Why do you think burnett is convinced that "future generations will condemn" the forced removal of the cherokee? was he corect?

Yes.  To gain more land, they displaced the real owners from their ancestral home.  Many were driven out against their will and had to endure a terrible journey where many of them died.  He felt that it was an injustice and today many people share that point of view.

the gutenberg bible was and about 180 copies were sold/made