Eolithic vs Eolithic Age

Eolithic and Eolithic Age both are nouns.

Word	Noun	Adjective	Verb	Adverb
Eolithic	Yes	No	No	No
Eolithic Age	Yes	No	No	No

As nouns, Eolithic and Eolithic Age are synonyms defined as:

Eolithic and Eolithic Age: the earliest part of the Stone Age marked by the earliest signs of human culture

Eolithic (noun)	Eolithic Age (noun)
the earliest part of the Stone Age marked by the earliest signs of human culture	the earliest part of the Stone Age marked by the earliest signs of human culture