(This in fact is mature content, but more in a serious way rather than gore. So also worthy to read by teens, like myself)
Oskar Schindler, savior of 1200 Crystal Ponies, venerated in the Crystal Empire as the greatest hero of ponykind, even though he is mostly forgotten outside of said city.
Centuries before the discovery and foundation of Equestria, in the old lands, the ponies were divided in three tribes, yet, they lived together in their own nations, alongside immigrated Crystal Ponies and other species.
One of these nations was Germaneny, which was ruled by a psychopath. He regarded the ponies of his nation as beings whose life values more than the lives of others. Not just that, but he wanted to exterminate everything that was not in his eyes purely pony, thus, to begin his so-called purification, he targeted the Crystal Ponies. Unfortunately, the ponies of his land were following him like he was the leader of a sect, and they did not shy away from exterminating them all, instead of just purging them.
In these years of utter havoc and genocide, there was only one light that shone brightly in the corrupted lands of terror, insanity and death.
This light was Oskar Schindler, a follower of said despot and tycoon, who was soon about to recognize the true value of life, friendship and harmony, and sacrificed everything in his best efforts to save his children from extermination.

Written by a Germane.