The late 1960s were a time of free love, Vietnam War protests and underground comix books. The spelling of 'comix' instead of 'comics' helped differentiate them from the mainstream comic books available. The 'x' also warned the reader that contents was sometimes adult-oriented. One of the more popular series was "The Adventures of the Fabulous Furry Freak Brothers." Created by Gilbert Shelton, it featured three brothers: Phinneas, Freewheelin' Franklin and Fat Freddie, the '60s equivalent of the Three Stooges. The brothers were usually found in some form of wacky hijinx, chasing girls or running from the 'fuzz.' Fat Freddy had a cat, known as 'Fat Freddy's Cat,' who became a regularly featured character in the series.