Jewish ghettos in Europe were neighbourhoods of European cities in which Jews were permitted to live. In addition to being confined to the ghettos, Jews were placed under strict regulations as well as restrictions in many European cities.[1] The character of ghettos fluctuated over the centuries. In some cases, they comprised a Jewish quarter, the area of a city traditionally inhabited by Jews. In many instances, ghettos were places of terrible poverty and during periods of population growth, ghettos had narrow streets and small, crowded houses. Residents had their own justice system. Around the ghetto stood walls that, during pogroms, were closed from inside to protect the community, but from the outside during Christmas, Pesach, and Easter Week to prevent the Jews from leaving at those times.
Isolation means isolated from others, therefore your away from others, or disclosed.
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The controversy of women getting paid less than men was because people thought that women IS NOT the same as men. In the past, women were looked at as property or some fragile little thing that ONLY has the job of carrying children in the family and take care of the house. Also this depends on what timeline you are looking at, but women would often have less education compared to men simply because of their gender. Women are expected to be "proper" whereas men "manly." Now in the present, some men still have that traditional thoughts like how women can not be as great as men, which is why they would be payed less.