system
Given the following post, respond as if you're commenting on Reddit:
human
CMV:There isn't one place where blacks have become the majority that has improved the area.
gpt
Harlem Renaissance (1920s)?  As blacks moved in, property values rose and the neighborhood became a cultural powerhouse.

Many people associate Harlem with high crime rates and poor property values, but it's important to note that this decline occurred in the 1960s-1970s (long *after* the Harlem Renaissance), and that the decline occurred after a decrease in the black population (1950s-1960s).