Philology is the study of how language was developed throughout history.
History
The answer to thi question is Aristotle. We had to study it in my World History class.
Pre-Columbian-Contemporary Era
Some examples of fields of study include psychology, computer science, biology, economics, and history. Each of these disciplines focuses on a specific area of knowledge and uses different methodologies to explore and understand the subject matter.
Study your US History book
Without a doubt physicists study the history of science. By doing so it gives them a perspective on how the sciences were developed and perhaps provides a source of new scientific areas, especially is physics, to examine.
Field theory is the belief that in order for change to take place the total situation must be studied and figured. This was a term or method of study that was developed by Kurt Lewin.
Mary Leakey was an archeologist, I believe. She studied ancient human history by analyzing remains buried thousands of years ago, in central and eastern Africa.
Archaeologists are part of a larger field of study known as archaeology, which focuses on the study of human history and prehistory through the excavation of sites and analysis of artifacts and other physical remains. This field seeks to understand past cultures, societies, and behaviors through the examination of material culture.
Theodor Schwann studied many things in the field of Biology. He developed cell theory, discovered pepsin, and the nervous system.
A narrow field of study within a larger field is often called a sub-discipline.