Sword Art Online Timeline

2008

 * Kazuto is adopted by the Kirigaya family after his birth and his parents' apparent death.

2018

 * Kazuto finds out about his parents' deaths from the deleted entry record he found on the internet.

September/October

 * Asada Shino is involved in a fatal robbery in a post office.

May

 * The NerveGear is created.

August

 * The Sword Art Online (SAO) Closed Beta is launched.
 * Kirito encounters Argo.

September

 * The Sword Art Online Closed Beta is closed.

November 6th

 * Start of Sword Art Online Official Server Service.
 * Kirito shows Klein the basics of the game.
 * 17:30 Aincrad Standard Time - Kayaba Akihiko successfully traps 10,000 Players in the game. Of this 10,000, between 700-800 are beta testers.
 * 213 people died because of family or friends of the players attempted to remove the NerveGear from their head.
 * Kirito parts ways with Klein and heads to Horunka village.
 * Kirito goes off to complete the «Secret Medicine of the Forest» quest. He meets Coper, another beta tester. Coper tries monster PK on Kirito only to end up dying himself. (Volume 8)

After November 6th

 * The guild Aincrad Liberation Force was started.

December

 * Suguha finds out about Kazuto’s parents’ death.
 * 2000 people had died from playing Sword Art Online. Of this number, roughly 300 deaths were beta testers.
 * The top class proto-front-lines group is barely level 10 on average.

December 2nd

 * Gaiden - "Aria in the Starless Night"
 * Kirito meets Asuna.
 * The First Floor Boss Strategy Meeting is held in the Town of Tolbana.

December 3rd

 * Diabel's party finds the boss room
 * The second First Floor Boss Strategy Meeting was held. Asuna temporarily joins Kirito's party.
 * Asuna borrows Kirito's bathroom.

December 4th

 * 10:00 Aincrad Standard Time - The First Floor Boss Raid Group bands together.
 * Kirito deals the Last Attack on Illfang the Kobold Lord. He gains the Coat of Midnight as a bonus.
 * The term Beater was created.
 * Gaiden - "Aria in the Starless Night: Continuation"
 * Kirito opens the teleport gate to the second floor. The first Town Opening is held.
 * Kirito helps Argo out. He starts the acquisition quest for the Martial Arts Extra Skill.

December 7th

 * Kirito completes the acquisition quest for the Martial Arts Extra Skill.

December 8th

 * Gaiden - "Rondo the Transient Sword"
 * Asuna forces Kirito to help her hunt «Needle of Wind Wasp».
 * Kirito is Level 13

December 14th

 * The second floor boss is defeated.
 * Gaiden - "Monochrome Concerto"
 * Asuna and Kirito party together. With Kirito's help, Asuna defeats the Dark Elf

2023

 * Konno Yuuki begins using the MediCuboid.

April
April 8th
 * Volume 2 - "The Red-Nosed Reindeer"
 * Kirito joins the guild Black Cats of the Full Moon.

May

 * Creation of AmuSphere and ALfheim Online (ALO).

May 9th

 * Lead Group makes it through the 28th Floor, according to the Weekly Argo newspaper.

June

 * Death of the Black Cats of the Full Moon.

October-November

 * Kirito acquires the unique skill "Dual Blades".

November

 * Suguha joins ALO.
 * Kirito learns rumors of a rare item drop which can revive dead players from Argo. Kirito starts power leveling even more so than before in order to solo the event.

December
December 24th
 * Kirito defeats the event boss, Nicholas The Renegade and receive the rumored item drop, Divine Stone of Returning Soul, only just to be disappointed by its description.
 * Kirito receives a Timer-Activated Message Record Crystal from Sachi.
 * Front line is at 49th Floor.

January

 * Birth of the red guild "Laughing Coffin" (January 2024, SAO).
 * Kirito acquires the sword Elucidator from a rare drop.

February

 * Volume 2 - "Black Swordsman".
 * Front Line is at 55th Floor.

March 6th

 * ME1 - "The Progressers".
 * 56th Floor Boss Strategy Meeting
 * Duel between Asuna and Kirito; Kirito is Level 71.

March 7th

 * 57th Floor is reached

April

 * Serious meeting between Asuna and Kirito.
 * Volume 8 - "A Murder Case in the Area".
 * Front Line is at 59th Floor.

June

 * Volume 2 - "Warmth of the Heart".
 * Kirito acquired the sword "Dark Repulser".
 * Front Line is at 63rd Floor.

August

 * Gaiden - "Sound of Water, Sound of Hammer ".
 * Front Line is at 70th Floor.
 * Coalition against "Laughing Coffin".
 * 74th Floor of Aincrad reached.

September

 * ME4 - "Cold Hand, Warm Heart".

October

 * Volume 3 - Beginning of Prologue.
 * Volumes 1, 2 - Prologue.
 * Volume 1 - Chapter 1.
 * Volume 1 - End of Chapter 4.
 * Volume 1 - Chapters 5-12.

October 9th

 * Front liners actively begin exploring the 74th Floor.

October 18th

 * Kuradeel challenges Kirito to a duel
 * The Gleam Eyes is defeated; 75th Floor of Aincrad is reached.

October 19th

 * Kirito meets Heathcliff and they agree to duel.
 * Volume 1 - Chapter 12

October 20th

 * Kirito duels with Heathcliff and loses; Kirito joins the "Knights of the Blood ".
 * Volume 1 - Chapter 13.

