The reign of Queen Elizabeth I of England & Wales, the last monarch before the kingdom united with Scotland, and a very prosperous one indeed.
The current queen was supposed to lead a second golden age, but that title faded away with the loss of the empire.
-n.- the time when a person hasn't cleaned their nose for a while. During this period of time, the nose becomes clogged and full of crusty, gold-colored boogers and is unable to breathe through their nasal canal.
Hey, you better blow your nose before you have a "golden age."