Adding something new to the understanding of To Kill a Mockingbird (1960), which is considered a twentieth-century classic, would be nearly impossible if not for the outlook of new historicism. Through a new historicist analysis of Harper Lee’s literary text parallel to non-fictional texts relating to the American justice system and civil rights, this essay explores how race affects U.S. institutions and society. Lee’s novel is contextualized by delving into the American South of the 1930s, American society and politics in the1960s and the racial landscape in America today, connecting them through the experiences of racial bias within the justice system and the civil rights movement. The essay explores the racial and cultural norms that governed the American justice system at the set time of the story. It analyzes the time of publication and the American society in which the novel made such an impact on the racial debate. Finally, it looks at the impact of the novel and its connection to the civil rights movement of the 1960s, the Black Lives Matter movement and readers today. In the spirit of new historicism, the mechanisms of racism and how they affect the population, both the oppressors and the oppressed, is highlighted showing parallels between Lee’s fictional world and American society over time. Through the experiences of the characters, the structures of racism translate to a time and place where the Black Lives Matter movement has infused new life to the civil rights movement worldwide. Looking at retellings of the historical Scottsboro trials, which inspired the story unfolding in To Kill a Mockingbird in light of the justice system, Maycomb county and its inhabitants serves as guides into the racial norms that is ingrained in American society and politics. The results reveal a society where racial segregation is constantly reinforced by legal, economical, and social barriers, despite constitutional efforts to level the playing field for all American citizens.