The intricate timeline of Attack on Titan weaves a devastating pattern: empires rise through the power of the Titans, oppressors become the oppressed, and children inherit the sins of their ancestors. This cyclical violence, often described as a cycle of rebirth, is not just a thematic backdrop but the engine that drives every major conflict. Understanding the historical events that shaped the world of Eldia and Marley reveals why the series' characters are trapped in a loop of hatred, and why breaking free demands unimaginable sacrifice.

The Founding of Eldia and the Rise of Marley

The Myth of Ymir Fritz

Almost two thousand years before the main narrative, a slave girl named Ymir Fritz obtained the power of the Titans after coming into contact with the mysterious Source of All Living Matter. Her transformation granted her the ability to become a massive, godlike being that could shape the land, build roads, and conquer enemies. The ancient Eldian tribe, initially a small and insignificant group, exploited her power to subjugate neighboring clans and erect a sprawling empire. Ymir’s servitude to the first Eldian King, Fritz, cemented a tragic irony: the very power that could have freed her became the tool of her continued enslavement. She bore the king’s children, and upon her death, her soul and powers were split into the Nine Titans, a lineage that would perpetuate violence for millennia. The Founding Titan, inheriting her will, became the cornerstone of Eldian supremacy.

The Eldian Empire’s Expansion

With the Nine Titans under the control of aristocratic families loyal to the Fritz monarchy, the Eldian Empire launched centuries of aggressive expansion. Eldian warriors, capable of transforming into intelligent Titans, crushed every army that opposed them. The empire’s ideology was built on the supposed divinity of Ymir and the racial superiority of the “Subjects of Ymir,” a bloodline connected to the original Titan. Entire nations were erased, and their cultures absorbed or annihilated. This period established the foundation for the global resentment that would later consume the world. The Marleyan people, one of the many groups subjugated, were forced into a position of servitude and cultural erasure, setting the stage for a bitter reversal of fortunes.

The Great Titan War

Seeds of Rebellion

The Eldian Empire’s hegemony did not last forever. Internal strife among the nine Titan-holding families ignited the Great Titan War, a century-spanning conflict that tore the empire apart. The Marleyans, who had long been treated as a conquered underclass, seized the opportunity. Through covert operations and strategic alliances with rebel Eldian factions, they managed to acquire seven of the Nine Titans for themselves. The figure of the Tybur family, a secretive Eldian clan that controlled the War Hammer Titan and held a long-standing grudge against the Fritz king, proved instrumental. The Tyburs collaborated with Marleyan revolutionaries, painting themselves as liberators while maneuvering to reshape the world order.

The Fall of the Eldian Empire

The Marleyan uprising, now armed with Titan power of their own, systematically dismantled the Eldian regime. Major battles ravaged the continental mainland, and the once-unassailable empire crumbled. The 145th King of Eldia, Karl Fritz, chose not to fight to the bitter end. Driven by a profound guilt over his people’s atrocities and an ideology of self-atonement, he secretly colluded with the Tybur family to arrange his empire’s defeat. He gathered as many Eldians as he could and retreated to the remote island of Paradis, where he used the Founding Titan’s power to construct three immense concentric Walls: Maria, Rose, and Sina. Inside these Walls, he mind-wiped the populace, fabricating a history in which humanity had been nearly wiped out by Titans and the Walls were the last bastion of civilization. To the world outside, King Fritz issued a chilling ultimatum: any further aggression against Paradis would be met with the unleashing of the millions of Colossal Titans embedded within the Walls—a doomsday weapon later known as the Rumbling.

The Age of Marleyan Dominance

The Oppression of Eldians

With Eldia defeated, Marley rose as a global superpower. The new order did not bring liberation for the common Eldian, however. Marleyan propaganda recast history, portraying Eldians as monstrous devils who had terrorized the world for centuries. The remaining Eldians on the continent were forcibly relocated to designated internment zones, walled ghettos with squalid living conditions. Within these zones, Eldians were stripped of citizenship, subjected to curfews, and forced to wear identifying armbands—a grim echo of real-world atrocities. Systematic discrimination was enshrined in law, with any Eldian who left the zone without permission facing execution. This state-sanctioned hatred created a new generation of Eldians who internalized their own supposed inferiority, while simultaneously reinforcing the Marleyan sense of righteous vengeance.

The Weaponization of Titan Shifters

Marley did not simply oppress Eldians; it exploited them. Recognizing the military potential of the Titan powers they now possessed, the Marleyan government established the Warrior Program. Young Eldian children were indoctrinated from an early age, trained to become loyal soldiers in exchange for promises of honorary Marleyan citizenship for their families. The most promising cadets were selected to inherit one of the seven Titan powers under Marleyan control: the Armored, Colossal, Female, Beast, Jaw, Cart, and later the Attack Titan, though the latter would be lost on Paradis. This system turned Eldians into living weapons, deployed to conquer other nations and secure Marley’s imperial ambitions. The constant warfare not only expanded Marleyan territory but also perpetuated the global hatred of Eldians, as the world once again witnessed Titans being used as instruments of mass destruction—proof, in their eyes, that the devils of Eldia had not changed.

