those days and they did not want their current club and especially the fans to know they were leaving to play elsewhere the next year. News of the signings by the Boston and Philadelphia players leaked to the press before the season ended and all of them faced verbal abuse and physical threats from the fans of those cities. He was "the premier pitcher of the 1870s", leading the league in victories for each of his six full seasons as a professional. During each of those years he was his team's only pitcher. In 1876, Spalding won 47 games as the prime pitcher for the White Stockings and led them to win the first-ever National League pennant by a wide margin. In 1877, Spalding began to use a glove to protect his catching hand. People had used gloves previously, but they were not popular, and Spalding himself was skeptical of wearing one at first. However, once he began donning gloves, he influenced other players to do so. Spalding retired from playing baseball in 1878 at the age of 27, although he continued as president and part owner of the White Stockings and a major influence on the National League. Spalding's .796 career winning percentage (from an era when teams played about once or twice a week) is the highest ever by a baseball pitcher, .058 ahead of Negro league star Dave Brown's .738. Organizer and executive In the months after signing for Chicago, Hulbert and Spalding organized the National League by enlisting the two major teams in the East and the four other top teams in what was then considered to be the West, also known as the jungle. Joining Chicago initially were the leading teams from Cincinnati, Louisville, and St. Louis. The owners of these western clubs accompanied Hulbert and Spalding to New York where they secretly met with owners from New York City, Philadelphia, Hartford, and Boston. Each signed the league's constitution, and the National League was officially born. "Spalding was thus involved in the transformation of baseball from a game of gentlemen athletes into a business and a professional sport." Although the National Association held on for a few more seasons, it was no longer recognized as the premier organization for professional baseball. Gradually, it faded out of existence and was replaced by myriad minor leagues and associations around the country. In the late 1850s, Spalding advocated