The statement "To properly study the human race's past, all five types of historians should be used," is true.
A historian studies and writes about the past, and is considerd as an authority on it. Historians carry out the continuous, methodical narrative and research of past events regarding to the human race; and also the study of all history in time.
The are concerned with the research of the life, the culture, traditions, sites, events, and the race’s of the past seeking to understand what the events of the past and to avoid the same future mistakes.
