Time to share some little known History of the 'theme park.' This information I learned from Disney Historian Jim Korkis...
Prepair to be shocked in disbelief....
Walt Disney Did not build the first theme park....
nor did he build the first theme park in America
The first American Theme Park was opened almost a decade ealier. Santa Clause Indiana was the home of Holiday World since 1946. This may have been a kiddie park, but the whole park carried a central theme around Santa Clause.
Don't Forget about Storytown USA in Lake George New York. A 5 acre park with the central theme of Mothergoose opened in 1954. In 1957, they opened a second land around the theme of a ghost town. Jungleland was added in the sixties.. In the late 70's, five years before Epcot center opened in Florida, Storytown added a multimillion dollar International Village.
Walt may not have invented these things, but he developed a company that made these things work.
For that manner, Steamboat Willy was not the first Sound Cartoon... it's was infact "Dinner Time," an Aesop's Fable. Why doesn't anyone remember this... because in Dinner time, sound was a gimmick, it did not improve the story, or add depth to the characters. Once again, Walt(and his company) took an idea, and made it work.