Student or Learner
The term "realism," which was originally used by the thirteenth-century scholastics to describe a belief in the reality of ideas, in the 19th century became associated with a group of writers who claimed it as a slogan for the movement. Friedrich Schiller was the first who used it as a literary term.
This is the first time which I have come across such a usage. I would like to ask if we can really say ''...the first who used...'' in such a context.