Question: What is the birthday of the Las Vegas mayor who presided over the grand opening of SkyJump Las Vegas?

Context paragraphs:
Oakland Raiders relocation to Las Vegas: The Oakland Raiders relocation to Las Vegas was a successful effort by the owner of the Oakland Raiders (Mark Davis) to relocate the American football club from its current and longtime home of Oakland, California to Las Vegas, Nevada.  The team is scheduled to begin play as the Las Vegas Raiders for the 2020 National Football League (NFL) season (although a move to Las Vegas could happen as soon as 2019 with Sam Boyd Stadium), playing home games at the Las Vegas Stadium.  NFL team owners voted 31–1 to approve the move, which was announced at the annual league meetings in Phoenix, Arizona on March 27, 2017.  The Raiders became the third NFL franchise to relocate in the 2010s, following the Rams' move from St. Louis, Missouri to Los Angeles, California on January 12, 2016, and the Chargers' move from San Diego, California to Los Angeles on January 12, 2017.  The Raiders' move to Las Vegas comes after years of failed efforts to renovate or replace the Oakland–Alameda County Coliseum, which has been rated by multiple sources as one of the worst stadiums in the NFL.

Air Vegas: Air Vegas (IATA: 6V, ICAO: VGA, Call sign: Air Vegas) was an airline with its headquarters on the grounds of the North Las Vegas Air Terminal in North Las Vegas, Nevada.  It operated daily sightseeing flights from Las Vegas to the Grand Canyon.  Prior to moving to the North Las Vegas Airport its main bases were McCarran International Airport (LAS), Las Vegas and Henderson Executive Airport (HND), Las Vegas.

Sports in the Las Vegas metropolitan area: The Las Vegas metropolitan area is home to many sports, most of which take place in the unincorporated communities around Las Vegas rather than in the city itself.  The Las Vegas Valley has one major league professional team: the Vegas Golden Knights of the National Hockey League (NHL) who began play in 2017 as the region's first major pro team.  The Oakland Raiders of the National Football League (NFL) will begin play in Las Vegas as the "Las Vegas Raiders" by 2020 and become the region's second major professional team.  Las Vegas is also home to one minor league sports team: the Las Vegas 51s of the Triple-A Pacific Coast League (Minor League Baseball).  The 51s are currently the only team to actually play in the city of Las Vegas, playing at the city owned Cashman Field.  They will be joined in 2018 by the Las Vegas Lights FC of the United Soccer League, one of two leagues that collectively make up the second level of the U.S. men's soccer league system.

Robertson High School: Robertson High School (RHS) is a public senior high school in Las Vegas, New Mexico.  The school is part of the Las Vegas City Schools District in former East Las Vegas.  The building dates from about 1945, when it was known as Las Vegas High School.  The school was renamed Las Vegas Robertson High School in 1958, after the old Las Vegas High School burned down and a new building was constructed.  W. J. Robertson had been the Superintendent of the Las Vegas City Schools since 1941 when he suffered a fatal heart attack on November 26, 1956 at the age of 55.  Mr. Robertson, born in Kansas on November 3, 1901 also served as Principal at Las Vegas High School for many years prior.  The colors of RHS are red and white, their mascot is the Cardinal.  The enrollment currently stands at 607.

Las Vegas–Paradise, NV MSA: The Las Vegas–Paradise, NV MSA, also known as the Las Vegas–Henderson–Paradise, NV Metropolitan Statistical Area (2013), is in the southern part of the U.S. state of Nevada, coextensive since 2003 with Clark County, Nevada.  A central part of the metropolitan area is the Las Vegas Valley, a 600 sqmi basin that includes the metropolitan area's largest city, Las Vegas as well as the other primary city, Paradise, Nevada.  The area contains the largest concentration of people in the state.  Cities in the metropolitan area include Las Vegas, Henderson, North Las Vegas, and Boulder City.  The metropolitan area is one of the top tourist destinations in the world, drawing over 40 million international and domestic visitors in 2013 with a GMP of US$103.3 billion.

David Chesnoff: David Zeltner Chesnoff (born May 13, 1955) is a criminal defense attorney based in Las Vegas, Nevada, USA.  Chesnoff was a law partner of Las Vegas Mayor, Oscar B. Goodman.  Chesnoff has represented celebrities as well as crime figures.

Oscar Goodman: Oscar Baylin Goodman (born July 26, 1939) is an American attorney and politician.  He was the mayor of Las Vegas, Nevada from 1999 to 2011.  Goodman is an Independent and a former member of the Democratic Party.

SkyJump Las Vegas: SkyJump Las Vegas holds the Guinness World Record for highest commercial decelerator descent with an official height of 829 ft and is located at Stratosphere Las Vegas.  As part of its grand opening event, Las Vegas Mayor Oscar Goodman presented a written proclamation deeming April 20, 2010 as SkyJump Day in Las Vegas.

Tropicana – Las Vegas Boulevard intersection: The Tropicana – Las Vegas Boulevard intersection on the Las Vegas Strip (Tropicana Avenue and Las Vegas Boulevard), is noteworthy for several reasons.  It was the first intersection in Las Vegas completely closed to street level pedestrian traffic and its four corners are home to four major resorts: Excalibur Hotel and Casino, Tropicana Las Vegas, New York-New York Hotel and Casino and MGM Grand Las Vegas—the latter has 5,044 rooms and was once the largest hotel in the world.  The resorts at the four corners have a total of 12,536 hotel rooms as of 2016.

Las Vegas Uncork'd: Las Vegas Uncork'd (also referred to as Vegas Uncork'd and Vegas Uncorked) is an annual culinary and wine event in Las Vegas, Nevada.  The concept was developed by the Las Vegas Convention and Visitors Authority, their advertising agency R&R Partners and Las Vegas resort partners who originally considered a number of magazine partners such as Bon Appetit, Food & Wine and Gourmet.  Bon Appetit was selected as the magazine partner after a review with each magazine.  The event was launched in 2007 by the Las Vegas Convention and Visitors Authority, "Bon Appétit" magazine led by Editor-in-Chief Barbara Fairchild and co-creator and Executive Director Rob O'Keefe who led the first five years of development of what Eater.com called "the world's most innovative culinary event".  Las Vegas resort partners over the years include Bellagio, Caesars Palace and Wynn Las Vegas, MGM Grand, Mandalay Bay, The Venetian, Las Vegas and The Palazzo and each year the event features more than 80 celebrated chefs and over 25 events occurring over a spectacular four-day weekend.

Supporting paragraphs: SkyJump Las Vegas Oscar Goodman
Answer: July 26, 1939