Auschwitz
In the Holocaust the Nazis did not 'release' Jews. Until August 1941 Jews in Germany and some German-occupied countries were allowed to emigrate, if they had somewhere to go to and could actually get there. In September 1941, they were forbidden to leave as there was a change of policy.
Some time in the course of 1941, probably in September-October.
In Germany and most Nazi-occupied countries - September 1941 or slightly later. In Poland, it had been introduced in October 1939.
Wearing the Star of David became compulsory for Jews in the Netherlands in September 1941.
Nazi policy towards the Jews (or at least towards West European Jews) changed in August/September 1941. Until then the Nazis wanted Jews out of Germany and other West European countries under their control. From September 1941 onwards the policy changed to extermination. The first deportations of Jews from Germany to killing fields in Latvia and Belarus began in October 1941. (It is worth noting that the requirement that Jews in Germany and other Nazi occupied countries was introduced in September 1941. In Poland, where Nazi policies towards the Jews became harsher earlier, it had been introduced a year earlier). The idea that the Nazis had always wanted to exterminate the Jews and had some kind of blueprint for the Holocaust already in the 1920s is one of those popular myths and went virtually unchallenged from 1945 till about 1960. Nazi policy became more extreme over time.
In the Holocaust the Nazis did not 'release' Jews. Until August 1941 Jews in Germany and some German-occupied countries were allowed to emigrate, if they had somewhere to go to and could actually get there. In September 1941, they were forbidden to leave as there was a change of policy.
Some time in the course of 1941, probably in September-October.
In Nazi-occupied Poland in September 1940. In other Nazi occupied countries and in Germany, in September 1941.
An Appeal to the Jews of the World - 1941 was released on: USA: 1941 (limited)
In Germany and most Nazi-occupied countries - September 1941 or slightly later. In Poland, it had been introduced in October 1939.
Wearing the Star of David became compulsory for Jews in the Netherlands in September 1941.
Nazi policy towards the Jews (or at least towards West European Jews) changed in August/September 1941. Until then the Nazis wanted Jews out of Germany and other West European countries under their control. From September 1941 onwards the policy changed to extermination. The first deportations of Jews from Germany to killing fields in Latvia and Belarus began in October 1941. (It is worth noting that the requirement that Jews in Germany and other Nazi occupied countries was introduced in September 1941. In Poland, where Nazi policies towards the Jews became harsher earlier, it had been introduced a year earlier). The idea that the Nazis had always wanted to exterminate the Jews and had some kind of blueprint for the Holocaust already in the 1920s is one of those popular myths and went virtually unchallenged from 1945 till about 1960. Nazi policy became more extreme over time.
The first experimental gassings took place in September (?) 1941. Routine, large-scale gassings started at Chelmno ob 8 December 1941.
In September 1941 - the same date as elsewhere in Germany.
nothing.
In German occupied Europe Jews were segregated by law.
On September 29-30, 1941, the German Einsantzgruppen (a military division tasked with murdering Jews) killed 33,771 Jews in the third largest single massacre of Jews in the Holocaust. There were other "smaller" Einstazgruppen attacks on Jews in the same area as well.