The Alamo: 13 Days to Glory (1987) is a made-for-TV film about the 1836 Battle of the Alamo written and directed by Burt Kennedy, starring James Arness as James Bowie, Brian Keith as Davy Crockett, Alec Baldwin as William Barrett Travis, Raul Julia as Antonio López de Santa Anna, and featuring a single scene cameo by Lorne Greene as Sam Houston.
 Unlike most other films about the Alamo — the most prominent other exception being the 1955 film "The Last Command" (which was released during the cultural frenzy created by Walt Disney's Davy Crockett television miniseries) — it focuses on Bowie as the main character rather than Crockett.
Davy Crockett is a 1910 American silent starring Hobart Bosworth as Davy Crockett, with Betty Harte and Tom Santschi.
 The film was directed by Francis Boggs and distributed by Selig Polyscope Co.
 It was commercially released in the United States.
 With a storyline similar to the 1909 "Davy Crockett – In Hearts United", this fictional account of Crockett's life has him rescuing his lady love from marrying his rival.
 The movie ends with Crockett and his girlfriend riding off together.
Davy Crockett Birthplace State Park is a state park in Greene County, Tennessee, United States.
 Situated along the Nolichucky River, the park consists of 105 acre centered on the traditional birthplace of legendary Tennessee frontiersman, soldier, and politician Davy Crockett (1786-1836).
 The park includes a replica of Crockett's birth cabin, a museum, and a large campground.
Davy Crockett, Indian Scout is a 1950 Western film starring George Montgomery as Davy Crockett's nephew.
Davy Crockett and the River Pirates is a 1956 live-action Walt Disney adventure film starring Fess Parker as Davy Crockett.
 It was shot in Cave-In-Rock, Illinois.
 This film acts as a prequel to 1955's "Davy Crockett, King of the Wild Frontier" and is an edited compilation of the fourth and fifth stories featuring the Disney television series "Davy Crockett":
Davy Crockett ( 1853 - September 30, 1876) was an American outlaw and a relative of the famed frontiersman Davy Crockett.
Davy Crockett Explorer Canoes is a free-floating canoe experience at several Disney theme parks.
 The oldest of the rides is located at the Disneyland park in Anaheim, California.
 Boarding from the park’s Critter Country section, up to twenty visitors paddle a canoe around the Rivers of America, accompanied by two guides.
 This is the only Disneyland attraction that is powered by park visitors.
Davy Crockett – In Hearts United is a 1909 American silent film starring Charles K. French as Davy Crockett, with Evelyn Graham, Charles Bauman, Charles W. Travis and Charles Inslee.
 The film was directed by Fred Balshofer and distributed by New York Motion Picture Co.
 It was commercially released on June 4, 1909 in the United States.
 This is believed to be the first movie ever made about Davy Crockett.
 The fictional romance depicted frontiersman Crockett rescuing a woman named Anna in mid-ceremony from marriage to a man she didn't love.
 She and Crockett rode off on his horse.
 They went directly to a minister who married them, and he brought her home to his mother.
Davy Crockett, King of the Wild Frontier is a 1955 live-action Walt Disney adventure film starring Fess Parker as Davy Crockett.
 This film is an edited compilation of the first three stories from the Disney television miniseries "Davy Crockett" :
Walt Disney Parks and Resorts, officially Walt Disney Parks and Resorts Worldwide, Inc. and informally known as Disney Parks, is one of The Walt Disney Company's four major business segments and a subsidiary.
 The company is responsible for the conception, building, and managing of its theme parks and vacation resorts, as well as a variety of family-oriented leisure enterprises.
 It was founded in 1971, following the opening of Magic Kingdom at Walt Disney World in Florida.

Question: When was the company that manages Davy Crockett Explorer Canoes formed?
Answer: 1971