Abstract
'Man is by nature a political animal', arguing on that Aristolte induced the existence of political communities. Men lived in communities for decades. However, man's living condition has changed with the passage of time. One landmark change was in his environment. Each evolution was a step towards the achievement of our political structure: the modern state. Historical sociology is the necessary tool to study these changes. This discipline was born in the 1970s thanks to the convergence of history and sociology and tries to think social reality. History and sociology are two sides of the same social reality so 'historical sociology is the study of the past to find out how societies work and change'.The historical sociology was developed in two disciplines: first in sociology and then in political science. In the 1970s the behaviorist wave brought about a scientific methodology. According to this approach, the principal mistake of many disciplines is to study one part of a subject. It means to concentrate on one thing. Behaviorism puts emphasize on the whole and the whole becomes more important that the sum of its parts.
