Why did so many jews come to the city of krakow from the polish countryside? ?

The Jews were living in the rural area were instructed to the utmost cities, including Krakow, by the Germans. They were enforced to migrate and register their families by the Nazi regime because on that era it has brought exhaustive and formidable social, economic and collective change to the German Jewish group.

The correct answer is "  it was believed that the dispute emerged in 632 just after the death of the prophet muhammad."