John Grisham grounds The Chamber in the historical reality of 1960s Mississippi, a central battleground of the civil rights movement where extremist racist groups like the Ku Klux Klan (KKK) waged a violent campaign of terror. The KKK was originally founded in 1865 as a fraternal social club for former Confederate Army officers who continued to oppose the abolition of slavery in the aftermath of the American Civil War. They espoused white supremacy and racial segregation as core elements of their ideology, which they enacted through acts of racist violence. Though the US government attempted to counteract the KKK, two revival waves ensured the continued activity of the organization into the present day, though the current number of active KKK members, associates, and supporters is said to be in decline because of negative perception around the group’s history and image.

The novel’s central crime, the bombing of a Jewish lawyer’s office, mirrors the real-life strategy of the White Knights of the KKK, a notoriously violent offshoot of the original group that targeted Black churches, activists, and Jewish community leaders perceived as supporting civil rights. For example, Jackson’s Beth Israel Congregation was bombed in September 1967, the same year as the novel’s fictional bombing. In this era, Klansmen often faced little legal consequences due to a justice system dominated by all-white juries and segregationist officials. The first two trials of Byron De La Beckwith for the 1963 murder of Medgar Evers both ended in hung all-white juries, a pattern of impunity reflected in Sam Cayhall’s first two trials, where all-white juries bring the case to deadlock.

The novel charts the profound shift in sociocultural values that followed the civil rights movement. The Voting Rights Act of 1965 dramatically increased Black voter registration, leading to integrated juries and the election of new, more moderate officials. This changing social and political landscape directly enables Sam’s eventual conviction in 1981 by an integrated jury, demonstrating how the fight for civil rights slowly reshaped the administration of justice in the American South.