The term Golden Age comes from Greek mythology, and is part of the description of temporal decline of the state of peoples through five Ages, Gold being the first and the one during which the Golden Race of humanity lived.
Those living in the first Age were ruled by Kronos, after the finish of the first age was the Silver, then the Bronze, after this the Heroic age, with the fifth and current age being Iron. With the exception of the Heroic Age, each succeeding Age was worse than the one that went before.
Golden Age denotes a period of primordial peace, harmony, stability, and prosperity. During this age peace and harmony prevailed, people did not have to work to feed themselves, for the Earth provided food in abundance. They lived to a very old age with a youthful appearance, eventually dying peacefully, with spirits living on as guardians.
Humanity lived like gods without sorrow of heart, remote and free from toil and grief: miserable age rested not on them; but with legs and arms never failing they made merry with feasting beyond the reach of all devils.
When they died, it was as though they were overcome with sleep, and they had all good things; for the fruitful Earth unforced bare them fruit abundantly and without stint. They dwelt in ease and peace.