One cause of the European immigration in the age of exploration was a potato famine in Ireland. Many Irish suffered and decided to move to america because we had potatoes. Potatoes originally came from America, and were introduced to Europe because of the Colombian Exchange. Many people especially Catholics thought they were evil.<span />
Political Bosses were the leaders of the political machines, they grew wealthy because they assigned government contracts asking for favors like votes or promoting campaign on their favor, they also controlled financing of campaigns to later ask for recompense. By doing this they reached position in the local government of cities, counties and states and this way concentrated wealth around corruption.
C. to make it easier to move goods from place to place