Four blocks which I had to analyze are between Olive St and Prospect Ave on 35th St. From 1950 to 2010, there are two big changing in this area. Firstly, I recognized that throughout the time, population of this area was decreased clearly and the ratio of white people was also decreased. The second point is educational development and this point is also the most effective point of this area. Throughout 1950 to 2010, the ratio of college graduation was increased mostly ( From 19.6% to 29.6% and From 17.7% to 25.9%). This point was the foundation for median household income increasing. From the increasing of income, the median housing value was also increased and make this area becomes more valuable.