Important Events
~125,000 BCE
Around 125,000 BCE, the Forerunners built the crown jewel of their civilization, an artificial world that served as the center of all Forerunner governance, Maethrillian.
~500 Mya
Sometime long before the time of the Forerunners, the Precursors created the Domain, a repository of all knowledge in the universe. The exact date is unknown, and while some sources say it was created 500 million years ago, others say it has existed for billions of years.
~15 Mya
Around fifteen million years ago, the Forerunner race was created by the Precursors in an effort to make a new species that could assume the Mantle of Responsibility.
~10 Mya
Ten million years ago, the Precursors, the species that populated the galaxy with intelligent life including Forerunners, determined the Forerunners were a failed experiment and decided to remove them from the Milky Way galaxy.
~107,445 BCE
The birth of the Flood is actually a series of events that can be traced to a time period around 10,000 years prior to the firing of the Halo Array in 97,445 BCE.
~107,445 BCE - 106,445 BCE
After the emergence of the Flood on ancient human worlds around 107,445 BCE, human civilization was desperate to expand their territory away from Flood-controlled regions of space. As part of this expansion, humans clashed with Forerunner-populated worlds, sparking a war between the two species.
~106,538 BCE
Sometime prior to the end of the Human-Forerunner Wars, ancient humans discovered a Precursor stasis chamber containing a creature they called the Primordial. The creature, along with the stasis chamber, was taken to Charum Hakkor where is was interrogated, teaching the humans on the origins of the Flood.
~106,498 BCE - 106,445 BCE
The Battle of Charum Hakkor was one of the final battles of the Human-Forerunner Wars and also one of the largest, spanning over fifty years and likely consuming millions of lives.
~98,445 BCE
After losing political power to the Master Builder and the entire Builder rate following the end of the Human-Forerunner Wars, the Didact placed himself in exile within a cryptum on Nomdagro, which was later moved to Erde-Tyrene.
~98,395 BCE
The end of the Human-Forerunner War, along with the political fight afterwards that led to the Exile of the Didact, spurred much debate within Forerunner leadership about the right course of action to defend civilization and the galaxy against the Flood, should they return.
~97,745 BCE
Around 97,745 BCE, nearly nine-thousand years since the Flood disappeared from the galaxy during the Human-Forerunner Wars and three-hundred years before the Great Purification, the Flood were first observed at the edges of the galaxy on the planet Seaward, a Forerunner colony world.
~97,745 BCE - 97,445 BCE
The Forerunner-Flood War was a military engagement between the Forerunner species and the Flood that took place over approximately three-hundred years from 97,745 BCE until 97,445 BCE.
~97,495 BCE
The release of the Primordial was an unintended consequence of the test-firing of a Senescent Halo, Installation 07, by the Master Builder and Mendicant Bias in the Charum Hakkor system during the Forerunner-Flood War, approximately fifty years prior to the end of the war and the Great Purification.
~97,455 BCE
Following the Didact’s self-imposed exile one thousand years prior after losing the political battle over the Forerunner defense plan against the Flood, the Didact is resurrected from his cryptum on Erde-Tyrene by Forerunner Manipular Bornstellar Makes Eternal Lasting, and humans Chakas and Riser.
~97,455 BCE
The Battle of Janjur Qom was a brief conflict between the San’shyuum and Forerunners on the quarantined San’shyuum homeworld of Janjur Qom several years prior to the firing of the Halo Array during the Great Purification in 97,445 BCE.
~97,455 BCE
After the Revival of the Didact and his exploration of the Charum Hakkor system with fellow Forerunner Bornstellar Makes Eternal Lasting and humans Riser and Chakas, the Didact and crew traveled to the quarantined San’shyuum homeworld of Janjur Qom to try and unlock more memories in their quest for understanding.
~97,454 BCE
The Fate of Maethrillian was a large-scale but brief battle between the Forerunners and the Halo Array under command of Mendicant Bias several years prior to the firing of the halos during the Great Purification in 97,445 BCE.
