The Great American Revolution is a steel roller coaster located at Six Flags Magic Mountain in Valencia, California, United States. Manufactured by Anton Schwarzkopf and designed by Werner Stengel, the roller coaster opened to the public on May 8, 1976. The New Revolution is the world's first modern roller coaster to feature a vertical loop and has been recognized for that accomplishment by American Coaster Enthusiasts (ACE), who awarded the roller coaster its Coaster Landmark status. However, there were earlier examples of roller coasters with a full vertical loop, the earliest being the Centrifugal Railways of the mid- to late-1800s.