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.
1908 U.S. National Championships (tennis) List of champions of the 1908 U.S. National Championships tennis tournament (now known as the US Open). The men's tournament was held from 18 August to 29 August on the outdoor grass courts at the Newport Casino in Newport, Rhode Island. The women's tournament was held from 22 June to 27 June on the outdoor grass courts at the Philadelphia Cricket Club in Philadelphia, PA. It was the 28th U.S. National Championships and the second Grand Slam tournament of the three played that year.