~97,454 BCE
In the aftermath of the Fate of Maethrillian and destruction of the Forerunner ecumene, Zeta Halo implemented it’s security measure designed to prevent the ring from falling into enemy hands and performed a slipspace jump into another system and put itself on a collision course with a nearby planet.
~97,450 BCE
After the Master Builder captured the Didact over Janjur Qom, he decided to dispose of the Didact on a derelict Forerunner ship with a handful of other political prisoners in an area of Flood-controlled space known as a Burn.
~97,445 BCE
The Battle of the Greater Ark was one of the final battles of the Forerunner-Flood War and saw the decimation of almost all remaining Forerunner forces just prior to the firing of the Halo Array during the Great Purification in 97,445 BCE.
~97,445 BCE
The behavior of the Ur-Didact following his encounter with a Gravemind and return to the Forerunner civilization became more erratic and harder for the IsoDidact and Librarian to cope with as the Forerunner-Flood War continued.
~97,445 BCE
The Great Purification was the final event of the Forerunner-Flood War, purging the entire Milky Way galaxy of all sentient life, including Forerunners, the Flood, and any other species that may have survived the Flood infestation.
~97,300 BCE
Over one-hundred years after the Great Purification, the few Forerunners remaining on the Lesser Ark became aware that the firing of the Halo Array may have had a detrimental effect on the Domain, and proceeded to the former Forerunner capital of Maethrillian to attempt to restore it.
Important Events
~125,000 BCE
Around 125,000 BCE, the Forerunners built the crown jewel of their civilization, an artificial world that served as the center of all Forerunner governance, Maethrillian.
~500 Mya
Sometime long before the time of the Forerunners, the Precursors created the Domain, a repository of all knowledge in the universe. The exact date is unknown, and while some sources say it was created 500 million years ago, others say it has existed for billions of years.
~15 Mya
Around fifteen million years ago, the Forerunner race was created by the Precursors in an effort to make a new species that could assume the Mantle of Responsibility.
~10 Mya
Ten million years ago, the Precursors, the species that populated the galaxy with intelligent life including Forerunners, determined the Forerunners were a failed experiment and decided to remove them from the Milky Way galaxy.
~107,445 BCE
The birth of the Flood is actually a series of events that can be traced to a time period around 10,000 years prior to the firing of the Halo Array in 97,445 BCE.
~107,445 BCE - 106,445 BCE
After the emergence of the Flood on ancient human worlds around 107,445 BCE, human civilization was desperate to expand their territory away from Flood-controlled regions of space. As part of this expansion, humans clashed with Forerunner-populated worlds, sparking a war between the two species.
~106,538 BCE
Sometime prior to the end of the Human-Forerunner Wars, ancient humans discovered a Precursor stasis chamber containing a creature they called the Primordial. The creature, along with the stasis chamber, was taken to Charum Hakkor where is was interrogated, teaching the humans on the origins of the Flood.
~106,498 BCE - 106,445 BCE
The Battle of Charum Hakkor was one of the final battles of the Human-Forerunner Wars and also one of the largest, spanning over fifty years and likely consuming millions of lives.
~98,445 BCE
After losing political power to the Master Builder and the entire Builder rate following the end of the Human-Forerunner Wars, the Didact placed himself in exile within a cryptum on Nomdagro, which was later moved to Erde-Tyrene.
~98,395 BCE
The end of the Human-Forerunner War, along with the political fight afterwards that led to the Exile of the Didact, spurred much debate within Forerunner leadership about the right course of action to defend civilization and the galaxy against the Flood, should they return.
~97,745 BCE
Around 97,745 BCE, nearly nine-thousand years since the Flood disappeared from the galaxy during the Human-Forerunner Wars and three-hundred years before the Great Purification, the Flood were first observed at the edges of the galaxy on the planet Seaward, a Forerunner colony world.
~97,745 BCE - 97,445 BCE
The Forerunner-Flood War was a military engagement between the Forerunner species and the Flood that took place over approximately three-hundred years from 97,745 BCE until 97,445 BCE.
