Adepta Sororitas - Wars of Faith: The Reign of Blood (Late M35-Early M36) - Goge Vandire engineers the ascension of the degenerate Ecclesiarch Paulis III, then becomes 361st High Lord of the Administratum. Shortly after, Vandire topples Paulis and assumes the mantle of both High Lord of the Administratum and Ecclesiarch. Vandire's Reign of Blood begins. Almost 14 billion are slaughtered by the Divine Army during the Purge of Lastrati. The Daughters of the Emperor from San Leor are co-opted into becoming Vandire's personal bodyguard, and are renamed the Brides of the Emperor. The Reign of Blood culminates in the Siege of the Ecclesiarchal Palace, at the height of which High Lord Vandire is executed by Alicia Dominca, the leader of the Brides of the Emperor.The Thorian Reformation (Early M36) - Sebastian Thor assumes the position of Ecclesiarch. The 4,000 or so surviving Brides of the Emperor become the Daughters of the Emperor once more. They are divided between the two newly established convents -- the Convent Prioris on Terra, and the Convent Sanctorum on Ophelia VII. Those sisters still residing at San Leor are transported to the new convents, and the foundations of the non-militant orders are laid. In 288.M36 the Decree Passive prohibits the Ecclesiarchy maintaining standing armies of "men under arms." The Daughters of the Emperor are officially constituted as the Adepta Sororitas. The ranks of the Adepta Sororitas swell to over 10,000 battle sisters, leading Sebastian Thor to establish the system of orders.The Martyrdom of Alicia Dominica (ca. 650.M36) - Alicia Dominica falls at the Battle of Frideswide's World, surviving hundreds of blows but falling to a single traitor’s lasgun blast to her heart. She is declared a saint soon after. Ecclesiarch Equitus XI formalises the position of Abbess of the Adepta Sororitas and appoints Sister Palmiro of the Order of the Holy Word to the position.Wars of Faith (Early M38) - During a century in which the power of the Ministorum reaches a peak not seen since the reformation of Saint Sebastian, a thousand Wars of Faith are launched across the length and breadth of the Imperium, and billions of heretics are put to the pyre.Founding of the Order of the Bloody Rose & the Order of the Sacred Rose (Mid M38) - An additional two Orders Militant are formed by order of Ecclesiarch Deacis VI. The Order of the Bloody Rose is founded at the Convent Sanctorum in honor of Saint Mina. The Order of the Sacred Rose, founded in memory of Saint Arabella, the last of the six sisters to enter the Throne Room, is formed at the Convent Prioris.The San Leore Massacre (799.M41) - A Red Corsairs strike force invades San Leor, the original homeworld of the Daughters of the Emperor. The Chaos Space Marines are unprepared for the fury of the Sororitas reprisal, as they come under assault from nine separate Orders Militant and are utterly annihilated by the combined counter-attack.The Battle of Fire and Blood (833.M41) - During the Vinculus Crusade, Black Templars Space Marine Chapter join forces with the Order of the Bloody Rose to purge the heretical warrior-cults of the Peleregon cluster.The War for Piety (835.M41) - The Shrine World of Piety rematerialises after being swallowed by a Warp storm two centuries earlier. The planet is, however, almost unrecognisable, having transformed into a hideous Daemon World. Canoness Sariah of the Order of the Sacred Rose immediately leads a force of Battle Sisters to the planet to retrieve artefacts from the Reliquary of Hope, one of the few sites on the whole world to have withstood the corrupting touch of Chaos. As the rest of her forces establish a formidable perimeter around the reliquary, Sariah leads several Celestian and Dominion squads into the labyrinthine corridors beneath it. For three days, Canoness Sariah and her Sisters battle through monster-infested passageways; bolters cut down scores of blood-hungry Daemon-hounds and flamers burn swathes of Nurglings and bloated plaguebeasts. Only Sariah and two Celestians survive to rejoin the Battle Sisters on the surface, having recovered the left thigh bone of Saint Dolan and three pages of the ominous Lexicon of Falsehoods from a stasis vault. The surviving Battle Sisters withdraw to orbit with their prizes just as a fleet of Grey Knights vessels arrives and lays waste to the planet with cyclonic torpedoes.The Defence of Dimmamar (858.M41) - Dimmamar, birth world of Sebastian Thor, comes under attack from the Eldar of Craftworld Ulthwé without any warning or apparent reason. Seraphim Superior Amelda of the Order of the Bloody Rose immediately retaliates, leading her squad of Seraphim in a daring attack to slay the enemy commander -- Farseer Kauerith. The Seraphim's pistols blast a bloody path through a score of black-clad Eldar before the Sisters are engulfed in a hurricane of psychic lighting. Though many of her companions fall, Amelda refuses to yield and defiantly advances through the edritch storm, slaying the Eldar Farseer with a single bolt round to the head.The Bloodtide Martyrs (876.M41) - Chaos comes to the Basilica of St. Mariel on the world of Van Horne in the shape of the Bloodthirster known as the Lord of the Bloodtide. The first to oppose the Daemon's legions are the Battle Sisters of the Order of the Ebon Chalice, but soon after battle is joined, all contact is lost with the Adepta Sororitas. The Daemons are eventually vanquished with the arrival of the 4th Brotherhood of Grey Knights. Upon their victory, contact with the Imperium is re-established and it is discovered that every Battle Sister on the planet has been killed. The slain are officially elevated into the ranks of honoured