The Walls of Paradis and the False Peace

Behind the Walls, the Eldian remnant lived in a carefully maintained ignorance. King Karl Fritz’s vow renouncing war had been imprinted on all future inheritors of the Founding Titan through the Fritz royal bloodline, ensuring that his pacifist ideology would persist. The people of Paradis believed they were the last of humanity, surrounded by mindless Titans that roamed the lands beyond. The Military Police Brigade enforced a policy of technological stagnation and suppressed any curiosity about the outside world. Even the Survey Corps, formed to explore beyond the Walls and reclaim lost territory, was treated as a reckless and sacrificial venture. This 100-year peace was a suffocating static loop, a cycle of rebirth that prevented any true progress or reckoning with the past. It was a prison built not just of stone and Colossal Titan bodies, but of lies.

The Rise of the Survey Corps

A Mission Born from Ignorance

The Survey Corps initially existed as a token gesture of humanity’s will to survive. Their early expeditions were catastrophic failures, yielding little more than staggering body counts and fragments of disjointed intelligence. Yet the Corps became a crucible for individuals who could not accept the limits of the Walls. Leaders like Erwin Smith transformed the regiment from a forlorn hope into a disciplined, tactical force dedicated to uncovering the truth. Their mission, though publicly framed as the liberation of mankind from the Titans, was fundamentally a quest to answer a single question: what is beyond the Walls? Every fallen comrade fed a collective desperation that made the Corps both the most dangerous and the most essential branch of the military.

Pivotal Battles and the Search for Truth

The Battle of Trost in 845 was a watershed. Eren Yeager’s emergence as a Titan shifter shattered the military’s understanding of what a Titan could be and provided humanity with a strategic asset they had never possessed. The subsequent female Titan expedition, the clash with the Armored and Colossal Titans that revealed the traitors within, and the desperate charge to retake Shiganshina all served as brutal lessons. Discovery of Grisha Yeager’s basement journals exploded the entire founding myth of Paradis. The Survey Corps learned the truth: they were not the last of humanity; they were a remnant population of a hated race, imprisoned by their own king, while the rest of the world advanced in technology and prepared to annihilate them. This revelation turned the Corps’ mission from battling mindless Titans into navigating a global political nightmare.

The Cycle of Rebirth

The Curse of Ymir and the Repetition of Violence

The concept of a cycle of rebirth in Attack on Titan is literal and metaphysical. The power of the Titans passes from one shifter to the next through consumption, a grotesque form of reincarnation in which memories and ideologies persist. Ymir Fritz’s original subjugation and her love for King Fritz forged a path of suffering that echoed through every generation. Eldians became Titans to oppress the world, then Marleyans used Titans to oppress Eldians, and the hatred between the two peoples spiraled into a self-perpetuating engine of genocide. Characters like Reiner Braun embody this tragedy: raised to believe in a demonic enemy, he slaughtered innocents only to discover their humanity, a realization that shattered his psyche. The cycle is not just political; it is psychological, an inherited trauma that makes enemies see each other only through the lens of past sins.

The Path to the Rumbling

Eren Yeager’s journey from idealistic avenger to architect of global destruction is the ultimate response to this cycle. When diplomacy failed and the world’s nations united in a declaration of war against Paradis, Eren accessed the full power of the Founding Titan through his bond with his half-brother Zeke. The Coordinate, a metaphysical realm where time and space converge, allowed Eren to communicate with Ymir Fritz directly. His refusal to inherit the first king’s pacifist vow and his offer of freedom to Ymir—showing her that she was not a slave but a person capable of choice—unlocked the true horror of the Rumbling. The Wall Titans were set in motion, unleashing a worldwide cataclysm designed to crush every civilization outside Paradis. Eren’s logic was brutally simple: to end the cycle of hatred, one side must cease to exist.

An Ambiguous Liberation

The Rumbling, however, did not simply end the cycle; it transformed it. The global slaughter ignited a civil war within Paradis, pitting the Yeagerist faction, who saw Eren as a savior, against the remnants of the Survey Corps, who could not accept mass murder as a solution. In the final confrontation, the alliance of former enemies—Eldians and Marleyans, warriors and soldiers—fought not just to stop Eren but to demonstrate that the cycle could be broken without annihilation. Eren’s death, and the permanent elimination of the Titan powers from the world through Ymir’s final choice, freed humanity from the immediate threat of the Titans. Yet the story resists a tidy resolution. The world lay in ruins, and the survivors on both sides inherited a legacy of unimaginable pain. Mikasa’s final act of love and the quiet, uncertain peace that followed suggest that rebirth can mean more than repetition; it can also mean a fragile opportunity to choose a different path, even if the scars remain forever.

The historical timeline of Attack on Titan is a brutal masterclass in cause and effect. Every empire that built itself on conquest sowed the seeds of its own destruction. Every act of hatred became a justification for retaliation. The series offers no easy remedies; it shows that stopping the cycle requires not merely understanding the other side, but a willingness to sacrifice the very identities and weapons that have defined the conflict for two thousand years. Whether the world beyond the Rumbling moves forward or stumbles back into old patterns is left open, a testament to the fact that rebirth is never a guarantee—only a possibility.