History has its own effective importance. It is seen that people live in the current time and worry about the future. However, history belongs to the study of past, which explains number of ordeals and occasions that help us to plan our present and future. It is the branch of science which explains the students about the different geographical, political, social and cultural features of the past history. Before studying any subject, everybody needs proper justification so it can make person attentive to that theme. The world history describes number of incidents such as economical ...