| Baseball is a sport played between two teams | | | | pitcher. Each major league team has a "farm |
| usually of nine players each. It is a bat-and-ball | | | | system" of minor league teams at various levels. |
| game in which a pitcher throws (pitches) a hard, | | | | These teams allow younger players to gain |
| fist-sized, leather-covered ball toward a batter on | | | | experience against opponents with similar levels of |
| the opposing team. The batter attempts to hit | | | | skill. |
| the baseball with a tapered cylindrical bat, made | | | | The distinct evolution of baseball from among the |
| of wood (as required in professional baseball) or a | | | | various bat-and-ball games is difficult to trace with |
| variety of other materials (as allowed in many | | | | precision. While there has been general agreement |
| nonprofessional games). A team scores runs only | | | | that modern baseball is a North American |
| when batting, by advancing its | | | | development from the older game rounders, the |
| players—primarily via | | | | 2006 book Baseball Before We Knew It: A |
| hits—counterclockwise past a series of | | | | Search for the Roots of the Game, by David |
| four markers called bases arranged at the | | | | Block, argues against that notion. The earliest |
| corners of a ninety-foot square, or "diamond." | | | | known mention of the sport is in a 1744 British |
| The game, played without time restriction, is | | | | publication, A Little Pretty Pocket-Book, by John |
| structured around nine segments called innings. In | | | | Newbery. It contains a wood-cut illustration of |
| each inning, both teams are given the opportunity | | | | boys playing "base-ball," showing a set-up roughly |
| to bat and score runs; a team's half-inning ends | | | | similar to the modern game, and a rhymed |
| when three outs are recorded against that team. | | | | description of the sport. The earliest known |
| Baseball on both the professional and amateur | | | | American reference to the game was published in |
| levels is popular in North America, Central | | | | a 1791 Pittsfield, Massachusetts, statute that |
| America, parts of South America, parts of the | | | | prohibited the playing of baseball within 80 yards |
| Caribbean, and East Asia. The modern version of | | | | of the town's new meeting house. The English |
| the game developed in North America beginning in | | | | novelist Jane Austen made a reference to children |
| the eighteenth century. The consensus of | | | | playing "base-ball" on a village green in her book |
| historians is that it evolved from earlier | | | | Northanger Abbey, which was written between |
| bat-and-ball games, such as rounders, brought to | | | | 1798 and 1803 (though not published until 1818). |
| the continent by British and Irish immigrants. By | | | | The first full documentation of a baseball game in |
| the late nineteenth century, baseball was widely | | | | North America is Dr. Adam Ford's contemporary |
| recognized as the national sport of the United | | | | description of a game that took place in 1838 on |
| States. The game is sometimes referred to as | | | | June 4 (Militia Muster Day) in Beachville, Ontario; |
| hardball to differentiate it from similar sports such | | | | this report was related in an 1886 edition of |
| as softball. | | | | Sporting Life magazine in a letter by former St. |
| In the United States, professional Major League | | | | Marys, Ontario, resident Dr. Matthew Harris. In |
| Baseball teams are divided into the National | | | | 1845, Alexander Cartwright of New York City led |
| League (NL) and American League (AL). Each | | | | the codification of an early list of rules (the |
| league has three divisions: East, West, and Central. | | | | so-called Knickerbocker Rules), from which today's |
| Every year, the champion of Major League | | | | have evolved. He had also initiated the |
| Baseball is determined by playoffs culminating in | | | | replacement of the soft ball used in rounders with |
| the World Series. Four teams make the playoffs | | | | a smaller hard ball. While there are reports of |
| from each league: the three division leaders, plus | | | | Cartwright's club, the New York Knickerbockers, |
| one wild card team with the best record among | | | | playing games in 1845, the game now recognized |
| the remaining teams in the league. In the National | | | | as the first in U.S. history to be officially recorded |
| League, the pitcher is required to bat, per the | | | | took place on June 19, 1846, in Hoboken, New |
| traditional rules. In the American League, there is a | | | | Jersey, with the "New York Nine" defeating the |
| tenth player, a designated hitter, who bats for the | | | | Knickerbockers, 23–1, in four innings. |