October 22nd

 * Kirito wears Knights of the Blood's white uniform for the first time.
 * Kirito tells Asuna about his past guild, Black Cats of The Full Moon, and his reason why he refuses to form a party nor joining a guild with anyone since then.

October 23rd

 * Volume 1 - Chapters 14-16.
 * Kirito meets with Godfree and Kuradeel to train in the 55th Floor dungeon.
 * Kuradeel kills Godfree during training, and reveals that he is actually member of Laughing Coffin.
 * Kirito proposes marriage to Asuna in her house in Salemburg.
 * Gaiden - Chapter 16.5.

October 24th

 * Kirito and Asuna request leave from the Knights of the Blood.
 * "The Day Before": Kirito, Asuna and Argo took the "Wizard of Oz" side quest. After that, they get married on this day.

October 25th

 * Kirito and Asuna move into their new home on the 22nd Floor.

October 26th - 29th

 * ME6 - "Algade Showdown".

October 30th

 * Kirito and Asuna encounter Yui in a forest on the 22nd Floor.
 * Volume 2 - "Morning Dew Girl".

October 31st

 * Kirito and Asuna travel to Starting City with Yui; they encounter Sasha and the orphanage.

November

 * Volume 1 - Chapters 17-19.

November 1st

 * Kirito and Asuna are approached by Yulier. They enter the dungeon under Black Iron Castle.
 * Yui is erased by Cardinal, but not before Kirito saves the data.

November 2nd

 * Kirito and Asuna leave Starting City and return to the 22nd Floor.

November 3rd

 * Kirito meets Nishida.

November 6th

 * Kirito and Nishida successfully manage to fish the local fish god.
 * Scout party of 20 people departs for the 75th Floor Bossroom. Half of them is wiped out.

November 7th

 * Volume 1 - Chapters 20-24.
 * 10:00 AM: Kirito and Asuna report at Grandum
 * 1:00 PM: Raid party departs for the 75th Floor Bossroom using a Corridor Crystal.
 * ~2:20 PM: The Skull Reaper is defeated. About fourteen players became casulaties of this boss battle.
 * Kirito reveals Heathcliff's identity, which no less than Kayaba Akihiko himself.
 * 2:55 PM: Kirito defeats Heathcliff; Sword Art Online is Cleared.
 * ~3:00 PM: Around 6,000 remaining player are automatically disconnected, 300 of them (including Asuna) got transported to ALfheim Online instead of returning to the real world.
 * SAO Deleted.
 * Volume 1 - Chapter 25.
 * End of Aincrad Arc.
 * Volume 3 - End of Prologue.

January

 * ME5 - "Salvia".
 * Volume 3 - Chapter 1.
 * Volume 3 and 4 - Chapters 2-5.
 * "Excaliber" found.
 * Volume 4 - Chapters 6, 7.
 * Volume 4 - Chapter 8.
 * Creation of "The World Seed".
 * Sugou Nobuyuki Arrested.
 * ALO Suspended.

March

 * Akihiko Kayaba's whereabouts is known.

April

 * SAO Survivors Reunion being held in Agil's Cafe.
 * ALO Re-established under new moderators. All old ALO and SAO player data are transferred.
 * Establishment of New Aincrad inside the New ALO.
 * Gun Gale Online (GGO) Created.

May

 * Volume 4 - Chapter 9.
 * End of Fairy Dance Arc.

June

 * Meeting between Shinkawa Kyouji and Asada Shino.
 * Shino joined GGO.
 * Shino acquired "PGM Ultima Ratio Hecate II".

August

 * 1st “Bullet of Bullets ”.

October

 * 2nd “Bullet of Bullets”.

November

 * Volume 5 - Prologue.
 * "Death Gun" Murders.

December

 * Volume 5 - Chapters 1, 2.
 * Volume 5 - Chapter 3.
 * Volume 5 - Chapters 4-6.
 * 3rd “Bullet of Bullets”.
 * Volume 5 - Chapter 7.
 * Volume 6 - Chapter 7.2.
 * Volume 6 - Chapters 8-10.
 * Volume 6 - Chapters 11.
 * Volume 6 - Chapter 12.
 * Volume 6 - Chapter 13.
 * Volume 6 - Chapters 14, 15.
 * The Shinkawa Brothers are arrested.
 * Atsushi Kanemoto escapes.
 * Volume 6 - Chapter 16.
 * The Phantom Bullet meet their end.
 * End of Phantom Bullet Arc.

December 16th

 * Sinon joined ALO.

December 28th

 * Volume 8 - "Caliber".
 * Kirito acquired the sword "Excaliber".
 * Lisbeth acquired the hammer "Mjölnir".

December 31st

 * Silica Side Story: A Spot of Sunshine in the Winter

January

 * Volume 7 begins.

April

 * Volume 7 ends.
 * End of Mother's Rosario side story.
 * Accel World Volume 10 - "Versus "

May
May 18th
 * ME3 - "Ceramic Heart".

June

 * Beginning of Alicization Arc.

June 29th

 * Volume 9 - Alicization Beginning.
 * Kirito attacked by "Johnny Black,"

July

 * Volume 10 - Alicization Running.

July 1st

 * Asuna contacts Rinko about Kirito having disappeared, and Kikuoka's possible involvement.

July 5th

 * Rinko arrives on the Ocean Turtle
 * Volume 11 - Alicization Turning.

July 6th

 * Volume 12 - Alicization Rising.
 * End of Alicization Arc.
 * Gaiden - "Cradle of the Moon".

August

 * Gaiden - "There is but one Ultimate way".

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