History is the study of the past. In history, we study about the past lives of people. And How, When and Where, we come to know about the reigns of various Kings. How, When and Where they ruled their failures, their achievements and their conquests. It also gives us an idea about the state of art, literature, culture and civilization. In 1817, James Mill, a Scottish economist and political philosopher published a massive three-volume work, A History of British India. In this, he divided Indian history into three periods – Hindu, Muslim and British.