in the first place vs in the beginning

in the first place and in the beginning both are adverbs.

Word	Noun	Adjective	Verb	Adverb
in the first place	No	No	No	Yes
in the beginning	No	No	No	Yes

As adverbs, in the first place and in the beginning are synonyms defined as:

Other synonyms of in the first place include earlier, originally, to begin with.

in the first place (adverb)	in the beginning (adverb)
of primary import	with reference to the origin or beginning
before now	before now