In professional sports, as opposed to amateur sports, participants receive payment for their performance. Professionalism in sport has come to the fore through a combination of developments. Mass media and increased leisure have brought larger audiences, so that sports organizations or teams can command large incomes. As a result, more sportspeople can afford to make sport their primary career, devoting the training time necessary to increase skills, physical condition, and experience to modern levels of achievement. This proficiency has also helped boost the popularity of sports. In most sports played professionally there are many more amateur than professional players, though amateurs and professionals do not usually compete.
History
Baseball
Baseball originated before the American Civil War (1861–1865). First played on sandlots in particular, scoring and record-keeping gave baseball gravity. "Today," notes John Thorn in The Baseball Encyclopedia, "baseball without records is inconceivable."
In 1871, the first professional baseball league was created. By the beginning of the 20th century, most large cities in the eastern United States had a professional baseball team. After several leagues came and went in the 19th century, the National League (founded in 1876) and American League (recognized as a major league in 1903) were established as the dominant leagues by the early 20th century. The most victorious team in each league was said to have won the "pennant;" the two pennant winners met after the end of the regular season in the World Series. The winner of at least four games (out of a possible seven) was the champion for that year. This arrangement still holds today, although the leagues are now subdivided and pennants are decided in post-season playoff series between the winners of each division.
Baseball became popular in the 1920s, when Babe Ruth led the New York Yankees to several World Series titles and became a national hero on the strength of his home runs (balls that cannot be played because they have been hit out of the field). One of the most noteworthy players was the Brooklyn Dodgers' Jackie Robinson, who became the first African-American player in the major leagues in 1947; until then black players had been restricted to the Negro leagues.
Starting in the late 1950s, major league baseball expanded its geographical range. Western cities acquired teams, either by luring them to move from eastern cities or by forming expansion teams with players made available by established teams. Until the 1970s, because of strict contracts, the owners of baseball teams also virtually owned the players; the rules then changed so that players could become free agents within certain limits, free to sell their services to any team. The resulting bidding wars led to players becoming increasingly wealthy. Disputes between the players' union and the owners have at times halted baseball for months at a time (e.g., 1994–95 player strike).
A prominent professional baseball circuit known as Nippon Professional Baseball (NPB) also developed in Japan. Founded in 1934, the league emerged as an international force after World War II. NPB is considered to be the highest caliber of baseball outside the U.S. major leagues, and the best Japanese players often emigrate to the U.S. by way of the posting system. Other countries where the game is important include South Korea (where their league has its own posting system with Major League Baseball), Taiwan, Mexico, Latin America, and the Caribbean states.
American football
American football (commonly known as football in the United States) was professionalized in the 1890s as a slow, and initially covert, process; Pudge Heffelfinger and Ben "Sport" Donnelly were the first to secretly accept payment for playing the game in 1892. Regional leagues in Chicago, Pennsylvania, Ohio and New York had coalesced in the 1900s and 1910s, most of which gave way to the American Professional Football Association in 1920. By 1920, pro football remained overshadowed by the college game. The first game involving an APFA team took place on 26 September 1920, at Douglas Park in Rock Island, Illinois, as the hometown Independents flattened the St. Paul Ideals 48–0. The first head-to-head battles in the league occurred one week later as Dayton topped Columbus 14-0 and Rock Island pasted Muncie 45–0.