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.
1922 U.S. National Championships (tennis) The 1922 U.S. National Championships (now known as the US Open) was a tennis tournament that took place on the outdoor grass courts at the Germantown Cricket Club in Philadelphia, United States. The tournament ran from 8 September until 16 September. It was the 42nd staging of the U.S. National Championships and the third Grand Slam tennis event of the year.