HISTORIAN
historian, historiographer
(noun) a person who is an authority on history and who studies it and writes about it
Source: WordNet® 3.1
Etymology
Noun
historian (plural historians)
A writer of history; a chronicler; an annalist.
One who studies or researches history.
(medicine) One who recounts their own medical history.
Source: Wiktionary
His*to"ri*an, n. Etym: [F. historien.]
1. A writer of history; a chronicler; an annalist.
Even the historian takes great liberties with facts. Sir J. Reynolds.
2. One versed or well informed in history.
Great captains should be good historians. South.
Source: Webster’s Unabridged Dictionary 1913 Edition