~97,495 BCE
The release of the Primordial was an unintended consequence of the test-firing of a Senescent Halo, Installation 07, by the Master Builder and Mendicant Bias in the Charum Hakkor system during the Forerunner-Flood War, approximately fifty years prior to the end of the war and the Great Purification.
~97,455 BCE
Following the Didact’s self-imposed exile one thousand years prior after losing the political battle over the Forerunner defense plan against the Flood, the Didact is resurrected from his cryptum on Erde-Tyrene by Forerunner Manipular Bornstellar Makes Eternal Lasting, and humans Chakas and Riser.
~97,455 BCE
The Battle of Janjur Qom was a brief conflict between the San’shyuum and Forerunners on the quarantined San’shyuum homeworld of Janjur Qom several years prior to the firing of the Halo Array during the Great Purification in 97,445 BCE.
~97,455 BCE
After the Revival of the Didact and his exploration of the Charum Hakkor system with fellow Forerunner Bornstellar Makes Eternal Lasting and humans Riser and Chakas, the Didact and crew traveled to the quarantined San’shyuum homeworld of Janjur Qom to try and unlock more memories in their quest for understanding.
~97,454 BCE
The Fate of Maethrillian was a large-scale but brief battle between the Forerunners and the Halo Array under command of Mendicant Bias several years prior to the firing of the halos during the Great Purification in 97,445 BCE.
~97,454 BCE
In the aftermath of the Fate of Maethrillian and destruction of the Forerunner ecumene, Zeta Halo implemented it’s security measure designed to prevent the ring from falling into enemy hands and performed a slipspace jump into another system and put itself on a collision course with a nearby planet.
~97,450 BCE
After the Master Builder captured the Didact over Janjur Qom, he decided to dispose of the Didact on a derelict Forerunner ship with a handful of other political prisoners in an area of Flood-controlled space known as a Burn.
~97,445 BCE
The Battle of the Greater Ark was one of the final battles of the Forerunner-Flood War and saw the decimation of almost all remaining Forerunner forces just prior to the firing of the Halo Array during the Great Purification in 97,445 BCE.
~97,445 BCE
The behavior of the Ur-Didact following his encounter with a Gravemind and return to the Forerunner civilization became more erratic and harder for the IsoDidact and Librarian to cope with as the Forerunner-Flood War continued.
~97,445 BCE
The Great Purification was the final event of the Forerunner-Flood War, purging the entire Milky Way galaxy of all sentient life, including Forerunners, the Flood, and any other species that may have survived the Flood infestation.
~97,300 BCE
Over one-hundred years after the Great Purification, the few Forerunners remaining on the Lesser Ark became aware that the firing of the Halo Array may have had a detrimental effect on the Domain, and proceeded to the former Forerunner capital of Maethrillian to attempt to restore it.
Evo-014's Summary ~15 Mya - ~97,445 BCE
In the annals of cosmic history, a chapter unfolded that forever altered the fate of the Milky Way. The majestic Forerunners, masters of an era spanning an awe-inspiring fifteen million years, held dominion over the galactic tapestry, their influence echoing across countless star systems. Yet, even their formidable might met its match in the relentless onslaught of the enigmatic Flood. In a harrowing turn of events, the Forerunners were compelled to wield the ultimate weapon: the ethereal Halo Array, a celestial symphony designed to quell the tides of chaos. Alas, the price of salvation was steep, as the Halo Array's resonant pulse extinguished all traces of sentient life throughout the galaxy, leaving naught but echoes of lost civilizations in its wake. The echoes of this monumental chapter resonate to this day, shaping the course of the Halo universe and illuminating the intricate dance of cosmic powers.Birth of an Empire
Much like the enigmatic veil that enshrouds their existence, the ancient chronicles of the Forerunners remain a tapestry of mystery and speculation. Eons ago, the illustrious Precursors bestowed life upon myriad species throughout the vast expanse of the Milky Way. Among these beneficiaries stood the Forerunners, their genesis entwined with the tapestry of cosmic time.
Yet, as the Forerunners ascended to unprecedented heights of power and hubris, the Precursors, guardians of the sacred Mantle, deemed them unworthy of such custodianship.
