Although many German Nazi soldiers knew exactly where they were sending persecuted groups in the Holocaust, some did not. The soldiers were the bad guys of the war, but later on when they were given a new perspective and shown exactly what was happening in Concentration camps, and their perspective and personal history was changed. On the other hand, this explained the actions they took during the war. (
http://www.slate.com/blogs/the_vault/2013/06/11/photo_german_soldiers_react... )
Ferguson (and other current shootings issues) - As we attain different points of view in these stories, history begins to change. In this instance, for many people, different perspectives change what happened- the word “explain” isn’t necessarily accurate in this instance.
Female authors overlooked in top list, now looked at - As different perspectives and points of views are added into what we see as historical literature, history begins to be explained in different detail, and the details of events change too.