was built into a pavilion modeled after its original home. For the 1973 season, Six Flags added its second park expansion, the Cotton States Exposition, a development four years in the making. In 1969, general manager Earl McKoy first proposed that the park install a wooden roller coaster, an idea to which Angus Wynne wasn't very receptive. By 1971, however, the concept was approved, and designer John C. Allen and the Philadelphia Toboggan Company were contracted to design the ride, which opened in 1973 as The Great American Scream Machine. The Scream Machine, the largest roller coaster in the world at the time, was the anchor attraction for the Cotton States area, which was inspired by the 1895 Cotton States and International Exposition. In 1974, Six Flags added two new rides, the Mo-Mo the Monster Octopus ride in the USA section and the Phlying Phlurpus spinning ride in Cotton States; Mo-Mo would later move to Cotton States, as well. The Spanish section received a number of children's rides for the 1975 season. After the end of that season, the Happy Motoring Freeway was removed to make way for the Great Gasp parachute drop, which would be the park's new attraction for 1976. 1977: Added Wheelie (Schwarzkopf Enterprise) 1978: Added Mind Bender. 1979: Added Highland Swings (Chance Yo-Yo) Present day In late 2010, Six Flags began the process of removing licensed themeing from attractions. They terminated several licenses including their license with Thomas the Tank Engine. Thomas Town will be renamed and rethemed to Whistlestop Park in time for the 2011 season. In an arrangement similar to that for Six Flags Over Texas, it is owned by a group of approximately 120 limited partners—some the heirs of Angus G. Wynne—and is managed by the corporation. In years past, this has caused significant friction, including legal action. Starting in 1991, the park was managed by Time Warner Entertainment. The partners sued Time Warner in 1997, claiming that they had neglected to invest in the park and overcharged the partners for the improvements it did receive. A Gwinnett County civil court jury agreed and awarded the partners damages in excess of US$600 million. In 1998, Time Warner sold its interests in the Six Flags parks to Premier Parks of Oklahoma City, which later changed its name to Six Flags Theme Parks, Inc. On August 29, 2013, Six Flags officially announced it would add