And other people, including several hundred thousand Romani often referred to as gypsies, several hundred thousand people with disabilities, many thousands of homosexuals were all put to death during the Holocaust. Now we've covered a lot of world history, and a lot of it, unfortunately, has a lot of death, a lot of destruction, and sometimes targeting people for their ethnicity. But never in world history have we seen something at this scale. And because it seemed to be a relatively new concept, a term was coined, genocide. It was coined by Raphael Lemkin, who was a Holocaust survivor, had 49 members of his family killed during the Holocaust. And it means killing of a people, geno, coming from a people or a family, and side, killing. But maybe even more interesting than the word definition itself is thinking about why this actually happened, and maybe even more importantly, how society can avoid it.