The Discipline Attribute of the National Geography Study in Historical Period

The attributes of one subject is decided by the object and contents which to be researched.According to this,it is reasonable to refer to the study of national geography in historical period as the Historical National Geography,and consider it as a branch of the Historical Geography.In object and contents,there are no differences between National Historical Geography and Historical National Geography.It is unnecessary to take the study of national geography in historical period as National Historical Geography,and the National Historical Geography as a new independent subject is not appropriate.Because the Historical National Geography does not only study the phenomenon of human geography but also study the phenomenon of physical geography,National Historical Geography will be up for the independent new discipline is unreasonable.