DEFINITION: GHETTO
Quarter of a city where minority group members live because of poverty or social pressure; in medieval times an urban section where Jews traditionally were required to live; segregation of Jews in ghetto made enforceable by law under Pope Paul IV in Rome 1555; was gradually abolished in 19th century, but reestablished by Nazis during World War II.
(Source: Britannica School Online, https://school.ebonline.com/levels/middle/article/Ghetto/311402)