod Reiss so that Historia may be crowned as the true queen of humanity.
17 Days	Levi forcefully convinces Historia to agree to her role as queen. Squad Levi receives Erwin's plan for overthrowing the monarchy. Dimo Reeves arranges for Eren and Historia to be taken by the First Interior Squad so that Rod Reiss can be located. Kenny arrives to collect Eren and Historia, but kills Dimo Reeves to avoid being followed. Erwin is taken into Military Police custody after the Survey Corps is framed for the murder of Dimo Reeves. Before departing, he names Hange to be his successor.
19 Days	Squad Levi tracks the First Interior Squad to Stohess District. Kenny Ackerman's squad ambushes Squad Levi, and a battle breaks out over the streets of Stohess. Hange convinces the Roy of Berg Newspapers to report the truth about the First Interior Squad and the framing of the Survey Corps to the public.
20 Days	Hitch Dreyse and Marlowe Freudenberg join the Survey Corps' cause. The murder of Dimo Reeves by the First Interior Squad is revealed publicly in Trost District, repairing the Survey Corps' reputation. Erwin Smith is brought before King Fritz and the Assembly. As they order him to the gallows, Anka 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, crippling their forces. Hange reunites with Squad Levi with news of the Coup d'état's success. Having learned of the history of the Reiss Chapel, Hange suggests they should search there for Eren and Historia. Eren awakens in the cave below the Reiss Chapel. By placing their hands on his back, Rod and Historia triggers Eren's memories of Grisha's final hours. Darius Zackly begins torturing nobles, learning of their immunity to the Founding Titan.
21 Days	Squad Levi arrives at the Reiss chapel and battles with Kenny's Anti-Personnel Control Squad. Historia refuses Rod's offer of reclaiming the Founding Titan, choosing instead to free Eren. Rod Reiss drinks from the Titan serum shattered by Historia, becoming an enormous Pure Titan. Eren ingests an "armor" serum from Rod's bag, creating a hardened Titan for the first time, which he uses to shield Squad Levi from the collapsing cavern. Erwin Smith reunites with Squad Levi, and they head to Orvud to devise a method of defeating Rod Reiss, who is advancing on Orvud District. With the combined efforts of the Garrison, Eren, and Squad Levi, Rod Reiss' Titan is defeated at Orvud District, with Historia landing the killing blow. Kenny Ackerman is found by Levi outside of the collapsed cavern. He reveals that he is Levi's uncle, and gives Levi a Titan serum he stole from Rod, before dying.
22 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 cave 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 an Executioner from Hell where Trost's outer gate once stood, which begins to clear Titans from Wall Maria. The Survey Corps' increased popularity causes many young soldiers to enlist or reassign. 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 decides that 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.
Two Months	The Battle of Shiganshina District is fought between the Survey Corps and the Warriors of Marley.
Time	Event - Year 850
Two Days Before the Battle of Shiganshina	Erwin Smith holds a meeting with his squad leaders to discuss the upcoming expedition. After the meeting, Levi tries to get Erwin to stay behind to reduce the risk to his life, but Erwin manages to convince him otherwise.
One Day Before the Battle of Shiganshina	The soldiers of Survey Corps are treated to a feast which included meat the night before the expedition to Shiganshina.
Year 850: The Battle of Shiganshina District	Erwin Smith leads over one hundred soldiers of the Survey Corps on an expedition to Shiganshina under the cover of night. The Survey Corps arrive in Shiganshina at dawn. Eren uses his hardening ability to seal the breach in the outer gate. Before the inner gate can be sealed, Zeke as the Beast Titan traps the Survey Corps in Shiganshina with a Titan army, starting a battle between the Warriors and the Survey Corps. Eren and Reiner battle in their Titan forms in Shiganshina. During the battle, the Survey Corps attacks Reiner with Thunder Spears, blowing Reiner's head off. Bertolt transforms into the Colossus Titan above Shiganshina, killing most of Hange's squad in the explosive energy of the transformation. The Beast Titan bombards the Survey Corps to the north with a barrage of stones and boulders. Erwin Smith leads a last ditch frontal charge into the line of fire as a distraction, which results in the complete annihilation of the cavalry, save for one soldier by the name of Floch Forster. Levi successfully ambushes and defeats the Beast Titan, cutting Zeke out of its nape. Before Levi can kill him, Zeke is rescued by Pieck in her Cart Titan form, and the two flee towards Shiganshina. Hange and Squad Levi attack the regenerated Armored Titan. They defeat it with Thunder Spears, with Mikasa landing the finishing blow that blows Reiner out of its nape. Armin Arlert sacrifices himself in a diversionary attack against the Colossus Titan, whom Eren defeats after leaving his Titan form, cutting Bertolt out of its nape. Reiner tells Hange to pass a letter from Ymir to Historia, shortly before Zeke and Pieck arrive to rescue him. The three Warriors flee Shiganshina district. Both Armin and Erwin are found to be alive but on the brink of death, creating a difficult choice as to who should be saved with the Titan serum held by Levi. 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. 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.
