African nation vs Northern Rhodesia

African nation and Northern Rhodesia both are nouns.

Word	Noun	Adjective	Verb	Adverb
African nation	Yes	No	No	No
Northern Rhodesia	Yes	No	No	No

African nation (noun)	Northern Rhodesia (noun)
any one of the countries occupying the African continent	a republic in central Africa; formerly controlled by Great Britain and called Northern Rhodesia until it gained independence within the commonwealth in 1964