CANON TIMELINE

[taijiya]

some entries from the iy wiki with supplemental information from me.

INTRODUCTION ARC (CH. 86-94)

• Inuyasha and his gang discover that a demon was supposedly slayed by a 16 year old demon slayer who discovered Shikon fragment inside the demon's body. The girl's name is Sango and she returns to her village with gifts for everybody. Although her brother Kohaku is just 11 years old, Sango's father decides to take him to battle the demons.
• The demon slayers arrive at the mansion of Lord Kawegaki, and the spider demon plaguing the place appears as expected. However, the demon is defeated too easily. Kohaku starts killing his own father and his friends. Sango discovers a small thread of spider web that connects Kohaku to the lord of the manor. Concluding that the real demon is the lord, Sango attacks him, only to have Kawegaki's guards attack both her and her brother. Before he dies, Kohaku becomes himself again; the siblings are buried in the manor garden, and Lord Kawegaki's son emerges from the manor to chop off the lord's head, revealing that he was in fact the demon. In the middle of the night, Sango claws herself out of her shallow grave.
• Inuyasha and the group pay respects to the exterminators who lost their lives to Naraku's demons, having discovered the slaughtered village in their search for Sango and her shard. The lord's son has Sango treated in the manor; little does she know that he is actually Naraku, and he tricks her by telling her that Inuyasha slaughtered her clan.
• Naraku gives Sango a Shikon Jewel shard to numb the pain of her injuries and give her strength as she hunts Inuyasha down, confronting him and the rest of his party.
• Sango battles Inuyasha, the others kept at bay with the help of Naraku's Saimyosho and one of his golems; however, she distrusts him enough to send Kirara to follow him as he escapes from the barrage of the Inutachi's attacks.
• Sango continues to battle Inuyasha, until one of her gas attacks backfires. Despite her attempts to hurt him, Inuyasha saves her from her own poison, which she thanks him for by stabbing him through the arm. Inuyasha tries to tell her that it's Naraku, not him, behind the deaths of her family; she promptly faints from blood loss. Kirara assists Miroku in following Naraku's golem.
• Sango awakens being carried by Inuyasha to where Miroku fights Naraku's golem, where he then admits being behind the slaughter of her family and village, citing his need to get the taijiya out of his way before his rise to power. Sango gives the Inutachi the information they need to destroy the golem.
• At the golem's demise, the Inutachi retreat with Sango to her village, where she recovers for several days and is touched to find that they gave her people proper burials. Kagome invites Sango to join the Inutachi, and figuring that that's the easiest way to get to Naraku again, she accepts.
• Sango escorts the gang to visit the cave of Midoriko and reveals how she battled the demons for seven days before sacrificing herself leading to the creation of Shikon no Tama. Midoriko was secretly loved by a man just like Naraku.

WATER GOD ARC (CH. 95-100)

• Inuyasha's group meets a chief's son, Taroumaru, whose best friend, Suekichi, takes his place as a human sacrifice to the "water god" Daija. The group suspects it might be a demon posing as a god.
• The Inutachi and Taroumaru confront Daija, and provoke his wrath. Daija has a holy halberd, which gives legitimacy to his claim of being a god, and the Inutachi are hesitant to fight him but must do so anyway.
• The Inutachi are yanked into a whirlpool; Kagome is spit back out with the two children and protects them, also finding out that Daija is actually a snake demon. Miroku, Inuyasha, and Sango are brought to safety by fish maids who claim that Daija is a fake and the true water god is trapped. Inuyasha returns to the shrine to engage Daija as Miroku and Sango go to find the true water god.
• Kagome and the kids watch as Inuyasha fights with Daija, while Miroku and Sango find and free the tiny water goddess.
• Sango and Miroku return with Suijin the goddess, who exposes Daija's true form with one of her earrings. But without her holy weapon, she is exhausted, and it falls to Sango and Inuyasha to do battle with Daija. Angered, the Daija sends deadly miniature hurricanes hurtling towards the village.
• Suijin awakens and, with her halberd returned, calms the hurricanes. Miroku sucks Daija into his Wind Tunnel. The village is saved, and Miroku extorts a handsome payment from the chieftain in exchange for not informing the village of his substitution as they leave.

WOUNDED WIND TUNNEL ARC (101-105)

