Question: Baker's Chocolate is a brand name owned by the company formed by a merger in what year?

Context paragraphs:
Baker's Chocolate: Baker's Chocolate is a brand name for the line of baking chocolates owned by the Kraft Heinz Company (formerly Kraft Foods).  Products include a variety of bulk chocolates, including white and unsweetened, and sweetened coconut flakes.  It is one of the largest national brands of chocolate in the United States.  The company was originally named Walter Baker & Company.

SweetWorks: SweetWorks is a candy and chocolate manufacturer.  The company formed in 2002 by the merger of Oakleaf Confections of Toronto, Ontario, Canada; Niagara Chocolates of Buffalo, New York; and Whetstone Candy Company, based in St. Augustine, Florida.  Before the merger the company was known as Niagara Chocolates, "a leading fund-raising and speciality chocolate manufacturer."  Sixlets was acquired from Hershey in 2003.  SweetWorks purchased the Ovation chocolate brand from Hershey Foods in January 2003.

Socapex: Socapex is a brand of electrical connectors, known in the entertainment industry primarily for their 19-pin electrical connectors, commonly known as Socapex connectors, and used in film, television, and stage lighting to terminate the ends of a multicable.  They are wired with six hot/live pins, six neutral pins, six ground/earth pins, and a final central pin used to aid alignment of the male end of the connector with a female receptacle.  The Socapex was first created by a company called Socapex in 1961, which later on became Amphenol Socapex.  "Socapex" became a brand name owned by Amphenol Socapex, the term is now often applied to similar off-brand connectors as a genericized trademark.

Baseball card: A baseball card is a type of trading card relating to baseball, usually printed on cardboard, silk, or plastic.  These cards feature one or more baseball players, teams, stadiums, or celebrities.  Cards are most often found in the U.S. but are also common in countries such as Canada, Cuba, and Japan, where top-level leagues are present with a substantial fan base to support them.  Some companies that are notable for making these cards include Topps, Upper Deck Company, and Panini Group.  Previous manufacturers include Fleer (now a brand name owned by Upper Deck), Bowman (now a brand name owned by Topps), and Donruss (now a brand name owned by Panini).  Baseball cards have been declining in value since the 1980s after the production of mass-produced cards and counterfeit cards started, however, baseball cards are still one of the most influential collectibles of all time.

The Willy Wonka Candy Company: The Willy Wonka Candy Company is a British brand of confectionery owned and licensed by Swiss corporation Nestlé.  The Wonka brand's inception comes from materials licensed from British author Roald Dahl.  His classic children's novel, "Charlie and the Chocolate Factory", and its film adaptations are the source of both the packaging and the marketing styles of the Wonka brand.  The brand was launched in 1971, coinciding with the release of the novel's first film adaptation.  In 1988 the Willy Wonka Candy Company brand – then owned by Sunmark Corporation – was acquired by Nestlé.  Nestlé sells sweets and chocolate under the Willy Wonka brand name in the United States, Canada, the United Kingdom, the Republic of Ireland, Australia, New Zealand, Japan, South Africa, Mexico, Colombia, Brazil, Argentina, Costa Rica, Panama, Dominican Republic and the Middle East.  In mid-2015 the Willy Wonka brand name was dropped by Nestlé, in favour of special "throwback" packaging.  Candies previously made by the Willy Wonka brand are now under the Nestlé brand naming, excluding the Wonka brand name on the top left corner.

Walter Baker &amp; Company: The Baker Chocolate Company is the oldest producer of chocolate in the United States.  The company was established when a physician named Dr. James Baker met John Hannon on the banks of the Neponset River.  Irishman John Hannon was penniless but was a skilled chocolatier, a craft which he had learned in England and which was, until now, exclusive to Europe.  With the help of Baker, Hannon was able to set up a business where he produced “Hannon’s Best Chocolate” for 15 years.  In 1779, Hannon went on a trip to the West Indies and never returned.  His wife sold the company in 1780 to Dr. Baker who changed the name to Baker Chocolate Company.  The Baker's Chocolate brand now belongs to Mondelez International.

National brand: The brand name of a product that is distributed nationally under a brand name owned by the producer or distributor, as opposed to

Kraft Heinz: The Kraft Heinz Company is an American food company formed by the merger of Kraft Foods Group and Heinz in 2015.  The merger was backed by 3G Capital and Berkshire Hathaway, which invested US$10 billion in the deal, making Kraft Heinz worth about US$46 billion.  In 2015, the Kraft Heinz Company had 13 different brands with $500 million or more each in annual sales.

H2 (A&amp;E Networks): H2 is a brand name owned by A&E Networks (a joint venture between the Hearst Corporation, and the Disney–ABC Television Group division of The Walt Disney Company), used for a sister television channel of History.  The brand was debuted in September 2011 when History International in the United States was relaunched as H2.  The brand was expanded outside the U.S. since then.  H2 in the United States was relaunched on February 29, 2016 as Viceland, but the H2 brand is still used for sister channels to History in other markets.

Discovery Kids: Discovery Kids is a brand name owned by Discovery Communications.  Starting as a television segment within the Discovery channel, which aired shows such as Mystery Hunters, the brand was expanded as a separate television channel.  The brand was expanded into different areas since then.  Most of the channels worldwide were either rebranded as or replaced by another, but the brand still exists as the website for children's activities and as the consumer products aimed at children.

Supporting paragraphs: Baker's Chocolate Kraft Heinz
Answer: 2015