Ineed this answer ! based on the graph and your knowledge of u. s. history, how did the decade from 1850 to 1860 change philadelphia? it brought waves of new people seeking work, who demanded housing and services. it brought waves of new immigrants, who disliked the city and left before the 1900s. it saw increased growth due to people leaving farms and resulted in greater skilled labor. it saw increased growth in manufacturing and resulted in a more stable social structure.