Battle of Fredericksburg vs American Civil War

Battle of Fredericksburg and American Civil War both are nouns.

Word	Noun	Adjective	Verb	Adverb
Battle of Fredericksburg	Yes	No	No	No
American Civil War	Yes	No	No	No

Battle of Fredericksburg (noun)	American Civil War (noun)
an important battle in the American Civil War (1862); the Union Army under A. E. Burnside was defeated by the Confederate Army under Robert E. Lee	civil war in the United States between the North and the South; 1861-1865