Daria, The lesson for all of us is to recognize the destruction and slaughter of human beings on a mass scale, includes examples before and after The Holocaust (Shoah). More than eight million indigenous people died, primarily through the spread of Afro-Eurasian diseases., in events described as the first large-scale act of genocide of the modern era. The Cambodian genocide, systematic persecution and killing of Cambodians by the Khmer Rouge under the leadership of Communist Party general secretary Pol Pot, resulted in the deaths of 1.5 to 2 million and sadly, there are other such tragic examples..