Actually, almost none of the attractons listed above were at WDW on opening day in 1971. These were the original Magic Kingdom attractions: The castle, Peter Pan's flight; 20,000 Leagues Under the Sea; Jungle Cruise; Swiss Family Treehouse; Sunshine Pavilion (Tropical Serenade); Cinderella’s Golden Carrousel; Dumbo, the Flying Elephant; Mad Tea Party; Mickey Mouse Revue; Mr. Toad’s Wild Ride; It’s a Small World; Snow White’s Adventures; Diamond Horseshoe Revue; Frontier Shooting Gallery; Country Bear Jamboree; Steamboat; Mike Fink Keel Boats; Hall of Presidents; Haunted Mansion; Main Street horseless carriage, Jitney, fire truck, horse-drawn streetcar and omnibus; Main Street Cinema; Walt Disney World Railroad; Skyway and Tomorrowland Indy Speedway
For the record, the following attractions were added:
1972: If You Had Wings
1973: Pirates of the Caribbean; Walt Disney Story; Swan Boats; Tom Sawyer Island
1974: StarJets; “Magic Carpet ‘Round the World” film
1975: Space Mountain; Carousel of Progress; WEDway PeopleMover; Davy Crockett’s Explorer Canoes
1980: Big Thunder Mountain Railroad
1992: Splash Mountain