Historian
A historian was a scholar who researched and interpreted past events in the field of study known as history. Those who passed down their history via word of mouth rather than writing it down were known as oral historians. ()

Federation starships of the 23rd century could include historians among their officers. Lieutenant Marla McGivers, for instance, served as a historian aboard the . When the Enterprise encountered the 20th century sleeper ship , Captain Kirk commented that this was a chance for "that historian to do something for a change" ()

John Gill noted that historians were not immune to making the same mistakes as those they studied. ()

Whalen was a 20th century historian and fiction expert who served aboard the  in 2364. ()

Berlinghoff Rasmussen lied in 2368, saying every historian from his "time" knew the bridge of . Jean-Luc Picard doubted that the layout of his ready room could possibly be of interest to them. () 

While time travelling back to 2268, Julian Bashir expressed confusion over Miles O'Brien wearing a red uniform, prompting the engineer to ask if he knew anything about that time period. Bashir responded with, "I'm a doctor, not a historian." ()

In 2364, a Ferengi historian collected information pertaining to the history of space travel within the Federation, with the intention of selling it as a nostalgic gift. One of the photographs from the database showed an elderly Shannon Janeway and her family. Upon being presented with the image by Neelix in 2375, Kathryn Janeway remarked that she would have been his first customer.()

Noted historians 
Aleek-Om
Erickson
John Gill
Grey
Inad
Jev
Marla McGivers
Jean-Luc Picard
Berlinghoff Rasmussen (fake)
Tarmin
Whalen

External links 
 
 

de:Historiker
fr:Historien
Scientific occupations