Time After The Battle Of Shiganshina	Event
A Few Days	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 Island and realizes that Dina was the Titan that killed his mother. Shortly after the return of the Survey Corps, Queen Historia 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 First King's will 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. The nine survivors of the battle of Shiganshina District are honored in ceremony by Queen Historia.
Under A Year	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. 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 Island.
Year	Event
Unknown	Ymir is restrained and eaten by Porco Galliard, brother of Marcel, who inherits her Jaw Titan. He inherits Ymir's memories, but not Marcel's. Zeke Yeager meets with Kiyomi Azumabito in private, revealing his true allegiance to Eldia. They discuss plans for the revival of the Eldian empire.
851	One year after the Battle of Trost, 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 wall and the shores of the ocean. Marley sends out their first survey fleet to Paradis Island. They are intercepted by the Survey Corps, who intern the soldiers present with the help of Eren and Armin's Titans. The Anti-Marleyan Volunteers on-board defect to the people of the Walls' side, giving them information about Marley and their technology, as well as Zeke's secret plan to save the Eldian people. Other Marleyan soldiers are eventually convinced to lend their aid to Paradis Island.
852	Kiyomi Azumabito of the nation of Hizuru visits the island of Paradis, with the intention of forming an alliance. Kiyomi reveals that Mikasa Ackerman is a long-lost descendant of the Azumabito clan, making her the equivalent of royalty in Hizuru. Kiyomi explains the three conditions needed to protect Paradis island from external invasion. Eren objects to the third condition of maintaining possession of a Titan with royal blood, as it is not only risky, but would mean sacrificing Historia's children for their own survival.
853	A railway line is constructed on Paradis island.
850-854: Marley Mid-East War	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 Paradis Island. None of the ships return. Marley's war with the Mid-East Allied Forces culminates at Fort Slava, a coastal fortress. While the Warriors under Marleyan command besiege the fort, 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 destroys most of the anti-Titan artillery present at Fort Slava, and the Beast Titan tosses artillery rounds at the nearby Mid-East fleet, destroying it. The result of this battle brings an end to the Marley Mid-East War.
Time After the End of the Marley Mid-East War	Event - Year 854
A Few Days	The Mid-East Allied Forces sign a peace treaty with Marley, the victors of the four-year war. A meeting is convened afterward to discuss the global reaction to the Armored Titan's defeat, and Commander Theo 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. Some time after the conclusion of the war, the forces of Marley return to their homeland.
A Few Days - One Month	In order to restore Eldia's reputation in the eyes of the viewing world, the Tybur family offers their support to the Paradis Island Operation, vowing to deal with Paradis Island within one year. Eren Yeager infiltrates Marley using Eren Kruger's identity. He befriends Falco, whom he uses to help deliver letters to his allies. The Tybur family comes to Liberio to make preparations for an upcoming festival of world ambassadors. Willy Tybur meets with Magath, and together they conspire to rid Marley of its troublesome military elite to pave the way for Magath's rise into power.
One Month	Construction works for the festival begin, supervised by Willy Tybur.
Time	Event - Year 854
One Day Before The Raid on Liberio	The night before the festival, Willy Tybur announces that his upcoming stage production will reveal his answer to the worldwide Titan threat.
