In the mid-1920s, the Ku Klux Klan (KKK) reached its peak membership in the South and Midwest after a revival beginning around 1915. Its growth was due in part to tensions from rapid industrialization and social change in many growing cities; in the Midwest and West, its growth was related to the competition of waves of new immigrants from Southern and Eastern Europe. The KKK was strong in the Florida cities of Jacksonville and Tampa; Miami's chapter was influential enough to hold initiations at the Miami Country Club. The Klan also flourished in smaller towns of the South where racial violence had a long tradition dating back to the Reconstruction era. An editor of "The Gainesville Daily Sun" admitted that he was a member of the Klan in 1922, and praised the organization in print.