Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Holocaust, also known as haShoah was the officially sanctioned genocide that took the lives of three million Polish Jews in World War II, destroying an entire civilization. Only a small number survived or managed to escape beyond the reach of the Nazis. The Holocaust in Nazi-occupied Poland was an event involving the implementation of German policy of systematic and mostly successful destruction of indigenous Polish-Jewish population.