Year 854: The Raid on Liberio	On the night of the festival, Falco brings Reiner Braun to meet with Eren, who is hiding in a basement behind the festival stage. Willy Tybur publicly reveals the truth of the Great Titan War and labels Eren Yeager, usurper of the Founding Titan, as the greatest threat to world peace. When Willy Tybur declares war against Paradis Island, Eren transforms into the Attack Titan and kills him, before going on a rampage. The younger sister of Willy transforms into the War Hammer Titan and attacks Eren. When the Attack Titan is overpowered by the War Hammer, Mikasa Ackerman uses a barrage of Thunder Spears to bring the Titan down. Eren discovers the War Hammer Titan's true body encased in a crystal below ground and seizes it, but is unable to break the crystal open. The Survey Corps, equipped with anti-personnel vertical maneuvering equipment enter the battle and engage the Marleyan soldiers. The Jaw, Cart, and Beast Titans join the expanding battle shortly after. During the ensuing conflict, the Survey Corps initially face difficulty against the Warriors, however, they gain the upper hand shortly after Armin Arlert uses his Colossus Titan to destroy a docking fleet. Levi neutralizes the Beast Titan, and the Cart Titan is defeated by an attack led by Jean. The Jaw Titan fights aggressively against Eren, but is also defeated. Eren uses the Jaw Titan's powerful jaws to crack open the younger sister of Willy's crystal, inheriting the War Hammer Titan. Eren then prepares to eat the Jaw Titan, but is stopped by the Armored Titan, who rescues Galliard before collapsing. Eren and Mikasa reunites with Armin and the rest of the Survey Corps aboard their getaway airship. Gabi and Falco also board the airship, where Gabi shoots and kills Sasha. They are brought to Zeke Yeager aboard the airship, who is revealed to be on the side of the Paradis Island Eldians all along. The Survey Corps proceed to make their escape from Liberio.
Time After the End of the Raid on Liberio	Event - Year 854
Unknown	A funeral is held for the eight soldiers, including Sasha Blouse, who died during the Raid on Liberio. A Global Alliance Army is formed to prepare a retaliation against Paradis Island. They plan to conduct a scorched-earth operation in six months. Yelena and the Anti-Marleyan Volunteers pass the Titan serums that they stole from Marley to Dot Pixis, but laments being unable to procure the knowledge to create those serums. Eren Yeager is arrested and placed in an underground cell on account of his insubordination. Zeke Yeager is placed under house arrest in a Forest of Giant Trees, and kept under close scrutiny by Levi. His Anti-Marleyan Volunteers are also placed under house arrest.
One Month	Gabi and Falco escape custody of the Paradis military, fleeing into the wilderness, before coming into contact with the Blouse family. Historia Reiss is revealed to be several months pregnant, the father a laborer at her orphanage. Floch Forster and Survey Corps recruits loyal to Eren's cause leak the news of his arrest to the public, leading to protest and disarray. The Survey Corps has Floch's cell arrested. Yelena admits to Pixis that she had secretly met with Eren, legitimizing the Volunteers' arrest. A group of Survey Corps recruits plant a bomb to assassinate Zackly, who was looking to have Eren eaten. The same day, Eren Yeager uses his Titan powers to escape his cell, and his followers are released by sympathetic jailers. Eren meets with Floch's group, and decides to find Zeke. The military initiate a full-scale search for Eren. Pieck successfully infiltrates the Walls once more. Pixis announces the plan to begin negotiations with the Yeagerists, putting Zackly's assassination aside. The Blouse family, with Gabi and Falco, are treated to diner by Niccolo. The Survey Corps arrive at the same restaurant shortly after to question him. Gabi reveals she is a Marleyan warrior and that she killed Sasha to Niccolo, making him hit Falco with a wine bottle. The Survey Corps breaks up the conflict, and Niccolo reveals that Zeke's spinal fluid had been inside numerous wine bottles served by Marleyan workers to many in the military elite, including the one Falco was hit by. Yeagerists enter the restaurant, taking Survey Corps soldiers captive. The Yeagerists, who have refused Pixis's invitation to negotiate, demand Hange to take them to Zeke's location. Meanwhile, Eren meets with Mikasa and Armin, but the discussion goes awry and both of the latter are also taken captive as per Eren's orders. Zeke attempts to escape from Levi by transforming the Survey Corps guarding him into Titans. However, Levi defeats Zeke after killing all the Titans and captures him again. As Levi rides back to the Walls, Zeke detonates a Thunder Spear, catching both Levi and himself in the resulting blast. Before Zeke can succumb to his wounds, he is saved when a pure Titan stuffs him inside of its belly, allowing Ymir Fritz to rebuild his body in the unknown lands. The Yeagerists stop by the 109th Training Corps training camp in Shiganshina to get more followers among the trainees, badly beating Keith Shadis in the process. A group led by Floch then have Hange lead them to Zeke. They find Zeke emerging from a Titan's carcass, and prepare to rendezvous with Eren in Shiganshina. Meanwhile, Hange escapes with Levi's body into a river. The Yeagerists label everyone who consumed Zeke's spinal fluid with red armbands. Yelena visits the Survey Corps soldiers in their cell and informs them of the euthanasia plan. Eren visits Gabi to negotiate, however Pieck sneaks in and holds Eren at gunpoint. She then pretends to be on the side of Eldia, promising to reveal the location of the Marleyan infiltrators. They are taken to the roof where the Jaw Titan emerges, Eren narrowly avoiding getting eaten before transforming.