Victorian era vs historic period

Victorian era and historic period both are nouns.

Word	Noun	Adjective	Verb	Adverb
Victorian era	Yes	No	No	No
historic period	Yes	No	No	No

Victorian era (noun)	historic period (noun)
a period in British history during the reign of Queen Victoria in the 19th century; her character and moral standards restored the prestige of the British monarchy but gave the era a prudish reputation	an era of history having some distinctive feature