Question: When was the first tennis major comprising the Grand Slam before the US Open first held?

full_context: Document 1: 2011 US Open Series: In tennis, the eighth edition of the US Open Series (known as Olympus US Open Series for sponsorships reasons), includes ten hard court tournaments that start on July 18, 2011 in Atlanta and will end in Winston-Salem for the men and in New Haven for the women on August 28, 2011. This edition has scheduled five separate men's tournaments, four women's tournaments, and the Western & Southern Open that will host both a men's and women's event. The series includes two ATP World Tour Masters 1000 and two WTA Premier 5 events to headline the series.
Document 2: Australian Open: The Australian Open is a major tennis tournament held annually over the last fortnight of January in Melbourne, Australia. First held in 1905, the tournament is chronologically the first of the four Grand Slam tennis events of the year – the other three being the French Open, Wimbledon and the US Open. It features men's and women's singles; men's, women's and mixed doubles and junior's championships; as well as wheelchair, legends and exhibition events. Prior to 1988 the tournament had been played on grass courts, but since then two types of hardcourt surfaces have been used at Melbourne Park – green coloured Rebound Ace up to 2007 and, afterwards, blue Plexicushion.
Document 3: List of Olympic medalists in tennis: Tennis was first contested as a Summer Olympic sport in the 1896 Olympic Games, held in Athens. In the inaugural Olympic Games, only two tournaments were played: men's singles and men's doubles. Women were allowed to start to compete in singles and mixed doubles tennis events at the Olympic Games in 1900. Between 1928 and 1988, tennis was not included in the official Olympic program. Demonstration tennis events were, however, held twice, first in 1968 and later 1984. It was reinstated as a medal sport in 1988.
Document 4: 1983 Australian Open – Women's Singles: First-seeded Martina Navratilova defeated ninth-seeded Kathy Jordan 6–2, 7–6 in the final to win the Women's Singles title at the 1983 Australian Open tennis tournament. The tournament was played on grass courts at the Kooyong Stadium in Melbourne from 29 November through 11 December 1983. Navratilova earned $75,000 prize money for winning the title, her 8th career Grand Slam singles title and her 2nd title at the Australian Open after 1981. She improved her year record to 86 wins and 1 loss. This tournament was also notable for being the first Australian Open in which Steffi Graf appeared in the main draw, and the last time that Billie Jean King appeared in the main singles draw of a grand slam.
Document 5: 2017 US Open Series: In tennis, the 2017 US Open Series was the fourteenth edition of the US Open Series, which comprised a group of hard court tournaments that started on July 24, 2017 in Atlanta and concluded in Connecticut for the women and in Winston-Salem for the men on August 26, 2017. This edition consisted of three separate men's tournaments and three women's tournaments, with the Western & Southern Open hosting both a men's and women's event. The series was headlined by two ATP World Tour Masters 1000 and two WTA Premier 5 events.
Document 6: 1997 Wimbledon Championships: The 1997 Wimbledon Championships was a tennis tournament played on :grass courts at the All England Lawn Tennis and Croquet Club in Wimbledon in London in England. It was the 111th edition of the Wimbledon Championships and were held from 23 June to 6 July 1997. The championships saw the inauguration of a new No.1 Court, the third court to be named such in the club's history. To commemorate the new stadium, all the three-time or more singles champions were invited to a ceremony marking the opening of the new court and were presented with a silver salver. Ten of the thirteen surviving eligible champions attended: Louise Brough, Rod Laver, Margaret Court, Billie Jean King, John Newcombe, Chris Evert, Martina Navratilova, John McEnroe, Boris Becker and Pete Sampras. The only surviving absentees were Maria Bueno and Björn Borg who declined to attend and Steffi Graf who was recovering from knee surgery and unable to be present.
Document 7: 1988 US Open – Men's Singles: Mats Wilander defeated three time defending champion Ivan Lendl, 6–4, 4–6, 6–3, 5–7, 6–4 in the final to win the Men's Singles title at the 1988 US Open. This was the longest US Open men's final in history, clocking in at four hours and fifty-four minutes; this record was matched in 2012 when Andy Murray defeated Novak Djokovic in that year's final.
Document 8: Tennis New Zealand: The history of tennis in New Zealand dates back to the 1870s, the decade when the development of modern tennis began. The first "New Zealand Tennis Championships" were played at Farndon in Hawkes Bay in 1886. New Zealand Lawn Tennis Association (NZLTA) was formed at a meeting held in Hastings in December 1886. Shortly after its inauguration, the New Zealand Association became affiliated with the Lawn Tennis Association (England). In 1904 New Zealand Lawn Tennis Association amalgamated with six Australian state tennis associations to form the Lawn Tennis Association of Australasia. New Zealand Lawn Tennis Association played a significant role in the origin of the Australian Open. Lawn Tennis Association of Australasia created the tournament called "The Australasian Mens Championships" (which later became Australian Open) in 1905 and was first played in Warehouseman's Cricket Ground and it was decided that championships would be hosted by both Australian as well as New Zealand venues. New Zealand hosted the championship twice— Christchurch (1906) and Hastings (1912). The geographical remoteness of both the countries (Australia and New Zealand) made it difficult for foreign players to enter the tournament. In Christchurch in 1906, of a small field of 10 players, only two Australians attended, and the tournament was won by a New Zealander (Tony Wilding). Lawn Tennis Association of Australasia was one of the twelve national associations of tennis which established the International Lawn Tennis Federation (ILTF) in a conference in Paris, France on 1 March 1913. From 1905 until 1919, New Zealand and Australian tennis players participated in the International Lawn Tennis Challenge (Davis Cup) under the alias of "Team Australasia", the team claimed a title six times (1907, 1908, 1909, 1911, 1914, 1919), however, there were attempts to severance this trans-tasmanian partnership, in order to allow New Zealand players to represent their nation on international tennis events. In 1922, New Zealand dropped out from this partnership and on 16 March 1923 New Zealand Lawn Tennis Association was granted affiliation to the International Lawn Tennis Association and thereby became eligible to enter the International Lawn Tennis Challenge in its own right. New Zealand Lawn Tennis Association filed its first challenge with United States Lawn Tennis Association for 1924 International Lawn Tennis Challenge. Tennis New Zealand was the founding member of Oceania Tennis Federation in 1993.
