A timeline of events of the Battle Network series (contains some events related to Mega Man Star Force).Unmarked Spoilers!

B.C.

1XXX B.C.

The Atlampian Civilization of Sink Island is at war with another nation.
- Dr. Troy creates the Trojan Horse Cyber Weapon.
- A young female Atlampian named Sherrice is put into cold sleep along with an older male Atlampian.
The Trojan Horse is used and devastated both sides of the conflict; The Atlampian Civilization collapse.
Through a hole in time and space originating from the era of 20XX, Nobody arrives sometime after the fall of the Atlampian Civilization.
- Nobody prepares time released E-mails for Lan Hikari and MegaMan.EXE to help stop the himself in the era of 20XX and to finally destroy the Trojan Horse.
- Nobody finds Sherrice's mother's heirloom and has it kept away to be found in the era of 20XX for the Sherrice in that era.
Nobody lives out the rest of his life with the survivors of the Atlampian Civilization in this era.

Tadashi Hikari and Dr. Wily develop Soul Net, but leave it incomplete for the next generation to finish.
Tasashi Hikari's internet technology is developed in favour over Dr. Wily's robotics research.
Bass.EXE and Alpha are developed.
The Alpha Revolt occurs. Bass.EXE is severely damaged, and Alpha is contained after it swallows the net.
Dr. Wily adopts Baryl and develops Colonel.EXE.
Baryl's father dies; Colonel.EXE's emotions are split apart and formed into Iris.EXE.
Initial clash of the Cybeasts, leading to both being sealed in the Underground.
Lan and Hub Hikari are born; Hub dies from HBD but is turned into a NetNavi, MegaMan.EXE by his father.

Sherrice and the male Atlampian awakens sometime in this era.
- The male Atlampian discards his original name and renames himself as Nobody.
- Sherrice takes a liking for period pieces and creates her own NetNavi, RideMan.EXE.

Events of Battle Network 1 and Operate Shooting Star.
1 month after the end of BN1; Events of Network Transmission.
Events of Battle Network 2.
- MegaMan.EXE gets the Style Change ability.
- Net Mafia Gospel is dissolved.
Events of Battle Network 3.
- Alpha is destroyed.
- MegaMan.EXE dies and is revived.
- Bass.EXE fuses with the remains of the Gospel Multibug Organism to survive.
Events of Battle Chip Challenge.
Events of Battle Network 4.
- MegaMan.EXE gets the Double Soul ability.
Events of Phantom of Network.

Events of Battle Network 5.
- Nebula is dissolved.
Events of Legend of Network.
- MegaMan.EXE gets the Trans Arm ability.
- The Trojan Horse is defeated.
  - Nobody is sent 3000 years into the past.
Events of Battle Network 6.
- MegaMan.EXE gets the Cross System and Beast Out abilities.
- Cybeasts Gregar and Falzar are defeated.

Lan and Mayl are married and have a son named Patch who has the NetNavi named MegaMan Junior, his "cousin" who is the "son" of MegaMan.EXE and Roll.EXE.
Dex is mayor of ACDC.
Yai takes over her family's company.
Mick becomes a teacher in Central Town of Cyber City.
Chaud becomes the leader of the Official Net Battles and/or runs his family's company.
Sometime later, Dentech Academy holds a 20-year reunion, with MegaMan arranging for the grown-up cast to meet, with mixed replies if they'll be able to attend and Patch participates in a NetBattle tournament the same day as the event, leaving Mayl out of the picture while supervising him. On the day of the reunion, however, the party gets crashed by a new generation of viruses who are combatted by Lan's reunited gang who managed to make it after all.

Lan creates the Brother Band and made the way for the EM technology of the Star Force series.