The Greek Dark Ages was a period in Ancient Greece characterized by societal collapse of civilization, where the palaces and cities of the Mycenaeans were either destroyed, abandoned, or both.
At around the same time, the Hittite civilization in modern-day Turkey also suffered serious disruption and collapse, with cities from Troy to Gaza being destroyed.
Moreover, in Egypt, the New Kingdom fell into disarray, leading to the Third Intermediate Period of Egypt.
They all must have had demokrats too.
Thanks. There was a disruption, but there was no Greek dark age or centuries-long gap. There was never a group of Sea Peoples who destroyed whole civilizations. If there were, they did it without leaving any trace of themselves, such as characteristic burials, inscriptions, armor or other weapons, and most curiously, no wrecks of seagoing vessels of any kind, anywhere.