The following question refers to “mother to son”: the words “tacks,” “splinters,” and “boards torn up” are most likely references to

Those words are references to the difficulties she’s faced in life. hence the “life ain’t been no crystal stair”

Contributing factors  leading  to the harlem renaissance were the great migration of african americans to northern cities, which concentratedambitious  people in places where they could encourage each  other, and the first world war, which had created new industrial work opportunities for tens of thousands of people.

The growth of the empire continued to increase their confidence.