Approximate timeline of the Buffer Zone/Fighting Dreamers (as of what's revealed in canon)
Prehistory
Birth of the Dreamers (80,000 years before canon)
- Cats are beginning to get themselves domesticated and sleeping more, resulting in the creation of dream worlds (like other sentient beings). But they're the first to get a communal dreamworld going.
- Frost, Spark, and Ember, become the first 3 Dreamer cats to exist in a shared dreamworld
Current Canon
October 2005
CHAPTER 1- Stewie starts his recruit training
- Stewie makes a bet with Flint
CHAPTER 2
- Ghost, the strange kitten, is discovered
- Stewie encounters an aggressive hooded cat