paragraph_text: As of 2015, founder John Mackey and Walter Robb were co-CEOs of the publicly traded company, with John Elstrott as chairman. In November 2016, the company announced that Walter Robb would be stepping down as co-CEO at the end of year and would remain with the company as a director. It became a Fortune 500 company in March 2005 and is the 30th largest retailer in the U.S., based on 2014 revenue.

paragraph_text: iPod Hi-Fi is a speaker system that was developed and manufactured by Apple Inc. and was released on February 28, 2006, for use with any iPod digital music player. The iPod Hi-Fi retailed at the Apple Store for US$349 until its discontinuation on September 5, 2007.

paragraph_text: The Wilshire 5000 Total Market Index, or more simply the Wilshire 5000, is a market - capitalization - weighted index of the market value of all stocks actively traded in the United States. As of December 31, 2017, the index contained only 3,492 components. The index is intended to measure the performance of most publicly traded companies headquartered in the United States, with readily available price data, (Bulletin Board / penny stocks and stocks of extremely small companies are excluded). Hence, the index includes a majority of the common stocks and REITs traded primarily through New York Stock Exchange, NASDAQ, or the American Stock Exchange. Limited partnerships and ADRs are not included. It can be tracked by following the ticker ^ W5000.

paragraph_text: Many accessories have been made for the iPod line. A large number are made by third party companies, although many, such as the iPod Hi-Fi, are made by Apple. Some accessories add extra features that other music players have, such as sound recorders, FM radio tuners, wired remote controls, and audio/visual cables for TV connections. Other accessories offer unique features like the Nike+iPod pedometer and the iPod Camera Connector. Other notable accessories include external speakers, wireless remote controls, protective case, screen films, and wireless earphones. Among the first accessory manufacturers were Griffin Technology, Belkin, JBL, Bose, Monster Cable, and SendStation.

paragraph_text: The dock connector also allowed the iPod to connect to accessories, which often supplement the iPod's music, video, and photo playback. Apple sells a few accessories, such as the now-discontinued iPod Hi-Fi, but most are manufactured by third parties such as Belkin and Griffin. Some peripherals use their own interface, while others use the iPod's own screen. Because the dock connector is a proprietary interface, the implementation of the interface requires paying royalties to Apple.

paragraph_text: Aspinal of London is a London designer, manufacturer and retailer of luxury leather goods and accessories for men and women.

paragraph_text: The Gaggia company was founded in 1947 and formally incorporated in 1948. It first produced machines for commercial use, but shortly thereafter released the Gilda, its first home machine. The company continues to produce espresso machines (as well as accessories) from classic manual machines to the innovative semi-automatic and super-automatic models recently added to the line. As of 2010, all Gaggia espresso and coffee machines are still manufactured in Milan at the Robecco sul Naviglio factory. The 2015 Gaggia Classic was built in Romania instead. The New Gaggia Classic is made in Italy again and uses an alumin boiler.

paragraph_text: In 1976, the company hired John Brown and Partners, based in Seattle, as its first advertising agency. The following year, the agency created the first ``brand ad ''for Nike, called`` There is no finish line'', in which no Nike product was shown. By 1980, Nike had attained a 50% market share in the U.S. athletic shoe market, and the company went public in December of that year.

paragraph_text: On August 24, 2006, Apple and Creative announced a broad settlement to end their legal disputes. Apple will pay Creative US$100 million for a paid-up license, to use Creative's awarded patent in all Apple products. As part of the agreement, Apple will recoup part of its payment, if Creative is successful in licensing the patent. Creative then announced its intention to produce iPod accessories by joining the Made for iPod program.

paragraph_text: A Carleton University grad, Linton took over as Chairman and CEO while Marc Wayne became the President. The company was the first federally regulated, publicly traded cannabis producer in North America, traded on the Toronto Stock Exchange as WEED. It began trading as CGC on the New York Stock Exchange on May 24, 2018, as the first cannabis producer on the NYSE. Until October 17, 2018 -- marijuana is legal in Canada only for medical purposes; until that time, growers are licensed by Health Canada under the Access to Cannabis for Medical Purposes Regulations (ACMPR). The company was described as ``one of the world's -- and Canada's first -- premier exporters of marijuana ''by the Financial Post news organization in December 2016.

