Question: What English ale from a British brewery bought by Green King in 2000 was first brewed to commemorate the 50th anniversary of the MG car factory on 30th November 1979?

Context articles: MG Cars
Tulip Festival (Albany, New York)
Stampede Wrestling 50th Anniversary Show
Morland Brewery
Canadian ice hockey stamps
Milestone (song)
MG Car Club
Old Speckled Hen
Fifty Big Ones
Exmoor Ales

MG, the initials of Morris Garages, is an English automotive marque registered by the now defunct MG Car Company Limited, a British sports car manufacturer begun in the 1920s as a sales promotion sideline within W R Morris's Oxford city retail sales and service business by the business's manager, Cecil Kimber.
 Best known for its two-seat open sports cars, MG also produced saloons and coupés. Kimber was an employee of William Morris.
The Tulip Festival is held in Albany, New York every spring at Washington Park.
 It stems from when Mayor Erastus Corning 2nd got a city ordinance passed declaring the tulip as Albany's official flower on July 1, 1948.
 In addition, he sent a request to Queen Wilhelmina of the Netherlands to name a variety as Albany's tulip.
 On July 11, 1948 her reply was "Her Majesty gladly accepts the invitation to designate a tulip as the official flower of Albany."
 She picked the variety "Orange Wonder", an 18-inch tall tulip that is orange-shaded with a scarlet toward the center, it is a slow-grower and relatively rare.
 The first Tulip Fest was celebrated the next year on May 14, 1949 with opening ceremonies still carried on today as tradition, such as the sweeping of State Street and the crowning of a Tulip Queen.
 In 1997 to commemorate the 50th anniversary of the festival the state of New York designated Albany as the "I Love New York Spring Destination".
 Also for the 50th anniversary a descendant variety of the "Wonder Orange" tulip was found in the Netherlands, and the new variety was named "City of Albany".
 The African-American tradition of Pinksterfest, whose origins are traced back even further to Dutch festivities, was later incorporated into the Tulip Fest.
 Since 1998 the Tulip Fest has included the Mother of the Year award.
The Stampede Wrestling 50th Anniversary Show (also called Stu Hart's 88th Birthday Celebration) was a professional wrestling supercard produced by the Stampede Wrestling promotion that took place on May 2, 2003, at the Ogden Legion Hall in Calgary, Alberta.
 It was initially to be held at the Victoria Pavilion, however, the event was later moved to another venue.
 The show was held to celebrate Stu Hart's 88th birthday as well as the 50th anniversary of Stampede Wrestling.
 Ralph Klein, then Premier of Alberta, made a guest appearance at the event to honor the Hart wrestling family.
 It was second reunion show to be held since the Stu Hart 50th Anniversary Show in 1995.
 The event featured talent from both the original Stampede Wrestling and Ross and Bruce Hart's version.
 Seven professional wrestling matches were featured on the card.
Morland was a British brewery which was bought by Greene King in 2000.
 Morland's beers include Hen's Tooth, Old Speckled Hen, Tanner's Jack and Morland's Original.
Ice hockey has been a key element of Canada's cultural and social history.
 This has been captured on various releases from Canada Post.
 In 1956 Canada Post Office released a 5¢ stamp paying tribute to Canadian hockey players for "the prestige they have earned for Canada in international competition."
 Releases of the late 20th Century included the commemoration of the XV Olympic Winter Games held in Calgary, a three stamp set honouring the 75th Anniversary of the National Hockey League, the 100th Anniversary of the Stanley Cup, and the 25th Anniversary of the 1972 Summit Series.
 In the 2000s, the key release has been the series of National Hockey League All-Stars.
 The series lasted from 2000 to 2005.
 Other hockey issues have included a commemorative envelope to commemorate the 25th Anniversary of the International Postal Hockey Tournament and a stamp to commemorate the 2002 Winter Olympics in Salt Lake City, Utah featured a hockey player.
Milestone is BoA's first DVD single (31st overall) which was released on December 7, 2011 to commemorate her 10th Anniversary in Japan.
 The song is written and composed by STY who was requested by Avex to write a song for BoA's 10th Anniversary.
 The song was first performed at Audio Technica's 50th Anniversary Live Party, and later a 7 seconds snippet of the song live performance at J-Wave Live: Autumn was leaked.
The MG Car Club is an international club founded in 1930 for owners and enthusiasts of MG cars.
 The club headquarters is in Abingdon, Oxfordshire and is located adjacent to the now defunct MG factory site where cars were produced between 1930 - 1980.
 The MG Car Club currently has 55,000 affiliated members Worldwide and in 2015 the organisation celebrated its 85th anniversary.
Old Speckled Hen is an English ale from the Morland Brewery, now owned by Greene King Brewery.
 Old Speckled Hen was first brewed in 1979 in Abingdon, Oxfordshire, to commemorate the 50th anniversary of the MG car factory there on the 30th November 1979.
 Since 2000, when Greene King bought Morland and closed down the Abingdon brewery, it has been made in Greene King's Bury St Edmunds brewery.
 It is available in more than twenty different countries in bottles, cans and on tap from cask and keg.
 The brand has been expanded to include Old Crafty Hen, a 6.5% abv ale, and Old Golden Hen, a golden coloured 4.1% beer.
Fifty Big Ones, also referred to as 50 Big Ones, is a two-disc compilation album released by Capitol Records consisting of material from the American rock and roll band The Beach Boys.
 The album was released in 2012 to commemorate the band's 50th anniversary, and features some remastered mixes and stereo debuts.
 The track listing is similar to the setlist the band played on the 50th anniversary tour.
Exmoor Ales is a microbrewery based in Wiveliscombe, Somerset, England.
 The brewery was previously called Golden Hill Brewery.
 Exmoor Ales was founded in 1980 in the former Hancock's Brewery in Wiveliscombe.
 They produce 13,000 barrels annually.
 Of the beers they make, 85% are cask ales.
 Their Exmoor Gold beer was first brewed in 1986 to celebrate 1,000 beer being brewed.
 Exmoor Gold was the first golden ale in Britain.
 In 2015, it was named Best Britain Golden Ale in Southwest England by CAMRA.