'Golden age' is typically used to mean a historic age of comparative greatness from which society has since fallen. See the idiomatic vs. the mythological mean

'Golden age' is typically used to mean a historic age of comparative greatness from which society has since fallen. See the idiomatic vs. the mythological meaning on Wiktionary: https://en.m.wiktionary.org/wiki/golden_age https://en.m.wiktionary.org/wiki/golden_age