Document 9: 2017 Australian Open – Men's singles final: The 2017 Australian Open Men's Singles final was the championship tennis match of the Men's Singles tournament at the 2017 Australian Open. It was contested between Roger Federer and Rafael Nadal, ranked 17th and 9th in the world respectively. It was their record ninth meeting in a Grand Slam final in their rivalry, and their 1st meeting in a Grand Slam final since the 2011 French Open. In a rematch of the 2009 Australian Open final, which Nadal won in 5 sets, Roger Federer won the duel in 5 sets, beating Nadal for the first time in a Grand Slam since the 2007 Wimbledon final. He also trailed Nadal 3–1 in the final set but won 5 games in a row to win the title. This ended a 6-match losing streak against Nadal in Grand Slam events. Having lost all of their previous three encounters, this was the first time Federer defeated Nadal at the Australian Open and also marked Federer's first Grand Slam victory over Nadal outside the grass courts of Wimbledon. Federer extended his record of Grand Slam men's singles titles to 18, marking the third time he broke his own all-time record, after breaking the previous record of 14, held by Pete Sampras.
Document 10: US Open (tennis): The United States Open Tennis Championships is a hard court tennis tournament. The tournament is the modern version of one of the oldest tennis championships in the world, the U.S. National Championship, for which men's singles was first contested in 1881. Since 1987, the US Open has been chronologically the fourth and final tennis major comprising the Grand Slam each year; the other three, in chronological order, are the Australian Open, the French Open and Wimbledon.
Document 11: Grand Slam (tennis): The Grand Slam tournaments, also called majors, are the four most important annual tennis events. They offer the most ranking points, prize money, public and media attention, the greatest strength and size of field, and greater number of "best of" sets for men. The Grand Slam itinerary consists of the Australian Open in mid January, the French Open in May and June, Wimbledon in July, and the US Open in August and September. Each tournament is played over a period of two weeks. The Australian and United States tournaments are played on hard courts, the French on clay, and Wimbledon on grass. Wimbledon is the oldest, founded in 1877, followed by the US in 1881, the French in 1891, and the Australian in 1905. However, of these four, only Wimbledon was a major before 1924–25, when all four became designated Grand Slam tournaments. Skipping Grand Slam tournaments—especially the Australian Open because of the remoteness, the inconvenient dates (around Christmas and New Year's Day) and the low prize money—was not unusual before 1982, which was the start of the norm of counting Grand Slam titles.
Document 12: 2016 Australian Open: The 2016 Australian Open was a tennis tournament that took place at Melbourne Park between 18–31 January 2016. It was the 104th edition of the Australian Open, and the first Grand Slam tournament of the year. The tournament consisted of events for professional players in singles, doubles and mixed doubles play. Junior and wheelchair players competed in singles and doubles tournaments.
Document 13: 1984 US Open – Women's Singles: Martina Navratilova was the defending champion, and she successfully defended her title, defeating last year's finalist Chris Evert in the final. This victory was Navratilova's sixth straight Major title, tying her with Margaret Court and Maureen Connolly for the most consecutive Grand Slam titles won. Navratilova became the first player to win Grand Slams on clay, grass and hard court on the same calendar year, after having won the French Open and Wimbledon.
Document 14: 1968 US Open (tennis): The 1968 US Open (formerly known as U.S. National Championships) was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York, United States. The tournament ran from 29 August until 8 September. It was the 88th staging of the tournament and the fourth Grand Slam event of 1968. It was the first edition of the tournament in the Open Era of tennis and as such for the first time offered prize money, totaling $100,000. Arthur Ashe and Virginia Wade won the singles titles. Ashe was still registered as an amateur and therefore not entitled to the $14,000 first-prize money, which instead went to runner-up Tom Okker, while Wade earned $6,000. Frank Parker, at the age of 52, lost to eventual champion Arthur Ashe in the second round, and still holds the record for the oldest man to compete in a Grand Slam singles tournament.
Document 15: Brisbane International: The origins of the Brisbane International trace back to the early 1970s, when the Grand Prix tennis circuit, formed in 1970, and which ran concurrently with other tours as the World Championship Tennis circuit, decided to feature on its calendar an event in Queensland to develop a South West Pacific season around the Australian Open - then taking place in Brisbane - alongside other Oceanian events of Sydney, New South Wales; Hobart, Tasmania; and Auckland, New Zealand. The Adelaide-based South Australian Tennis Championships, running as an amateur, then as a State championship, since 1889, were brought to the professional circuit in 1972. The first professional edition of the men's event, played, like the Australian Open, on outdoor grass courts, saw the victory of Soviet Alex Metreveli over Kim Warwick, while the women's event, still not featured in either the Commercial Union Grand Prix circuit or the Virginia Slims circuit, saw Australian Evonne Goolagong win the title.
ground_truth: 1905