Orlando in the 1990’s was bookended by stiff competition between Disney and its rival Universal Studios. When Michael Eisner got wind that Disneyland’s cross-town rival Universal Studios was preparing to open in Orlando as well, he rushed the mouse’s plans for its own studio theme park into production, even opening a whole year ahead of Universal. Universal returned the favor by firing back with Islands of Adventure, which contained rethemed versions of the Beastly Kingdom attractions Disney had cut from its Animal Kingdom project just a year earlier. Universal even hired a lot of the Imagineers Disney had just laid off to help make IOA a quality theme park.
And then things calmed down for nearly a decade. Disney kept churning out new attractions (Expedition Everest, Toy Story Midway Mania to name two) while Universal Studios was the forgotten step-child in a larger corporation that was dealing with ownership and financial problems. Eventually that got all sorted out and two things happened that turned around the fortunes at Universal Orlando Resort.
First, Universal got the theme park rights to use the Kuka robotic arm roller coaster that everyone was excited about at IAAPA in 2004. Second, it was able to convince Harry Potter scribe J.K. Rowling that they would be better caretakers for her story than Disney. The Kuka robocoaster win had something to do with that, but Universal was also willing to give Rowling final approval on nearly every detail. Disney would not.