• Sango has prepared to kill a rat demon with help of Kagome. Meanwhile, Miroku spots a mysterious woman and decides to follow her. Miroku hears the woman's story, but he realized she is a demon who killed a human priestess and took possession of her body. He uses his Wind Tunnel to suck up the demon, but its blades cut Miroku's hand. Miroku returns to Inuyasha and the group for dinner and Sango and Kagome glare at him, assuming he was womanizing. Miroku decides to visit his foster father for repairing the broken Wind Tunnel. The next day, the group learns that Miroku left them.
• Miroku remembers how, as a child, he witnessed his father's death by wind tunnel, the same way as his grandfather. Miroku and Hachi (his tanuki familiar) visit the temple where Miroku was raised by Mushin after his father's death and finds Mushin laying on floor drunk. Mushin agrees to do surgery on his wounded hand. Meanwhile Inuyasha and the group chase Naraku, who turns out to be a fake; Myoga the flea demon and longtime family friend of Inuyasha comes and tells the group about Miroku's whereabouts. That night as Mushin gets ready to repair Miroku's hand, a demon appears and sucks Mushin's soul into a jar.
• Miroku is numbed with sedating medicine, but must fight off the possessed Mushin's advances, as well as the attacks of a horde of demons converging on the temple.
• The Inutachi find Miroku and begin to fight to protect him, while trying not to kill Mushin. Sango clears the lesser demons out, Inuyasha keeps Mushin at bay. Then Sango and Kagome look for the tsubo pot user controlling Mushin.
• Inuyasha knocks Miroku out to keep him from using his wounded Wind Tunnel and sacrificing himself. Inuyasha, while trying to protect his friend, discovers the "true power of Tessaiga" (killing 100 demons at once). Kagome and Sango find and apprehend the tsubo pot and restore Mushin.
• Mushin performs surgery on Miroku's hand, and tells the group of his plight: that the powerful Wind Tunnel is a curse from Naraku and will eventually kill Miroku as it did his father, unless Naraku can be killed first.

KOHAKU'S RETURN (106-111)

• Inuyasha and the group decide to spend some time at a hot spring. Inuyasha and Miroku discuss about the recent events with Tessaiga. Meanwhile, Kagome and Sango are enjoying their time in the spring, when Kagome notices a large scar on Sango's back. Sango reveals that her brother inflicted it upon her before he was killed by Naraku. The girls then investigate a noise in the bushes and throw rocks at what is revealed to be only a monkey, but the noise brings the boys running and they end up black and blue for what they see.
• The next day, when the group finds a village of dead bodies and hears that the murderer is a 11 year old boy wearing a demon exterminator's uniform, Sango is shocked and recognizes that boy is her brother Kohaku. She hops on Kirara to chase him and the three of them vanish through a portal in front of Inuyasha's group. Sango asks Kohaku to remove his mask to reveal himself, and Naraku comes and tells Sango that he put a Shikon shard on Kohaku's neck.
• Myoga tells the remaining Inutachi of Kohaku's identity, as Naraku tries to blackmail Sango to steal Tessaiga for him in exchange for her brother's life, as he is now a mindless pawn.
• Sango contemplates her decision deeply. She has a conversation with Inuyasha about what happened when she chased Kohaku, and they discuss whether or not he's really her brother anymore. Then Kohaku and a horde of demons attack the hut where the Inutachi are staying. Only when Kohaku threatens to remove his own Shikon shard and kill himself does Sango act, stealing Tessaiga and returning to Naraku on Kirara.
• When Sango does to give Tessaiga to Naraku, she attempts to kill him. Her attempt is foiled, though, and ends with a miasma-poisoned Kirara and Kohaku repeatedly stabbing Sango with his sickle. Instead of retaliating, Sango only hugs him and begs him to remember; and Kohaku hesitates as if he does. The rest of the Inutachi arrive as Sango passes out and begin to fight Naraku.
• Sango wakes up to apologize weakly in Kagome's arms; Inuyasha has to knock out Miroku again to stop him from using his healing Wind Tunnel. Poisonous miasma surrounds the group. In the end what saves them is a sacred arrow fired by Kagome that nearly destroys Naraku.
• Kohaku escapes with Naraku's remains. Sango attempts to leave the Inutachi, ashamed of her betrayal. But the rest of her group convince her that it's okay for her to stay; she breaks down in Kagome's arms, revealing that she was actually terrified of having to be alone in her quest.

JINENJI ARC (112-115)

• Sango and Kirara must recover. Miroku and Shippo stay to guard them while Inuyasha and Kagome seek out a rumored herb field to cure Kirara's poison. Along the way they meet and protect a gentle giant half-demon.

THE DEMON PIT ARC (116-120)

• A resurrected Kikyou treats the wounded. Messengers come to her to beg her to save Lord Kawegaki. She obliges, and when brought to see the lord (who is actually Naraku), the half-demon recognizes her and orders her not to be let out of the castle. Meanwhile the Inutachi go to investigate a mountain radiating evil. Inuyasha and Miroku enter, while the ladies and Shippo remain outside.
• Kikyou escapes the castle to go to the mountain. She passes the girls outside on her way in, and Kagome goes inside with her. This is the first time Sango meets Kikyou, and Shippo explains to her who the woman is. Deep inside, the boys discover that the inside of the mountain is a kodoku, or container where many demons are made to fight and the losers are absorbed into the winner. Inuyasha begins to fight despite this, and Kikyou shows up unexpectedly.
• After a dramatic fight, Kikyou breaks the seal on the mountain from inside, freeing the giant demon-conglomeration as well as the people inside. The kodoku was there to create a new body for Naraku. Naraku escapes with Kikyou in hand, and in his grasp she realizes that he is the Onigumo she once knew. 

