Nazi concentration camp at Plaszow, located in the Podgorze district, 10 kilometers outside the city center of Krakow.
Over 1,000 Jews that were saved by getting employed in Schindler's factories instead of getting tortured at the Auschwitz gas chamber.
Yes there is still many of Jews that was on the list alive
Before the ghetto I imagine it was neutral.
There was almost nothing that Jews did not take from other Jews, especially in the Ghettos.