Is History and the study of it necessary?

History is the study of the past.Yo must know the past to enable yourself to know what your ancestors had done or built, and how they suffer during the World Wars. You also learn History to know things in the past, so that you will also not make the same mistake that other of the past had made. It is necessary to study History as you be more expose to more things and gain more general knowledge.You can even discover things or information that you are not familiar with or things that historians or other people had never even found out.