[3] Adam Daniel Williams (maternal grandfather of Martin Luther King Jr.) became pastor in 1894, and the church had only 13 members.

[8] In 1999, a new 1,700-seat church building called the Horizon Sanctuary was inaugurated within the Martin Luther King Jr. National Historical Park.

[11] On January 30, 2020, Warnock announced his campaign for Kelly Loeffler's Senate seat during the 2020 special election.

In a special runoff election on January 5, 2021, Reverend Warnock defeated Loeffler receiving 51% of the popular vote.

On December 6, 2022, Warnock made further history by becoming the first Black senator from Georgia elected to a full six-year term.