When was the first tennis major comprising the Grand Slam before the US Open first held?
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.
1978 US Open (tennis) The 1978 US Open was a tennis tournament played on outdoor hard courts at the USTA National Tennis Center in New York City in New York in the United States. It was the 99th edition of the US Open and the fourth Grand Slam tennis event of the year. The tournament was held from August 28 to September 10, 1978, and the singles titles were won by Jimmy Connors and Chris Evert. This was the first year the US Open was played at the National Tennis Center in Flushing Meadows after having been organized at the West Side Tennis Club venue in Forest Hills since 1915. It was also the first time the tournament was played on hard courts, as opposed to much of its history on grass and a brief stint, from 1975 through 1977, on clay.