Reconstruction Period vs Reconstruction Era

Reconstruction Period and Reconstruction Era both are nouns.

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

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

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

Other synonyms of Reconstruction Period include Reconstruction.

Reconstruction Period (noun)	Reconstruction Era (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