The Nazis hated the Jews. Jews were put into ghettos or already lived there. See related links below to tell the story.
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They showed off Theresienstadt to the Danish Red Cross as a model ghetto.
So that there was a place to put the Jews.
There were hundreds of ghettos, so please see the link. The Nazis kept the population of the Warsaw Ghetto constant at about 380,000-400,000. As the inhabitants died of starvation and disease more Jews were forced into the ghetto. The position was similar in Lodz Ghetto, with a population of about 160,000. From 1942 onwards, the ghettos were gradually emptied, as the inhabitants were taken to extermination camps.
The Warsaw ghetto was the largest ghetto in Poland. More than 400,000 Jewish people were shoved into 1.3 square miles. It was centered in the Polish capital, located in Nazi occupied Europe.
The amount of food allowed into the ghetto by the Nazis was grossly insufficient. The inhabitants smuggled in food and manufactured (workshop, craft) good to pay for the food. They also smuggles in raw materials so they could make things to exchange (barter, swap) for food again.
It helped us to establish a foothold in Europe so that we could put an end to the terror and evil that were the Nazis.
Traditional ghettos were seen as permanent places for Jews to live (separated from the rest of the population). The Nazis, on the other hand, saw the ghettos as temporary - as staging posts in the Final Solution. The last 'traditional' Jewish ghetto - that in Rome - had been opened (liberated) in 1870. The Nazis reintroduced ghettos for Jews in Poland, Lithuania and Latvia in 1939-41 and deliberately kept the food and water supplies inadequate.
Nazis.
The leadership of each ghetto (the Judenrat) was chosen by the Nazis.
The biggest ghetto established by the Nazis in World War 2 was the Warsaw Ghetto, which at one time had about 400,000 inhabitants.
The buildings were already in existence when the Nazis invaded Poland in 1939. It was the Nazis who turned the area into a ghetto. Please see the related question below.
The first German built ghetto was in occupied Poland at Piotrków Trybunalski in October 1939. The Germans went on to establish at least 1,000 ghettos for Jews. The Warsaw and Lodz ghettos were established in 1940.
They set it up to be a 'model ghetto' where conditions were better.
They did some things and some stuff.
It was known as a ghetto.
5 years
They Started getting education among themselves.
Nobody. There was no rescue from the Warsaw Ghetto and it was completely destroyed by the Nazis during the uprising of April-May 1943.
The Warsaw Ghetto.