historian vs scholarly person

historian and scholarly person both are nouns.

Word	Noun	Adjective	Verb	Adverb
historian	Yes	No	No	No
scholarly person	Yes	No	No	No

As nouns, scholarly person is a hypernym of historian; that is, scholarly person is a word with a broader meaning than historian:

historian: a person who is an authority on history and who studies it and writes about it
scholarly person: a learned person; someone who by long study has gained mastery in one or more disciplines

Other hypernyms of historian include bookman, scholar.

historian (noun)	scholarly person (noun)
a person who is an authority on history and who studies it and writes about it	a learned person; someone who by long study has gained mastery in one or more disciplines