In an audacious act, the Precursors decreed the purging of the Forerunners, a cosmic exorcism to pave the way for ancient humanity to seize their destined role as Mantle defenders. Bereft of mercy, the Forerunners responded to this ominous pronouncement with defiance, igniting a cataclysmic war that resonated across the Milky Way and the neighboring Large Magellanic Cloud.
The Precursors, shackled by disbelief, fell before the relentless might of their once-chosen proteges. A chapter of strife and shame was etched into the annals of Forerunner history, forever veiled from the prying eyes of posterity. Erased were the records, denied were the heroes, their sacrifices unacknowledged as the Forerunners sought to expunge the indelible stain of their transgressions.
And so, the Forerunners reigned supreme over the galaxy's grand tapestry, their dominion spanning an unfathomable ten million years. They thrived, forging an empire that cast its shadow upon a staggering expanse of over three million worlds, each a testament to their indomitable might and insatiable ambition. Within their grasp lay the destinies of countless civilizations, the ebb and flow of galactic affairs guided by the enigmatic hands of the enigmatic Forerunners.
Yet, behind the facade of their supremacy, a forgotten legacy lay dormant, awaiting the inquisitive souls brave enough to seek truth amidst the shrouded halls of ancient lore.
~125,000 BCE
Around 125,000 BCE, the Forerunners built the crown jewel of their civilization, an artificial world that served as the center of all Forerunner governance, Maethrillian.
~500 Mya
Sometime long before the time of the Forerunners, the Precursors created the Domain, a repository of all knowledge in the universe. The exact date is unknown, and while some sources say it was created 500 million years ago, others say it has existed for billions of years.
~15 Mya
Around fifteen million years ago, the Forerunner race was created by the Precursors in an effort to make a new species that could assume the Mantle of Responsibility.
~10 Mya
Ten million years ago, the Precursors, the species that populated the galaxy with intelligent life including Forerunners, determined the Forerunners were a failed experiment and decided to remove them from the Milky Way galaxy.
Asserting Dominance
Within the intricate tapestry of the cosmos, echoes of the enigmatic Precursors reverberate, their legacy an indelible mark upon the annals of time. Though the mighty Forerunners eradicated their progenitors, fragments of their essence endured, scattered amidst the vast reaches of the Milky Way.
Across the starry abyss, a select few Precursors transcended mortality, transmuting themselves into desiccated remnants. These ethereal powders, ensconced within celestial vessels, ventured to the farthest reaches of the galaxy, evading the grip of oblivion. Locked away within the cosmic abyss, their purpose remained concealed, awaiting the destined hour.
And that hour arrived when ancient humanity, ignorant of the treacherous legacy they unknowingly harbored, discovered the remnants of the Precursors. As this enigmatic powder coursed through the veins of unwitting creatures, a metamorphosis commenced, birthing the abomination known as the Flood.
The perils posed by the encroaching Flood compelled humanity to expand their dominion, yet their efforts faltered in the face of inexorable annihilation. The tides of fate aligned, ushering them into the path of the Forerunners, thus kindling the fires of the Human-Forerunner Wars.
Besieged on both fronts, humanity teetered upon the precipice of oblivion, their very existence poised to be engulfed by the voracious jaws of the Flood. Salvation, however, materialized in the form of an enigmatic entity known as the Primordial. Concealed within the depths of a desolate celestial rock, this harbinger of doom assumed dominion over the ravenous horde, driving them beyond the boundaries of the galaxy.
Yet, humanity's respite proved fleeting, for treachery loomed in the shadows. The San’Shyuum, erstwhile allies, conspired with the Forerunners, forever tilting the scales of the conflict. Triumph thus eluded humanity's grasp, while the Forerunners emerged as victors, though not without cost.
Granting a semblance of mercy, the Forerunners permitted a remnant of humanity to endure, though their punishment was swift and unyielding—a devolution that stripped them of their former glory and transformed them into shadows of their former selves.
