gained power in Germany. Anti-Semitic laws were being introduced and the first concentration camp at Dachau

Dachau

Dachau is a town in Upper Bavaria, in the southern part of Germany. It is a major district town—a Große Kreisstadt—of the administrative region of Upper Bavaria, about 20 km north-west of Munich. It is now a popular residential area for people working in Munich with roughly 40,000 inhabitants...

 had been established. Wullschlager describes the early effects on art:
Beginning during 1937 about twenty thousand works from German museums were confiscated as "degenerate" by a committee directed by Joseph Goebbels

Joseph Goebbels

Paul Joseph Goebbels was a German politician and Reich Minister of Propaganda in Nazi Germany from 1933 to 1945. As one of Adolf Hitler's closest associates and most devout followers, he was known for his zealous oratory and anti-Semitism...

." Although the German press had once "swooned over him", the new German authorities now made a mockery of Chagall's art, describing them as "green, purple, and red Jews shooting out of the earth, fiddling on violins, flying through the air ...