Changing history?

This is the question which every living being on the earth will give a answer.
To change the history every one would try because every one have loss some thing in the history.

Having different choose but every people will try to change it and hence if i will get chance to change the history then i perfer for the loss of my best friend father

The feeling of lossing the shadow in ones life is very bad thus i would try this for him.
Because of this every person will love to change the history