Meanwhile, the indomitable Didact, revered commander of the Forerunner military, wielded his hard-earned political capital to advocate for the construction of formidable shield worlds scattered throughout the cosmos, prepared to confront the looming specter of the Flood's resurgence.
Yet, the ebb and flow of power swayed, as the Master Builder skillfully wove his machinations into the tapestry of Forerunner society. With artful persuasion, he championed a fateful enterprise—a defense mechanism known as the Halo Array, intended as a celestial bastion against the relentless tide of the Flood.
Bound by the shackles of political maneuvering and the specter of retribution, the Didact, driven into exile, withdrew into the solitary confines of a cryptum, etching his fate upon the annals of history, to languish in isolation for a millennium, severed from the tapestry of the galactic stage.
~107,445 BCE
The birth of the Flood is actually a series of events that can be traced to a time period around 10,000 years prior to the firing of the Halo Array in 97,445 BCE.
~107,445 BCE - 106,445 BCE
After the emergence of the Flood on ancient human worlds around 107,445 BCE, human civilization was desperate to expand their territory away from Flood-controlled regions of space. As part of this expansion, humans clashed with Forerunner-populated worlds, sparking a war between the two species.
~106,538 BCE
Sometime prior to the end of the Human-Forerunner Wars, ancient humans discovered a Precursor stasis chamber containing a creature they called the Primordial. The creature, along with the stasis chamber, was taken to Charum Hakkor where is was interrogated, teaching the humans on the origins of the Flood.
~106,498 BCE - 106,445 BCE
The Battle of Charum Hakkor was one of the final battles of the Human-Forerunner Wars and also one of the largest, spanning over fifty years and likely consuming millions of lives.
~98,445 BCE
After losing political power to the Master Builder and the entire Builder rate following the end of the Human-Forerunner Wars, the Didact placed himself in exile within a cryptum on Nomdagro, which was later moved to Erde-Tyrene.
~98,395 BCE
The end of the Human-Forerunner War, along with the political fight afterwards that led to the Exile of the Didact, spurred much debate within Forerunner leadership about the right course of action to defend civilization and the galaxy against the Flood, should they return.
Fight For Survival
Amidst the tides of fate, the Forerunners found themselves confronted by their most dreaded nightmare—the reemergence of the insidious Flood. Like an unstoppable tempest, the Flood swiftly laid claim to entire star systems, relentlessly encroaching upon the domain of the Forerunners, leaving naught but devastation in their wake.
The dire situation of the Forerunners was further exacerbated when, during a fateful trial firing of the Master Builder's newly crafted Halo Array, the Primordial was unleashed from its temporal confinement on Charum Hakkor. Through cunning manipulation, the Primordial swayed the loyalty of the Forerunner AI known as Mendicant Bias, compelling it to betray its creators and join the ranks of the Flood. With a stolen halo installation under its command, the Primordial plunged the Forerunners into disarray.
In a twist of fate orchestrated by the Librarian, the Didact, long confined within his exile, was finally restored to the realm of the living. However, his reunion with the galactic stage was short-lived, as he swiftly fell into the clutches of the vengeful Master Builder, left to languish in the throes of certain death.
The Master Builder's atrocities, culminating in a merciless assault on Janjur Qom, finally ignited the flames of righteous fury within the heart of the Forerunner government. As the threat of the Flood loomed more menacingly than ever, the Master Builder faced trial upon the hallowed grounds of Maethrillian, where he would be held accountable for his crimes against the sacred Mantle.
Yet, before the trial could truly unfold, destiny intervened with an unforgiving hand. Mendicant Bias, accompanied by the Primordial and the commandeered halo installation, descended upon Maethrillian, instigating a ferocious clash that left the heart of the Forerunner capital in ruins.
Thrust into a defensive stance, the remnants of the Forerunner civilization valiantly battled the encroaching Flood, pouring their very essence into thwarting further incursions into their hallowed dominion. Yet, despite their unyielding resolve, their efforts proved futile. The entire galaxy slipped from their grasp, leaving the Forerunners with naught but a defiant fleet and a solitary halo installation converging upon the Greater Ark.
