For number 6 I think it was the Star of David
They agreed either because they were forced by their chief or the Spaniards or because they wanted to.
It was through Propaganda and Silencing of people lead to people denying the fact that the holocaust was happening, and only rumors about concentration camps where among ally troops until they finally liberated them.
The holocaust was the mass genocide of jewish people by the nazi party so the so called "superior" german race could rule over Europe. Nazis beliwved jews were the rats that were investing Europe.
Writers help the urban poor by writing about their lives and their difficulties in populated cities and poor hygiene conditions. Which brought the attention of the upper class and the government to reform and improve the lives of the working class.
