Petersburg Campaign vs Old Dominion

Petersburg Campaign and Old Dominion both are nouns.

Word	Noun	Adjective	Verb	Adverb
Petersburg Campaign	Yes	No	No	No
Old Dominion	Yes	No	No	No

Petersburg Campaign (noun)	Old Dominion (noun)
the final campaign of the American Civil War (1864-65); Union forces under Grant besieged and finally defeated Confederate forces under Lee	a state in the eastern United States; one of the original 13 colonies; one of the Confederate States in the American Civil War