Amidst the swirling chaos of impending doom, the Forerunner forces mustered their courage, embarking upon a heroic last stand against the encroaching hordes. Alas, even with their unwavering determination and a remaining halo, the Forerunners found themselves overwhelmed, their hopes shattered as the Greater Ark crumbled beneath the weight of the cataclysm. A select few, the fortunate survivors of the onslaught, fled to the refuge of the Lesser Ark—the forge of the Neoteric Halo Array, the galaxy-spanning weapon of final recourse.
Here, under the guidance of the IsoDidact, the flames of redemption were kindled in the crucible of despair. Initiating the Great Purification, the IsoDidact orchestrated the eradication of all sentient life within the Milky Way, cleansing the galaxy of the lingering vestiges of the Flood's malevolence.
~97,745 BCE
Around 97,745 BCE, nearly nine-thousand years since the Flood disappeared from the galaxy during the Human-Forerunner Wars and three-hundred years before the Great Purification, the Flood were first observed at the edges of the galaxy on the planet Seaward, a Forerunner colony world.
~97,745 BCE - 97,445 BCE
The Forerunner-Flood War was a military engagement between the Forerunner species and the Flood that took place over approximately three-hundred years from 97,745 BCE until 97,445 BCE.
~97,495 BCE
The release of the Primordial was an unintended consequence of the test-firing of a Senescent Halo, Installation 07, by the Master Builder and Mendicant Bias in the Charum Hakkor system during the Forerunner-Flood War, approximately fifty years prior to the end of the war and the Great Purification.
~97,455 BCE
Following the Didact’s self-imposed exile one thousand years prior after losing the political battle over the Forerunner defense plan against the Flood, the Didact is resurrected from his cryptum on Erde-Tyrene by Forerunner Manipular Bornstellar Makes Eternal Lasting, and humans Chakas and Riser.
~97,455 BCE
The Battle of Janjur Qom was a brief conflict between the San’shyuum and Forerunners on the quarantined San’shyuum homeworld of Janjur Qom several years prior to the firing of the Halo Array during the Great Purification in 97,445 BCE.
~97,455 BCE
After the Revival of the Didact and his exploration of the Charum Hakkor system with fellow Forerunner Bornstellar Makes Eternal Lasting and humans Riser and Chakas, the Didact and crew traveled to the quarantined San’shyuum homeworld of Janjur Qom to try and unlock more memories in their quest for understanding.
~97,454 BCE
The Fate of Maethrillian was a large-scale but brief battle between the Forerunners and the Halo Array under command of Mendicant Bias several years prior to the firing of the halos during the Great Purification in 97,445 BCE.
~97,454 BCE
In the aftermath of the Fate of Maethrillian and destruction of the Forerunner ecumene, Zeta Halo implemented it’s security measure designed to prevent the ring from falling into enemy hands and performed a slipspace jump into another system and put itself on a collision course with a nearby planet.
~97,450 BCE
After the Master Builder captured the Didact over Janjur Qom, he decided to dispose of the Didact on a derelict Forerunner ship with a handful of other political prisoners in an area of Flood-controlled space known as a Burn.
~97,445 BCE
The Battle of the Greater Ark was one of the final battles of the Forerunner-Flood War and saw the decimation of almost all remaining Forerunner forces just prior to the firing of the Halo Array during the Great Purification in 97,445 BCE.
~97,445 BCE
The behavior of the Ur-Didact following his encounter with a Gravemind and return to the Forerunner civilization became more erratic and harder for the IsoDidact and Librarian to cope with as the Forerunner-Flood War continued.
~97,445 BCE
The Great Purification was the final event of the Forerunner-Flood War, purging the entire Milky Way galaxy of all sentient life, including Forerunners, the Flood, and any other species that may have survived the Flood infestation.
~97,300 BCE
Over one-hundred years after the Great Purification, the few Forerunners remaining on the Lesser Ark became aware that the firing of the Halo Array may have had a detrimental effect on the Domain, and proceeded to the former Forerunner capital of Maethrillian to attempt to restore it.