Question: How long did the city WMID serves hold a monopoly on casino gambling?

full_context: Document 1: WMID: WMID is a radio station in Atlantic City, New Jersey which plays "the classic oldies". Its parent company is Equity Communications (the station was at one time owned by entertainer Merv Griffin). WMID also carries the Philadelphia Phillies. Its studios are located on East Black Horse Pike in the West Atlantic City section of Egg Harbor Township, and its transmitter is located on Murray Avenue in Atlantic City.
Document 2: Atlantic City, New Jersey: With the redevelopment of Las Vegas and the opening of two casinos in Connecticut in the early 1990s, along with newly built casinos in the nearby Philadelphia metro area in the 2000s, Atlantic City's tourism began to decline due to its failure to diversify away from gaming. Determined to expand, in 1999 the Atlantic City Redevelopment Authority partnered with Las Vegas casino mogul Steve Wynn to develop a new roadway to a barren section of the city near the Marina. Nicknamed "The Tunnel Project", Steve Wynn planned the proposed 'Mirage Atlantic City' around the idea that he would connect the $330 million tunnel stretching 2.5 miles (4.0 km) from the Atlantic City Expressway to his new resort. The roadway was later officially named the Atlantic City-Brigantine Connector, and funnels incoming traffic off of the expressway into the city's marina district and Brigantine, New Jersey.
Document 3: Atlantic City, New Jersey: In the wake of the United States' economic downturn and the legalization of gambling in adjacent and nearby states (including Delaware, Maryland, New York, and Pennsylvania), four casino closures took place in 2014: the Atlantic Club on January 13; the Showboat on August 31; the Revel, which was Atlantic City's second-newest casino, on September 2; and Trump Plaza, which originally opened in 1984, and was the poorest performing casino in the city, on September 16.
Document 4: WAJM: WAJM, assigned to 88.9 FM and licensed to Atlantic City, New Jersey, is a high school radio station owned by the Atlantic City Board of Education and is operated by the students of Atlantic City High School. Currently, WAJM broadcasts live Monday thru Friday from 7:00am to 3:30pm and during after hours, on weekends, holidays and when Atlantic City High School is closed due to inclement weather the station operates on an automated system where music, station IDs and PSA are shuffled and broadcast on-air. Starting at its inception WAJM had been broadcasting with a jazz radio format until 2009 when it flipped to a freeform radio format using the moniker 88.9 The Jam. The studios, offices and transmitter are located on the campus of Atlantic City High School on North Albany Avenue in Atlantic City. In 2009 WAJM began simulcasting its live and automated broadcasts via the Internet in both an audio only feed and audio/video feed. The station was a creation of Mr.Norman Draper. The first school year of on air broadcasting was 1996-97. That year the students interviewed "Sugar" Ray Leonard, and did a live simulcast from the grand opening of the new Atlantic City Convention Center.
Document 5: Atlantic City, New Jersey: Caesars Entertainment executives have been reconsidering the future of their three remaining Atlantic City properties (Bally's, Caesars and Harrah's), in the wake of a Chapter 11 bankruptcy filing by the company's casino operating unit in January 2015.
Document 6: WPGG: WPGG (1450 AM; "WPG Talk Radio 95.5") is an American radio station licensed to serve the community of Atlantic City, New Jersey. The station is owned by Townsquare Media and the broadcast license is held by Townsquare Media Atlantic City License, LLC. Operating with non-directional 1,000 watts day and night, the station can be heard throughout New Jersey's Ocean, Atlantic, and Cape May Counties and into southern Delaware, coastal Maryland, coastal North Carolina, the southern side of much of Long Island, NY, and southern parts of Cape Cod, MA. Since October 22, 2012, the station broadcasts a talk radio format under the branding "WPG Talk Radio 1450." In May 2016, reflecting the frequency of its FM translator, 104.1 W281BH, the station rebranded as "WPG Talk Radio 104.1." In May 2019, the station moved to a new translator, 95.5 W238CZ with another rebranding as "WPG Talk Radio 95.5" (104.1 became the new home of Classic Rock "Rock 104.1", relaying the signal of WENJ 97.3-HD4). WPGG's transmitter is located in Atlantic City, while its studios are in, and translator transmits from, Northfield, New Jersey.
