Honda Enoch wrote:ALL of them are original attractions.
Wrong. Below is your list with either a "True" for Opening Day attractions or a "False" followed by the date it opened for non-Opening Day attractions.
When I say original attractions I mean the ones that opened on Opening Day, October 1, 1971, or just a few days (2 or 3) later. Most Disney attractions are original in that they were designed by or for Disney exclusively so that isn't a good measure in this case.
MAIN STREET
Main Street Cinema - True
Penny Arcade - True
Swan Boats - False, opened May 20, 1974
The Walt Disney Story - False, opened April, 1973
ADVENTURELAND
Tropical Serenade - True
Pirates and the Caribbean (another movie tie in) - False, opened December 15, 1973
FRONTIERLAND
Admiral Joe Fowler Riverboat - True
Davy Crockett's Explorer Canoes - True
Diamond Horseshoe Revue Show Formats - True
Mike Fink Keel Boats - True
LIBERTY SQUARE
The Haunted Mansion - True
FANTASYLAND
20,000 Leagues Under the Sea - False, October 14, 1971
Dumbo, The Flying Elephant: Original Ride - True
Legend of the Lion King - False, opened in 1994
Magic Journeys - False, opened in the MK on December 15, 1987
Mickey Mouse Revue - True
Mr. Toad's Wild Ride - True
Skyway to Tomorrowland - True
Snow White's Scary Adventures: Original Ride - True
TOMORROWLAND
Carousel of Progress: The Best Time of Your Life - False, opened January 15, 1975
Circle-Vision 360 Films (America the Beautiful, Magic Carpet 'Round the World, American Journeys) - False, America the Beautiful opened on October 15, 1971
Flight to the Moon/Mission to Mars - False, opened December 24, 1971
Grand Prix Raceway / Tomorrowland Speedway - True
If You Had Wings/If You Could Fly - False - opened June 5, 1972
Skyway to Fantasyland - True
Star Jets - False, opened 1974
Timekeeper - False, opened November 21, 1994
WEDway PeopleMover - False, opened July 1, 1975