paragraph_text: Steel Heddle Manufacturing Company Complex is a historic factory complex located in the Allegheny West neighborhood of Philadelphia, Pennsylvania. The complex consists of four buildings: the Plant (1919, 1925-1927), Main Office (c. 1919-1922), Chrome Plating Building (1951), and Lumber Storage and Garage (1930). The Plan is a five-story, "U"-shaped, reinforced concrete building on a raised basement. The Steel Heddle Manufacturing Company manufactured heddles and other textile loom accessories. The Philadelphia plant remained in operation until 1983.

paragraph_text: Bega Cheese is an Australian dairy company based in the town of Bega, New South Wales. Founded as an agricultural cooperative owned by their dairy suppliers, it became a public company in 2011 when it listed on the Australian Securities Exchange. Despite this, close to half of shares publicly traded are still held by Bega's farmer - suppliers. It is currently one of the largest dairy companies in Australia, with a valuation of around A $775 million (as of January 2017)

paragraph_text: Hedgebrook is an American publicly traded company listed on the OTC Bulletin Board and headquartered in Ashland, Oregon that focuses on mergers and acquisitions in various industries, including aerospace, consumer, energy and health care. The company was founded in 2004 and is chaired by Brady Brim-DeForest.

paragraph_text: MathStar was an American, fabless semiconductor company based in Oregon. Founded in Minnesota in 1999, the company moved to the Portland metropolitan area where it remained until it completed a reverse merger with Sajan, Inc. in 2010. MathStar never made a profit after raising $137 million over the lifetime of the company, including via several stock offerings while the company was publicly traded on the NASDAQ market. The company's only product was a field programmable object array (FPOA) chip.

paragraph_text: On October 21, 2008, Apple reported that only 14.21% of total revenue for fiscal quarter 4 of year 2008 came from iPods. At the September 9, 2009 keynote presentation at the Apple Event, Phil Schiller announced total cumulative sales of iPods exceeded 220 million. The continual decline of iPod sales since 2009 has not been a surprising trend for the Apple corporation, as Apple CFO Peter Oppenheimer explained in June 2009: "We expect our traditional MP3 players to decline over time as we cannibalize ourselves with the iPod Touch and the iPhone." Since 2009, the company's iPod sales have continually decreased every financial quarter and in 2013 a new model was not introduced onto the market.

paragraph_text: The Dow Jones Industrial Average (DJIA), or simply the Dow (/ ˈdaʊ /), is a stock market index that shows how 30 large, publicly owned companies based in the United States have traded during a standard trading session in the stock market. The value of the Dow is not a weighted arithmetic mean and does not represent its component companies' market capitalization, but rather the sum of the price of one share of stock for each component company. The sum is corrected by a factor which changes whenever one of the component stocks has a stock split or stock dividend, so as to generate a consistent value for the index.

paragraph_text: The sixth - generation iPod Touch (stylized and marketed as the iPod touch, and colloquially known as the iPod touch 6G, iPod touch 6, or iPod touch (2015)) is a multipurpose pocket computer designed and marketed by Apple Inc. with a touchscreen - based user interface. It is the successor to the iPod Touch (5th generation), becoming the first major update to the iPod lineup in more than two and a half years. It was released on the online Apple Store on July 15, 2015, along with a new iPod Nano and iPod Shuffle, which received minor upgrades.

paragraph_text: Maschinenfabrik Berthold Hermle AG is a publicly traded German company with headquarters in Gosheim, Baden-Württemberg, Germany. It is one of the leading manufacturers of milling machines. There are over 20,000 Hermle-manufactured machines in use worldwide. The chief users are suppliers of medical technology, the optical industry, aviation, and the automotive industry and racing.

paragraph_text: In 1998 Alberta Wheat Pool and Manitoba Pool Elevators merged to form Agricore Cooperative Limited. In 2001, United Grain Growers combined its business operations with Agricore Cooperative Ltd. and carried on business as Agricore United, a publicly traded company, no longer a farmer-owned cooperative. In 2007, Agricore United was taken over by the Saskatchewan Wheat Pool, another publicly traded company. The merged corporation was renamed Viterra.

paragraph_text: The paper is owned by The New York Times Company, which is publicly traded but primarily controlled by the Ochs - Sulzberger family through a dual - class share structure. It has been owned by the family since 1896; A.G. Sulzberger the paper's publisher and, his father, Arthur Ochs Sulzberger Jr. the company's chairman, is the fourth and fifth generation of the family to helm the paper.

Question: When did the manufacturer of a pedometer accessory for the iPod become a publicly traded company?
Answer: 1980