This is the canon timeline, taking all universes and major events into account.
Universe: Generation 3
Universe: Generation 4
100 years after the creation of the universe, Carolina emerges.
Universe: Generation 3
100 years after the creation of the universe, York emerges.
Universe: Generation 4
Universe: Generation 3
Year 0 in Emvi
Universe: Generation 2
Year 202 in Emvi
Universe: Generation 2
All within the same year, the previous seven sages were all massacred by Shem.
Universe: Generation 3
Year 690 in Soul Strike
Soul Strike uses a different calendar system, and its planet has different day/year lengths, etc. This is why some events in Soul Strike may not seem to line up with Earth time as they should.
Universe: Generation 3
Year 695 in Soul Strike
Soul Strike uses a different calendar system, and its planet has different day/year lengths, etc. This is why some events in Soul Strike may not seem to line up with Earth time as they should.
Universe: Generation 3
When Unity is established as the strongest SuperSong to ever live, and the cause of Necessary Evil's jealousy.
SuperSongs uses a different calendar system than other Generation 2 worlds, but it was never fully established.
Universe: Generation 2
Universe: Generation 3
Universe: Generation 1
Universe: Generation 1
SuperSongs uses a different calendar system than other Generation 2 worlds, but it was never fully established.
Universe: Generation 2
The Adventures of Fatman: Super-Sized.
Universe: Generation 3 and Generation 4
The Adventures of Fatman: Super-Sized.
Universe: Generation 1
Universe: Generation 1
Universe: Generation 2
Universe: Generation 4
Universe: Generation 2
Year 1000 in Emvi
Universe: Generation 2
SuperSongs uses a different calendar system than other Generation 2 worlds, but it was never fully established.
Universe: Generation 2
Universe: Generation 2
Imagination Hub
Sam is defeated, and Gabe (Gaboza) subsequentially wipes the event from even happening in the first place.
Imagination Hub
Universe: Generation 3 and Generation 4
Year 1002 in Emvi
Universe: Generation 2
Uncovered: Resurfaced.
Year 1002 in Emvi
Universe: Generation 2
Universe: Generation 2
Universe: Generation 2
This story's timeframe is unlikely to change, but not set in stone.
Universe: Generation 4
SuperSongs uses a different calendar system than other Generation 2 worlds, but it was never fully established.
Universe: Generation 2
Everyone is taken from their times via a series of portals, and a timeline deviation happens where the universe eventually resets.
Universe: Generation 2 (deviated)
Universe: Generation 3
Universe: Generation 3
Universe: Generation 3
SuperSongs uses a different calendar system than other Generation 2 worlds, but it was never fully established.
Universe: Generation 2
Universe: Generation 3
Universe: Generation 3 (flipside)
Universe: Generation 3 (canon retcon, post-IYI remake)
Universe: Generation 3 (flipside)
Universe: N/A
Universe: Generation 4
Universe: Generation 3
Universe: Generation 3
Universe: Generation 3
SuperSongs uses a different calendar system than other Generation 2 worlds, but it was never fully established.
Universe: Generation 2
Year 1102 in Emvi
Universe: Generation 2