The development of public transport, especially rail, made daily commuting from the suburbs possible and led to most of the more prosperous people in the inner city areas relocating. As a result, the inner city areas became increasingly poor and also relatively cheap to live in. This a very general, simplified answer.
I believe it was the unfortunately under-appreciated and eccentric Nikolai Tesla.
Louis Pasteur found the cause of infectious diseases. The surgeons exploited this theory through careful cleaning of hands and all their body before the surgery.
The pattern that people make on the surface of the Earth, such as cities, roads, canals, farms and other ways people change the Earth. (answer is from: instech.tusd.k12.az.us/Core/glossary/ssglossary.doc )
it caan destroy surrounding habitats in cluding cities
The smog mainly hits cities. This shows that cities create more pollution.
Ghettos, the same as for any neighborhood that is segregated for ethnic or cultural reasons.
They regarded them as their own cities within cities.
Ghettos did not live anywhere, they where areas of cities that Jews where sent to. They where separate to the rest of the city and often were overcrowded and dirty
I believe the terms used were "slums" and "ghettos."
The Jewish ghettos in WWII, sometimes known as Jewish quarters were sections of cities which were segregated for Jews to live in. (These becoming the only places where Jews were alowed to live).
The ghettos.
Jewish Ghettos were run-down parts of major cities in which an excessive number of Jews would be packed into a very small, unsanitary space.
At that time they were encouraged to move into the cities, but in particular they had to move to a region called 'General Government'.
Ghettos preceded concentration camps. Concentration camps appeared during the Nazi era in Germany. Ghettos were present in the largest cities in Germany (and other large urban areas in other countries) well before that.
The (Jewish) ghettos were sections of certain towns and cities which were segregated for the habitation of Jews.
The Jews were forced to live in the ghettos of the German-controlled cities. Please also see the related question below.
The Jews were forced to live in the ghettos of the German-controlled cities. Please also see the related question below.