Africa vs Southern Rhodesia

Africa and Southern Rhodesia both are nouns.

Word	Noun	Adjective	Verb	Adverb
Africa	Yes	No	No	No
Southern Rhodesia	Yes	No	No	No

Africa (noun)	Southern Rhodesia (noun)
the second largest continent; located to the south of Europe and bordered to the west by the South Atlantic and to the east by the Indian Ocean	a landlocked republic in south central Africa formerly called Rhodesia; achieved independence from the United Kingdom in 1980