What is the expositon in fences?

In August Wilson's play "Fences," the exposition introduces the main character, Troy Maxson, a former Baseball player who now works as a garbage collector in 1950s Pittsburgh. The audience learns about Troy's struggles with his past, including his experiences with racism and his complicated relationships with his family, particularly his son Cory. The setting and context reveal the societal challenges faced by African Americans during this time, setting the stage for the central conflicts of the play. Through Troy's interactions with his family and friends, the groundwork is laid for the themes of ambition, disappointment, and the quest for identity.