birthplace vs place of origin

birthplace and place of origin both are nouns.

Word	Noun	Adjective	Verb	Adverb
birthplace	Yes	No	No	No
place of origin	Yes	No	No	No

As nouns, birthplace and place of origin are synonyms defined as:

birthplace and place of origin: where something originated or was nurtured in its early existence

Other synonyms of birthplace include cradle, provenance, provenience.

birthplace (noun)	place of origin (noun)
the place where someone was born	where something originated or was nurtured in its early existence
where something originated or was nurtured in its early existence