For 10 points, name this white supremacist organization.
The Leopard's Spots by Thomas Dixon is an entry in a trilogy of novels about this organization. Originally, it was created to oppose Loyal Leagues. This group's creed, or "Prescripts" were written by George Gordon. One of its leaders, William Joseph Simmons, was tricked by D.C. Stephenson and Hiram Wesley Evans into relinquishing control to them. The death of the factory worker Mary Phagan and the subsequent framing of Leo Frank helped spark the (*) revival of this organization. The DNC that had John W. Davis take the nomination saw this organization support William Gibbs McAdoo in a "bake." Its first leader massacred Union soldiers at Fort Pillow, and that man, Nathan Bedford Forrest, served as its first Grand Wizard. For 10 points, name this white supremacist organization.
The Leopard's Spots by Thomas Dixon is an entry in a trilogy of novels about this organization.
Ku Klux Klan