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History is more than the old stories， myths， or an academic subject for the scholars to write papers or books。 Like many other sciences， history not only tells people what have happened before but also functions as a compass to lead human beings in the right course。
One of the most important roles that the study of history plays in solving the current human affairs is that it functions as a rearview mirror。 It shows what is behind you so that you can move forward easily。 History is， in essence， the people and their activities， both physical and psychological， in the past。 If we accept that the past and the present are not entirely separated， then we have to admit the value of history。 Our ancestors have suffered the same troubles， such as disease， disaster， or devil， as what we are confronted with， and their experiences， knowledge， and understanding of nature provide us with invaluable wisdom。
It is true that a fewer people claim that history helps people little in unlocking the current problems。 They might give a long list of assumed evidence。 For instance， they say that environmental issues are new， globalization unprecedented， political or economical conflicts fresh， and the like。 Nevertheless， they have failed to see that in essence these problems are what our forefathers have experienced。 Today people are suffering the same old trouble of poverty， wars， and mental crisis。
