Reconstruction Era vs Reconstruction

Reconstruction Era and Reconstruction both are nouns.

Word	Noun	Adjective	Verb	Adverb
Reconstruction Era	Yes	No	No	No
Reconstruction	Yes	No	No	No

As nouns, Reconstruction Era and Reconstruction are synonyms defined as:

Reconstruction Era and Reconstruction: the period after the American Civil War when the southern states were reorganized and reintegrated into the Union; 1865-1877

Other synonyms of Reconstruction Era include Reconstruction Period.

Reconstruction Era (noun)	Reconstruction (noun)
the period after the American Civil War when the southern states were reorganized and reintegrated into the Union; 1865-1877	the period after the American Civil War when the southern states were reorganized and reintegrated into the Union; 1865-1877