During the development of many New England cities, the building was done around a common area (Ex. Main ST.), Which greatly increased trade and made interactions far easier for everyone. Spurring the economy.
Hope this helps =]
Hitler's actions in Germany were absolutely despicable...he is the person that lead the nazi party and instituted the mass killing of millions of jews, homosexuals, disabled and elderly citizens and many more. He was able to rise to power since Post World War I Germany was in absolute shambles and the people were furious over the government that was seemingly doing nothing about it. His actions started small against the jews such as forcing all of them to register and wear a star of david in public. Then he started forcing all of the jews out of their homes and in these poor towns before he started sending them to concentration camps.
The answer might be organization<span> of the Petroleum Exporting Countries </span>