Disneland is the original park. It was built in 1955. Disney world in 1971. California adventure in 2001
Orlando, florida is Disney world! It has four parks to it. Magic kingdom, Epcot, animal kingdom, and Hollywood studios.
Disney World is in Orlando Florida. If you mean the main Disney park in Anaheim, is just Disneyland. The other park would be California Adventure.
I concur with all the information above.
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