Copy paste from the Timeline of Index Wikia.
- July 19
Uiharu Kazari becomes ill due to a cold. Misaka Mikoto and Shirai Kuroko conduct research into the Level Upper.
Kamijou Touma accidentally interferes with Misaka Mikoto's attempt to extract information from Junta and his gang at Benny's (date based on the A Certain Scientific Railgun manga).
The Index Arc begins.
Kamijou Touma is confronted on a bridge by Misaka Mikoto after trying to protect the thugs from her wrath. Their meeting causes a city-wide blackout.
With the blackout, Index slips into Academy City. While jumping from rooftop to rooftop in order to flee from Stiyl Magnus and Kanzaki Kaori, she eventually ends up on the balcony railing of Kamijou Touma's dorm.
- July 20
Summer break officially starts in Academy City.
Kamijou Touma meets Index on his balcony. After Touma feeds her and learns of the existence of magicians, Index leaves.
Kaitabi Hatsuya falls into a coma.
Saten Ruiko finds the Level Upper.
Misaka Mikoto, Shirai Kuroko, Uiharu Kazari and Saten Ruiko meet with Kiyama Harumi to discuss the existence and properties of the Level Upper.
Misaka Mikoto meets Kamijou Touma and once again challanges him, but Touma dismisses her attempts. Mikoto loses confidence in her own abilities.
Kuroko tracks down Junta and his gang from the botched investigation the day before, and enquiries about the Level Upper.
Kamijou Touma returns home, and is attacked by Stiyl Magnus. After winning the fight, he takes an injured Index away.
Index is taken to Tsukuyomi Komoe's house. Using magic, her severe wounds are healed.
- July 21
Kamijou Touma and Index are given refuge at Tsukuyomi Komoe's house for the next three days.
Saten Ruiko defends Koujun Kikuhiko from Trick and his gang, who were charging money for a copy of the Level Upper.
Shirai Kuroko destroys a building in order to defeat Trick and save Ruiko and Kikuhiko. Feeling powerless and scared, Ruiko shares the Level Upper with her school friends Akemi, Muu, and Mako.
- July 24
Misaka Mikoto regains her determination to defeat Kamijou Touma.
Akemi falls into a coma due to her use of the Level Upper.
Saten Ruiko falls into a coma due to her use of the Level Upper.
With Heaven Canceler's help, the creator of the Level Upper is revealed to be Kiyama Harumi.
Harumi takes Uiharu Kazari hostage to stall for time while she attempts to make calculations using the Level Upper network.
Mikoto faces off against Harumi. Harumi's subsequent defeat spawns the AIM Burst.
Mikoto defeats the AIM Burst.
Harumi is taken into custody.
Ruiko and the other victims of the Level Upper wake from their comas.
The Level Upper Arc ends (date based on the A Certain Scientific Railgun manga).
Kamijou Touma and Index head for a bathhouse.
Kamijou Touma is attacked by Kanzaki Kaori. After learning of Index's memory erases and the relationship between her, Kaori, and Stiyl Magnus, Touma attempts to force Kanzaki to abandon her pursuit. He is defeated and falls unconscious for three days.
- July 25
Misaka Mikoto and Shirai Kuroko are forced to spend the day cleaning the pool after breaking curfew the previous night (date based on the A Certain Scientific Railgun manga).
- July 27
Kamijou Touma awakens after three days and affirms his desire to protect Index.
Stiyl Magnus and Kanzaki Kaori arrive at Tsukuyomi Komoe's house to perform the memory-erasing ritual at midnight.
- July 28
Kamijou Touma accidentally awakens Index in John's Pen mode, causing her to go on a rampage.
Kamijou Touma tells Stiyl Magnus and Kanzaki Kaori that they have been deceived by the Church. The three of them work together to restrain Index.
12:22 AM: Tree Diagram is destroyed when Kamijou Touma deflects a powerful attack from Index.
Kamijou Touma loses his memories after protecting Index from the fallout of one of her own attacks.
As Kamijou Touma recovers in the hospital, he lies to Index about his memory loss to alleviate her pain.
The Index Arc ends.
- August
One month before August 31st, Etzali infiltrates Academy City under the orders of his faction, the Return of the Winged One, to judge if the growing Kamijou Faction is dangerous, and dismantle it if so.
- First Week
The Big Spider Arc begins.
The Big Spider Arc ends.
Big Spider disbands after the capture of Kurozuma Wataru and Hebitani Tsuguo.
The Poltergeist Arc begins.
The Poltergeist Arc ends.
Kiyama Harumi's students awaken from their comas.
Therestina Kihara Lifeline is taken into custody.
- August 1
A terrorist attempts to attack a conference building in School District 3 where a meeting between the Board of Directors and several leaders of other nations are taking place, using a vehicle carrying the additional module of Hikoboshi II filled with the dangerous Hydrazine liquid fuel. The driver is ordered to drive the vehicle towards it lest he or she takes control of the vehicle remotely to cause an accident. With combined efforts of Uiharu Kazari, Yomikawa Aiho, Sangaku Youko, and Anti-Skill, the disaster was prevented. Misaka Mikoto and Shirai Kuroko would later go on to capture the perpetrator.
- August 8
The Deep Blood Arc begins.
The Roman Catholic Church's Thirteen Knights and its long-range bombardment spell, the Gregorian Chant, are defeated after engaging Aureolus Izzard.
- August 9
The Deep Blood Arc ends.
Aureolus Izzard is declared dead after the events of the arc, but the truth is that he had his memories and appearance changed after his ability to use magic was sealed as a consequence of his defeat.
- August 10
The Sisters Arc (Railgun) begins.
- August 20
The Sisters Arc (Index) begins.
- August 22
The Sisters Arc ends.
The Level 6 Shift experiment is canceled.
http://toarumajutsunoindex.wikia.com/wiki/Story_Timeline |