NIGHTMARE CREEPERS ARC (121-124)

• The Inutachi, while traveling, are abruptly interrupted by their worst nightmares. Sango's nightmare was that Kohaku, left alive due to her inability to sacrifice him, killed all of her friends and attacked her again. Kagome alone is unaffected, and finds Naraku's golem and Kikyou in a tree, where he is controlling the creepers. Kikyou breaks free as Naraku leaves, and Inuyasha wakes up from his nightmare when he remembers that Kagome saved him from it a long time ago, continuing to free his friends from the creepers.
• Kagome, Kikyou, and Inuyasha have a predictable love triangle confrontation as Miroku rescues Sango. Kikyou, having stolen Kagome's shards, gives them to Naraku.

MEET TOTOSAI + WIND SCAR (125-129)

• The crew is approached by Totosai while traveling. Myoga also comes to explain that this is the smith that created Tessaiga. He says he has come to help Inuyasha master Tessaiga's true power--and then tells him that he must protect him from Sesshoumaru, who demanded a sword from Totosai on pain of death. This is Sango's first introduction to Totosai.
• The brothers predictably begin to battle. Totosai reveals that Sesshoumaru already has a sword from his father's fang, Tenseiga, but Sesshoumaru has deemed it useless. The Inutachi and Totosai leave the battle and he reveals that Tenseiga cannot cut, only heal.
• Sesshoumaru and Inuyasha battle again. Sango makes an attempt to intervene, but Inuyasha stops her. Inuyasha is blinded and then figures out the Cutting Wind, the secret to unlocking Tessaiga's power.

MEET KOUGA ARC (130-140?)

•  The Inutachi stumble upon a village, its people slaughtered... but its animals strangely untouched. Meanwhile, a silent young girl attempts to bring food to the injured Sesshoumaru. At her home, she witnesses the wolf demon Kouga capture and kill one of his subordinates for taking one of his Shikon Jewel shards. He then sets his wolves on the rest of the village--just as he did with the village that the Inutachi stumbled upon.
• The young girl, Rin, is attacked and killed by Kouga's wolves. Sesshoumaru finds her and uses Tenseiga to bring her back to life. Meanwhile, the Inutachi walk into this second village terrorized by wolves. This time they confront the wolves, and then Kouga, who has Shikon jewel shards in both legs and his arm. Angered by the slaughter of his underlings, Kouga launches into battle with Inuyasha. When Inuyasha tries to use the Cutting Wind, Kouga senses that something is wrong and flees.
• Kouga decides to stage a trap to capture Kagome since she can sense jewel shards. The Inutachi unfortunately fall straight into it. Sango tries to go after Kagome, but is attacked by harpy demons. Back at the wolf demons' den, Kagome agrees to help Kouga fight the harpy demons so that she might have a chance to escape back to Inuyasha. Kouga decides that he will take Kagome as "his woman" because she is cute and can see Shikon shards. As Kagome objects, Sango, Miroku, and Inuyasha follow mushroom spores scattered by Shippo during the kidnapping. (He is with Kagome in the cave, incidentally.)
• Kouga, Kagome, and the tribe of wolf demons go to fight the harpy demons. The rest of the Inutachi meet them there. Kouga and Inuyasha manage to jointly chase off the boss harpy, who possesses a Shikon shard, but then get into a fight themselves over Kagome. The harpy boss comes back to crash their fight, tearing the jewel shard out of Kouga's arm. Inuyasha finishes the demon off with his Cutting Wind, procuring the harpy's two shards.
• Kagome and Inuyasha fight over her defense of Kouga, and Kagome returns to her own time. Shippou explains to Sango the mechanics of Kagome's comings and goings (although Sango seems to think Kagome comes from a different country, not a different time). Eventually, the two make up and Kagome returns to the feudal era.

KAGURA APPEARS

• On the road, the Inutachi are confronted by bandits... and then by a massive bear demon with a Shikon fragment who makes quick work of them. The Saimyosho appear, steal the shard, and disappear again quickly.
• Kouga opts out of a plot with other wolf demon tribes to attack a castle rumored to possess a load of Shikon shards. Many of his tribe members go, though. They are met with a strange woman with a fan--Kagura--who slaughters them immediately. The Inutachi arrive at the castle, following the Saimyosho, and are shocked to face a reanimated army of dead wolf demons.
• On Naraku's orders, Kagura stops controlling the corpses just as Kouga arrives. Seeing a blood-covered Inuyasha and his dead friends, Kouga assumes the worst and launches into a death match with Inuyasha, assisted by a false jewel shard given to him by Kagura's messenger.ch142

KOHARU ARC + KANNA 
GOSHINKI + TESSAIGA BREAKS
INUYASHA'S HUMAN FORM
TOKIJIN ARC + HIRAIKOTSU SPLITS
KAGEROUMARU + JUUROUMARU
SANGO'S ATTEMPTED MURDER-SUICIDE (177-182)