Question: When did Disney's Contemporary Resort and Disney's Polynesian Village Resort open?

Context articles: Disney's Polynesian Village Resort
Dunes Village Resort
Walt Disney World Dolphin
Magic Kingdom Resort Area
Disney's All-Star Movies Resort
Disney's All-Star Music Resort
Disney's Contemporary Resort
Bay Lake Tower
Burke Mountain Ski Area
Harbor Village Resort

Disney's Polynesian Village Resort (formerly the Polynesian Resort from 1985 to 2014) is a Disney owned and operated AAA Four-Diamond Award–winning resort located at the Walt Disney World Resort.
 It began operation on October 1, 1971 as one of Walt Disney World Resort's first two on-site hotels.
 The resort has a South Seas theme, and originally opened with 492 rooms.
 It was designed by Welton Becket and Associates and constructed by US Steel Realty Development.
 The resort is owned and operated by Walt Disney Parks and Resorts.
Dunes Village Resort is a resort in Myrtle Beach, South Carolina.
 It is located in a residential area on the Golden Mile of the Grand Strand.
 The resort consists of two towers (Palmetto and Palms Towers) with a number of room types.
 The resort was opened in 2006 by George Buchanan.
 The resort was rated the #2 Family Resort in the United States by TripAdvisor.
The Walt Disney World Dolphin is a resort hotel designed by architect Michael Graves located between Epcot and Disney's Hollywood Studios in the Walt Disney World Resort in Bay Lake, Florida, next to Disney's BoardWalk Resort area.
 It opened on June 1, 1990 and is joined to its sister hotel, the Walt Disney World Swan (also designed by Graves) by a palm-tree lined covered walkway crossing a lagoon.
 The Walt Disney World Swan and Dolphin is a joint venture between the Walt Disney Company, Tishman Hotel Corporation, MetLife and Starwood Hotels and Resorts.
 The land the resort occupies is owned by the Walt Disney Company, while the buildings themselves are leased by Disney to the Tishman Hotel Corporation and MetLife but operated by Starwood Hotels & Resorts Worldwide under the Sheraton Hotels brand.
 The Walt Disney World Swan and Dolphin are a part of the Walt Disney Collection of resorts; because of this they are Disney branded and guests of the resort have access to special Disney benefits available to Disney Resort Hotel guests only.
The Magic Kingdom Resort Area includes five resorts located along the shores of the Seven Seas Lagoon and Bay Lake, near the Magic Kingdom at the Walt Disney World Resort.
 The area began with the opening of Disney's Contemporary Resort, Disney's Polynesian Resort and Disney's Fort Wilderness Resort & Campground.
 The Walt Disney World Monorail System connects Disney's Contemporary Resort, Disney's Polynesian Village Resort and Disney's Grand Floridian Resort & Spa to the Transportation and Ticket Center and the Magic Kingdom.
Disney's All-Star Movies Resort is a resort hotel located at the Walt Disney World Resort.
 It is one of five Disney Resorts in the "Value" category along with Disney's All-Star Sports Resort, Disney's All-Star Music Resort, Disney's Pop Century Resort, and Disney's Art of Animation Resort.
 The resort is located on the southern portion of the Walt Disney World property, and has a Disney Movie theme.
 Like all Disney Value resorts, the property is decorated with giant Disney film icons such as the Fantasia Pool; a "Mighty Ducks"-themed Duck Pond Pool; Herbie, The Love Bug; puppies from "One Hundred and One Dalmatians"; and some of the residents of Andy's Room from Pixar's "Toy Story".
 Like the other value resorts, the All-Star Movies has a large food court and poolside bar.
Disney's All-Star Music Resort is a resort that is part of the Walt Disney World Resort.
 It is one of five resorts in the Value Resort category, along with Disney's All-Star Sports Resort, Disney's All-Star Movies Resort, Disney's Pop Century Resort, and Disney's Art of Animation Resort.
 The resort is located on the southern portion of the Walt Disney World Resort property near Disney's Animal Kingdom.
 Disney's All-Star Music Resort is a 1,604-room hotel featuring giant icons that pay homage to classic music genres—including Broadway show tunes, calypso, country, jazz, and rock n' roll.
 Disney's All-Star Music Resort was the first Disney Value Resort with family suites.
 As a characteristic with all Disney Value resorts, the resort features a music theme with giant novelty items such as guitars, trumpets, and drums.
 The resort is designated in the Florida Green Lodging Program.
Disney's Contemporary Resort, originally to be named Tempo Bay Hotel and previously the Contemporary Resort Hotel, is a AAA Four-Diamond Award–winning resort located at the Walt Disney World Resort in Bay Lake, Florida.
 Opened on October 1, 1971, the hotel is one of two original properties located at the complex alongside Disney's Polynesian Village Resort, and is currently listed as a deluxe-priced resort.
 It is adjacent to the Magic Kingdom theme park, and is identified by its A-frame main building.
Bay Lake Tower at Disney's Contemporary Resort, commonly known as Bay Lake Tower, is a Disney Vacation Club resort located at the Walt Disney World Resort, opened in 2009.
 It is located in the Magic Kingdom Resort Area, adjacent to Disney's Contemporary Resort, Bay Lake, and Magic Kingdom.
Burke Mountain Ski resort is a mid-size ski resort open to skiing and snowboarding in northeast Vermont (aka Vermont's "Northeast Kingdom" ).
 It is located on Burke Mountain, and is home to Burke Mountain Academy, a ski academy.
The Harbor Village Resort was a proposed complex of three skyscrapers intended for San Francisco's India Basin in the Bayview-Hunters Point district.
 To be located on Hudson Street, the mixed-use complex would have consisted of a 250-boat marina and three 61 story skyscrapers towering 650 ft over the marina.
 The three towers, to be named Harbor Village Resort I, II & III, would be spaced 300 ft apart.
 The entire complex was envisioned to contain 1,600 three or four bedroom residences.
 If built, the three 650 foot (198 m) skyscrapers would tower significantly taller than any current structure in the neighborhood.