The Holocaust was one of the worst genocides in history, in which Adolph Hitler's Nazi Germany sought to exterminate the Jewish and Roma/Sinti peoples in Europe and North Africa. The genocide killed over six million Jews, one million Roma and Sinti, and apx. four million others deemed undesirable to the Third Reich during World War II. The Holocaust is called the Shoah among Jews. It is called the Porajmos or Samudaripen among Roma/Sinti.