Question: When did the location of the Dwyer Stakes first open?
Context: Vincentive (foaled 1940) was an American Thoroughbred racehorse from Maryland who won the 55th running of the Dwyer Stakes at Belmont Park on June 19, 1943.  Owned by William Leavitt Brann, the colt defeated Famous Victory, owned by Mrs. Payne Whitney.  Vincentive was ridden by jockey Johnny Gilbert, who weighed 111 pounds.  The win was worth $19,600. Crusader (1923–1940) was an American Thoroughbred racehorse.  In a career which lasted from 1925 to 1928 he ran forty-two times and won eighteen races.  He was the leading American three-year-old of 1926 when he won a number of important races including the Suburban Handicap, the Belmont Stakes and the Dwyer Stakes.  He continued to race for a further two seasons but his form declined after he was injured at Aqueduct Racetrack in June 1927. The Dwyer Stakes is an American Grade III stakes race for three-year-old thoroughbred racehorses held annually at Belmont Park racetrack in Elmont, Long Island, New York.  Run in early July, it is open to three-year-old horses and is raced over a distance of 1 mile on dirt.  It currently offers a purse of $500,000. The 1975 Open Championship was the 104th Open Championship, played 9–13 July at Carnoustie Golf Links in Scotland.  In his first Open, Tom Watson won an 18-hole playoff by one stroke over Jack Newton to win the first of his eight major titles, which included five Open Championships. Damascus (April 14, 1964 – August 8, 1995) was a Thoroughbred race horse sired by Sword Dancer (1959's Horse of the Year) out of Kerala (by My Babu) foaled at the Jonabell Farm in Lexington, Kentucky.  In 1967, he won the Preakness Stakes, Belmont Stakes*, Jockey Club Gold Cup*, Wood Memorial, Travers Stakes, Dwyer Stakes (closing from 12 lengths back and spotting the runner up 16 pounds), and Woodward Stakes and was named Horse of the Year and champion three-year-old colt, plus he shared the champion handicap male honors with Buckpasser.  Also in 1967, Damascus finished third in the 1967 Kentucky Derby.  A high-strung horse, he was enervated by the humidity and spooked by the crowd noise, so he was thereafter given a stable pony to calm him.  During the same year, top horses Dr. Fager and Buckpasser were also competing.  In Blood-Horse magazine's top 100 U.S. thoroughbred champions of the 20th Century, Buckpasser ranks 14th and Dr. Fager ranks 6th.  In a race many consider the "Race of the Century," Damascus won the 1967 Woodward by 10 lengths over both of these horses after his connections, as well as those of Buckpasser, used stablemates to set a blistering pace, thus weakening Dr. Fager.  Damascus himself ranks number 16 in the Blood Horse listing. Western High-Speed Diameter (Russian: Западный скоростной диаметр, abbreviated ЗСД, "ZSD" ) is a toll motorway in Saint Petersburg, Russia.  The first segment of the road open to traffic was an eight-lane motorway connecting the southern segment of the A118 beltway with two junctions at the Kirovsky and Moskovsky Districts, respectively.  Other segments of the highway were under construction and eventually formed a corridor through the western districts of St Petersburg to cross the northern portion of the A118 beltway in Yuntolovo and to meet the E-18/M-10 route at the Beloostrov junction.  A new 4-km-long section of the highway was slated to open in late 2011.  It connects the northern terminus of the first open segment with the industrial western part of the Kirovsky district which hosts the port of St Petersburg.  A 25-km-long section running from Beloostrov to the Primorsky District was scheduled to open in late 2012.  The overall length of the Western High-Speed Diameter highway was projected at 47 km upon the scheduled completion in 2013 - 2014.  The initial rate for passenger cars and other two axle vehicles was 30 rubles, with higher rates for vehicles with more axles.  A discount is given during the overnight hours (11 pm - 7 am) and for the vehicles equipped with a transponder.  WHSD cost 210 billion rubles.  In December, 2016 the whole motorway was open for traffic. The 1928 Open Championship was the 63rd Open Championship, held 9–11 May at Royal St George's Golf Club in Sandwich, England.  Walter Hagen won the third of his four Open Championship titles, two strokes ahead of runner-up Gene Sarazen.  It was his second triumph at Royal St George's, the site of his first Open win in 1922.  It was the tenth of his eleven major titles; his second Open victory came in 1924 at Royal Liverpool. Belmont Park is a major Thoroughbred horse-racing facility located in Elmont, New York, just outside New York City limits.  It first opened on May 4, 1905.  It is typically open for racing from late April through mid-July (known as the Spring meet), and again from mid-September through late October (the Fall meet). The 1968 British Hard Court Championships was a combined men's and women's tennis tournament played on outdoor clay courts at The West Hants Club in Bournemouth in England.  It was the first tournament in the Open Era of tennis.  The tournament was held from 22 April to 27 April 1968.  Ken Rosewall and Virginia Wade won the first open singles titles while the men's team of Roy Emerson and Rod Laver and the women's team of Christine Truman Janes and Nell Truman won the first open doubles titles. The 1977 Open Championship was the 106th Open Championship, held 6–9 July on the Ailsa Course at Turnberry, Scotland.  Tom Watson won the second of his five Open titles by one stroke over runner-up Jack Nicklaus.  The two played together in the final two rounds and had separated themselves from the field under clear skies, leading this Open to be remembered as the "Duel in the Sun."  This was the first Open ever held at Turnberry, which renamed its 18th hole after the duel.  Three months earlier, Watson had held off Nicklaus to win his first green jacket at the Masters.
Answer: May 4, 1905