Crowded, dirty cities sprang up in europe during the 19th century due to the

Due to the shift in society more and more people were moving to areas where there was lots of civilization and the architectures were building the buildings so close together with no space it was home after home building after building and they did not have plumbing so they would go to the restroom in buckets and then just leave it on there streets and they would leave there trash on the street and dump it in there lakes and rats started to come and this is what led to the BLACK PLAGUE

1- in bradbury's  fahrenheit 451, all books are banned and burned upon discovery. in the nazi germany, books considered to be subversive to the regime would be burned to keep the population from generating ideologies that could challenge nazism.

2- was bradbury correct in his literal interpretation of  “where they burn books, they will also ultimately burn people.”? in some way, yes. when knowledge is not only limited, but also controlled, the people tied to it are led to their demise. just like in the novel, people in nazi germany who owned  subversive books were punished not only by the burning of their property, but also by the discrimination that followed after such a public form of consequence. if a person was seen being confiscated  subversive  books, they may be considered as an ally to the jews, which meant pretty much the same as being the enemy back then. because of the extreme exclusion and suffering that followed this punishment, it's almost like dying a slow death.

in this way, the phrase  “where they burn books, they will also ultimately burn people.” is both literal and figurative.

explanation:

mark brainliest and have a great day!