Document 7: WAYV: WAYV (95.1 FM) is a commercial radio station located in Atlantic City, New Jersey. It airs a contemporary hit radio format. It has been among the top rated and billing stations in the Atlantic City market since 1980. Its studios are located at the Bayport One complex in West Atlantic City, and its transmitter is located north of Atlantic City. The on-air personalities are Mike & Diane (mornings), Nikki (middays), Phil Rossi (afternoons), and Jackson Blue (weeknights). WAYV is simulcast on 105.5 WAIV in Cape May.
Document 8: WNJN-FM: WNJN-FM (89.7 FM) is a radio station licensed to Atlantic City, New Jersey. The station is owned by WHYY, Inc., and simulcasts the public radio news and talk programming of WHYY-FM in Philadelphia, Pennsylvania.
Document 9: Atlantic City, New Jersey: In the wake of the closures and declining revenue from casinos, Governor Christie said in September 2014 that the state would consider a 2015 referendum to end the 40-year-old monopoly that Atlantic City holds on casino gambling and allowing gambling in other municipalities. With casino revenue declining from $5.2 billion in 2006 to $2.9 billion in 2013, the state saw a drop in money from its 8% tax on those earnings, which is used to fund programs for senior citizens and the disabled.
Document 10: Atlantic City, New Jersey: Atlantic City is considered as the "Gambling Capital of the East Coast," and currently has eight large casinos and several smaller ones. In 2011, New Jersey's casinos employed approximately 33,000 employees, had 28.5 million visitors, made $3.3 billion in gaming revenue, and paid $278 million in taxes. They are regulated by the New Jersey Casino Control Commission and the New Jersey Division of Gaming Enforcement.
Document 11: WJMI: WJMI (99.7 FM) is a radio station licensed to Jackson, Mississippi, United States, with a Mainstream Urban musical format. The station is owned by Alpha Media through licensee Alpha Media Licensee LLC. Along with five other sister stations, its studios are located in Ridgeland, a suburb of Jackson, while the transmitter tower is south of Raymond.
Document 12: Atlantic City, New Jersey: Owing to economic conditions and the late 2000s recession, many of the proposed mega casinos never went further than the initial planning stages. One of these developers was Pinnacle Entertainment, who purchased the Sands Atlantic City, only to close it permanently November 11, 2006. The following year, the resort was demolished in a dramatic, Las Vegas styled implosion, the first of its kind in Atlantic City. While Pinnacle Entertainment intended to replace it with a $1.5–2 billion casino resort, the company canceled its construction plans and plans to sell the land. The biggest disappointment was when MGM Resorts International announced that it would pull out of all development for Atlantic City, effectively ending their plans for the MGM Grand Atlantic City.
Document 13: Atlantic City, New Jersey: Executives at Trump Entertainment Resorts, whose sole remaining property will be the Trump Taj Mahal, said in 2013 that they were considering the option of selling the Taj and winding down and exiting the gaming and hotel business.
Document 14: Atlantic City, New Jersey: In an effort at revitalizing the city, New Jersey voters in 1976 passed a referendum, approving casino gambling for Atlantic City; this came after a 1974 referendum on legalized gambling failed to pass. Immediately after the legislation passed, the owners of the Chalfonte-Haddon Hall Hotel began converting it into the Resorts International. It was the first legal casino in the eastern United States when it opened on May 26, 1978. Other casinos were soon constructed along the Boardwalk and, later, in the marina district for a total of eleven today. The introduction of gambling did not, however, quickly eliminate many of the urban problems that plagued Atlantic City. Many people have suggested that it only served to exacerbate those problems, as attested to by the stark contrast between tourism intensive areas and the adjacent impoverished working-class neighborhoods. In addition, Atlantic City has been less popular than Las Vegas, as a gambling city in the United States. Donald Trump helped bring big name boxing bouts to the city to attract customers to his casinos. The boxer Mike Tyson had most of his fights in Atlantic City in the 1980s, which helped Atlantic City achieve nationwide attention as a gambling resort. Numerous highrise condominiums were built for use as permanent residences or second homes. By end of the decade it was one of the most popular tourist destinations in the United States.
Document 15: WFAN-FM: WFAN-FM (101.9 MHz), also known as "Sports Radio 66 and 101.9 FM" or "The Fan", is a commercial FM sports radio station licensed to New York City. The station is owned and operated by Entercom, and is simulcast with WFAN (660 AM). WFAN-FM's studios are located in the combined Entercom facility in the Hudson Square neighborhood of Manhattan and its transmitter is located at the Empire State Building.
ground_truth: 40-year
sub_queries: What town or city does WMID serve? Answer: Atlantic City
How long had Atlantic City held a monopoly on casino gambling? Answer: 40-year