martyrs in the eyes of the Sisterhood.The Slaughter at Sanctuary 101 (897.M41) - On a world in the Vidar Sector located in the Eastern Fringe of the galaxy, the Order of Our Martyred Lady had founded a fortress-convent designated Sanctuary 101. The isolated convent had the misfortune of being the Imperium's first recorded contact with the Necrons, where the Battle-Sisters were massacred by Necron Raiders. Video logs recorded a furious battle between the valiant Sisterhood and the Necron Warriors, but little of worth was displayed as there appears to have been an artificial disruption introduced into the recordings. Subsequent investigations into the site of battle revealed nothing more than the mutilated corpses of the Adepta Sororitas, eviscerated in a hideously surgical manner. No signs of the true nature of Sanctuary 101's undying attackers were ever found.The Battle of the Penitent (938.M41) - The Orders of the Valorous Heart and Ebon Chalice suffer great losses against Warboss Blackaxe's Orks and are pushed back to the walls of the Cathedral of Saint Dufaux. The attackers are held back only due to the unyielding determination and sacrifice of hundreds of Sisters Repentia. However, their martyrdom buys time for the Battle Sisters to open the vast cathedral gates. The greenskins are slaughtered shortly thereafter as two dozen Penitent Engines rampage across the battlefield, staining it with Ork blood.The Promethium War (980.M41) - The Order of the Ebon Chalice reinforces Space Marines of the Salamanders Chapter who are engaged in a brutal urban war against the dread Black Legion on the world of Heletine. The enemy is put to the torch as dozens of Immolators and Land Raider Redeemers burn a path through several war-torn cities. Despite the strength of their combined forces, the Imperium's advance is halted when Lord Gralastyx -- the Daemon Prince leading the forces of Chaos -- unleashes a legion of Possessed Chaos Space Marines. As the frenzied Chaos horde rips through the Imperium's ranks, Battle Sisters and Space Marines fight back-to-back, their bolters and flamers defiantly blazing away as every warrior endeavours to sell their life dearly. However, the allied forces are saved when Saint Celestine appears, falling upon the Chaos horde like an avenging angel. The Living Saint carves a bloody path through the baying horde towards Lord Gralastyx, before plunging her fiery blade through his tainted heart. With the death of Gralastyx, the Chaos horde is banished into the Warp, but of Celestine there is no sign, for she has vanished as mysteriously as she appeared.The Martyrdom of Praxedes (991.M41) - Canoness Praxedes of the Order of Our Martyred Lady reinforces the Imperial Guard on the cardinal world of Okassis, soon after the start of the Second Tyrannic War. As the Tyranids of Hive Fleet Kraken assault the Ecclesiarchal Cathedral, the combined fire of Retributor squads and Exorcist tanks obliterates the first wave, but the second manages to breach the Cathedral's fortress-walls. As Tyranids pour through, Praxedes confronts a monstrous Hive Tyrant. During the fighting, the Canoness is dealt a mortal wound, but even as her blood pours onto the floor, Praxedes summons the strength to land one final blow, caving in the Hive Tyrant's skull with a thunderous strike from her power mace. With the Tyrant's destruction, the Tyranid swarm looses all direction. The Battle Sisters waste no time in pressing the assault, determined to avenge the death of their beloved leader. Such is the fury of their counter-attack that the remaining aliens are swept aside, buying the time needed to evacuate the Ecclesiarchy's priests from Okassis.The Third War for Armageddon (998.M41) - The Orders of the Argent Shroud and Our Martyred Lady stand amongst the Imperium’s defenders as Ghazghkull Thraka invades the world of Armageddon once more. In the initial Ork assault, the Battle-Sisters' positions were attacked by large Ork submersibles which emerged from the Boiling Sea. Caught unawares by the audaciousness and sheer ferocity of the Greenskins' attack, many of the Battle-Sisters were slain. The Battle-Sisters were the front line of defence for Hive Tempestora, but their battle lines soon were overrun. This enabled the vile Greenskins to take control of the hive city's underhive within only a few hours. With each successive wave of Ork attacks, the Sisters were continuously pushed back, until finally they found themselves with their backs to the great armoured doors of their Sanctorum. It was there that the Battle-Sisters made their final heroic (but futile) stand against the encroaching Ork hordes. This day became one of the darkest within the Order's history as their battle lines crumpled and they were scattered. Those few Sisters that survived the final assault attempted to form their lines again but were cut down by the massive green tide of Orks. After an hour of savage fighting, no humans were left alive as the vile Orks took Hive Tempestora and the Sanctorum. After this defeat, the Order could barely field three whole companies. The loss of their Sanctorum and the many valiant Sisters who had fallen was acutely felt throughout the rest of the Order -- many Novices began questioning their faith in the Emperor. Those Battle-Sisters that remained recovered quickly, swearing mighty oaths of vengeance against the foul Greenskins and vowing to retake Hive Tempestora, no matter the cost. But before they could do so, the surviving Sisters of the Order were spread across the rest of the planet to help solidify key Imperial positions. Their presence proved pivotal in preventing the Orks from overrunning several areas of Armageddon.