Psychology:-

Psychology is an academic and practical field relating the scientific study of mental procedures and conduct. Psychology as well refers to the application of such knowledge to a variety of spheres of human action, with troubles of persons' daily lives and the treatment of mental illness.

Psychology varies from the other social sciences — anthropology, economics, political science, and sociology — in looking for to make clear the mental procedures and conduct of individuals. Psychology differs from biology and neuroscience in that it is mainly concerned with the communication of mental procedures and actions on an entire level, as opposed to learning the biological or neural procedures themselves. Biological psychology is the scientific learning of the biological basis of conduct and mental conditions.

History and Pre history

Traditionally, the study of history was limited to the written and spoken word. However, the rise of academic professionalism and the creation of new scientific fields in the 19th and 20th centuries brought a flood of new information that challenged this notion. Archaeology, anthropology and other social sciences were providing new information and even theories about human history. Some traditional historians questioned whether these new studies were really history, since they were not limited to the written word. A new term, prehistory, was coined, to encompass the results of these new fields where they yielded information about times before the existence of written records.

In the 20th century, the division between history and prehistory became problematic. Criticism arose because of history's implicit exclusion of certain civilizations, such as those of Sub-Saharan Africa and pre-Columbian America. Additionally, prehistorians such as Vere Gordon Childe and historical archaeologists like James Deetz began using archaeology to explain important events in areas that were traditionally in the field of history. Historians began looking beyond traditional political history narratives with new approaches such as economic, social and cultural history, all of which relied on various sources of evidence. In recent decades, strict barriers between history and prehistory may be decreasing.