Elizabethan era vs Elizabethan age

Elizabethan era and Elizabethan age both are nouns.

Word	Noun	Adjective	Verb	Adverb
Elizabethan era	Yes	No	No	No
Elizabethan age	Yes	No	No	No

As nouns, Elizabethan era and Elizabethan age are synonyms defined as:

Elizabethan era and Elizabethan age: a period in British history during the reign of Elizabeth I in the 16th century; an age marked by literary achievement and domestic prosperity

Elizabethan era (noun)	Elizabethan age (noun)
a period in British history during the reign of Elizabeth I in the 16th century; an age marked by literary achievement and domestic prosperity	a period in British history during the reign of Elizabeth I in the 16th century; an age marked by literary achievement and domestic prosperity