There were 3.3 million Jews living in Poland on the eve of WWII. They had created a rich and vibrant culture, with educational institutions, newspapers, political parties and cultural institutions. It was a very diverse population of religious, secular, urban and rural. By the end of the war, over 90% of the Polish Jews had been wiped out. What was prewar Jewish life like in Poland? What did we lose when this life was extinguished?