The Golden Age is the period of Cybertron's prosperity before the Great War: shining cities, scientific breakthroughs and peace among all Transformers. At least, that's how the elite remember it.
Shining towers and dark mines
Modern takes — the IDW comics, Transformers: Prime, Transformers One — depict the Golden Age as a rigidly hierarchical society. The function a Transformer was 'born' with decided its fate: a miner had to stay a miner, and power belonged to a narrow circle of the Senate or a ruler.
How war grew from it
In that world a worker appears who demands equality — the future Megatron. At first his movement seems just, but gradually it becomes an army that believes only in force. Orion Pax, the future Optimus, also sees the injustice but chooses a different path.
Why it matters
The Golden Age explains why the Autobot–Decepticon conflict is so long-lasting. It is not simply good versus evil but a civil war rooted in real grievances. That's why the franchise's best stories rarely portray the Decepticons as 'just bad'.
