Question: How long ago did georgia open six flags theme park?
About the article "Six Flags", section "Growth and acquisitions".

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Six Flags New England (SFNE), formerly Riverside Amusement Park, is a Six Flags theme park, named for the New England region, in which it is located.
Located off of Massachusetts State Route 159, Six Flags New England is located less than from the major City of Springfield, Massachusetts, in the nearby town of Agawam, Massachusetts.
Six Flags New England is less than a mile from the Connecticut border, making it very popular with Connecticut residents as well as Massachusetts residents.
Like most Six Flags parks, Six Flags New England consists of a theme park and a water park.
Although it did not originally open as such, it is the oldest of the Six Flags parks. 
Hurricane Harbor will be a water park located within Six Flags Over Georgia.
The water park will open in 2014. 
 Design, construction and trains  "Outlaw Run" at Silver Dollar City - wooden roller coaster  "Goliath" at Six Flags Great America - wooden roller coaster I-Box retrack  "Iron Rattler" at Six Flags Fiesta Texas  "Texas Giant" at Six Flags Over Texas  "Medusa Steel Coaster" at Six Flags México Topper Track  "Cyclone" at Six Flags New England  "Georgia Cyclone" at Six Flags Over Georgia   "Medusa" at Six Flags México  "The Rattler" at Six Flags Fiesta Texas  "Tremors" at Silverwood Theme Park  "Le Monstre" at La Ronde Construction  "Aftershock" at Silverwood Theme Park  "El Toro" at Six Flags Great Adventure  "T Express" at Everland  "Timber Terror" at Silverwood Theme Park  "Tremors" at Silverwood Theme Park  "Villain" at Six Flags Worlds of Adventure  "Timberhawk" at Wild Waves Theme Park Repairs  "The Boss at Six Flags St. Louis  "Cornball Express" at Indiana Beach  "Hoosier Hurricane" at Indiana Beach  "" at Myrtle Beach Pavilion  "Mega Zeph" at Six Flags New Orleans  "Predator" at Darien Lake  "Psyclone" at Six Flags Magic Mountain  "Thunder Run" at Kentucky Kingdom  "Timber Terror" at Silverwood Theme Park  "Tremors" at Silverwood Theme Park  "Twister II" at Elitch Gardens Theme Park  
The first regional theme park, as well as the first Six Flags park, Six Flags over Texas was officially opened in 1961 in Arlington, Texas near Dallas.
The first Six Flags theme park was the vision of Angus Wynne, Jr. and helped create the modern, competitive theme park industry.
By 1968, the second Six Flags park, Six Flags Over Georgia, opened, and in 1971, Six Flags Over Mid-America (now Six Flags St. Louis) opened near St. Louis, Missouri.
Also in 1971 was the opening of the Walt Disney World resort complex in Florida, with the Magic Kingdom (1971), Epcot (1982), Disney's Hollywood Studios (1989) and Disney's Animal Kingdom (1998). 
Six Flags St. Louis, originally known as Six Flags Over Mid-America, is an amusement park located in Eureka, Missouri, a suburb of St. Louis.
The park opened in 1971 as the third theme park of the Six Flags chain and was the last park built under the Six Flags name.
Unlike its sister parks, Six Flags Over Texas and Six Flags Over Georgia, which are owned by limited partnerships and managed by Six Flags, the St. Louis park is completely owned and operated.