Club is founded in Oakmont, Pennsylvania, designed by Henry Fownes. It is widely regarded as one of the finest examples of penal-style golf architecture. 1904 Walter Travis becomes the first American to win the British Amateur using the center-shafted, Schenectady putter. Golf makes its second and final Olympic appearance at the Olympic Games in St. Louis. 1905 John Hamilton Gillespie opens a nine-hole course in Sarasota. Women golfers from Britain and the United States play an international match, with the British winning 6 matches to 1. The first dimple-pattern for golf balls is patented by William Taylor in England. The Complete Golfer by Harry Vardon is published. It promotes and demonstrates the Vardon or overlapping grip. The Toronto Golf Club hosts the Canadian Open and then again in 1909, 1914, 1921 and 1927. 1906 Goodrich introduces a golf ball with a rubber core filled with compressed air. The "Pneu-matic" proves quite lively, but also prone to explode in warm weather, often in a golfer's pocket. The ball is eventually discontinued; at this time the Haskell ball achieves a dominance of the golf ball market. 1907 Arnaud Massy becomes the first golfer from Continental Europe to win The Open Championship. 1908 Mrs. Gordon Robertson, at Princes Ladies GC, becomes the first female professional. The Mystery of Golf by Arnold Haultain is published. The golf magazine The American Golfer is launched by Walter Travis. A dispute over the format of the competition leads to the cancellation of the golf tournament at the 1908 Summer Olympics. The Great Southern Golf Club was the first golf course was in Mississippi. Fort Wayne Country Club in Fort Wayne, IN was formed. 1909 The USGA rules that caddies, caddymasters and greenkeepers over the age of sixteen are professional golfers. The ruling is later modified and eventually reversed in 1963. 1910–1920 1910 The R & A bans the center-shafted putter while the USGA keeps it legal - marking the beginning of a 42-year period with two official versions of The Rules of Golf. Steel shafts are patented by Arthur F. Knight. 1911 The United States gets its first national standardized handicapping system. John McDermott becomes the first native-born American to win the U.S. Open. At 19 years of age, he is also the youngest winner to date. 1912 John Ball wins his eighth British Amateur championship, a record not yet equalled. 1913 Francis Ouimet, age 20, becomes