Question

What can a historian derive from such surveys ?

Answer 1

Historian can derive many of the things from the surveys like  they can write history of that time and know more about the country of that time

Answer 2

To the historians, archeological surveys are important because it deals with the past. A historian can come across certain information like – the ancient civilizations, the behaviors of human beings in the past, structure of the society, the culture and the traditions, habits and their livelihood.