historian historian /hɪˈstɔriːən/

noun

1. () (history) a person who is an authority on history and who studies it and writes about it  ( historiographer , historian )
   (history) a person who is an authority on history and who studies it and writes about it
     The historian meticulously researched and documented the events of the past.
   The historian meticulously researched and documented the events of the past.