Baseball

Baseball is a bat-and-ball sport played between two teams of nine players each. The goal of baseball is to score runs by hitting a thrown ball with a bat and touching a series of four markers called bases arranged at the corners of a ninety-foot square, or diamond. Players on one team (the batting team) take turns hitting while the other team (the fielding team) tries to stop them from scoring runs by getting hitters out in any of several ways. A player on the batting team can stop at any of the bases and hope to score on a teammate's hit. The teams switch between batting and fielding whenever the fielding team gets three outs. One turn at bat for each team constitutes an inning; nine innings make up a professional game. The team with the most runs at the end of the game wins.

Baseball on the professional, amateur, and youth levels is popular in North America, Central America, parts of South America and the Caribbean, and parts of East Asia and Southeast Asia. The modern version of the game developed in North America, beginning in the eighteenth century. The consensus of historians is that it evolved from earlier bat-and-ball games, such as cricket and rounders, brought to the continent by British and Irish immigrants. By the late nineteenth century, baseball was widely recognized as the national sport of the United States. The game is sometimes referred to as hardball in contrast to the very similar game of softball.

In North America, professional Major League Baseball teams are divided into the National League (NL) and American League (AL). Each league has three divisions: East, West, and Central. Every year, the champion of Major League Baseball is determined by playoffs culminating in the World Series. Four teams make the playoffs from each league: the three regular season division winners, plus one wild card team. The wild card is the team with the best record among the non–division winners in the league. In the National League, the pitcher is required to bat, per the traditional rules. In the American League, there is a tenth player, a designated hitter, who bats for the pitcher. Each major league team has a "farm system" of minor league teams at various levels. These teams allow younger players to develop as they gain on-field experience against opponents with similar levels of skill.

The story that Abner Doubleday invented baseball in 1839 was once widely promoted and widely believed. There was and is no evidence for this claim, except for the testimony of one man decades after the fact, and there is a great deal of persuasive counter-evidence. Doubleday left many letters and papers, but they contain no description of baseball or even a suggestion that he considered himself a prominent person in the history of the game. His New York Times obituary makes no mention of baseball, nor does a 1911 encyclopedia article about Doubleday. (For more, see Abner Doubleday)

The distinct evolution of baseball from among the various bat-and-ball games is difficult to trace with precision. Oina, a very similar bat-and-ball traditional game played in Romania was mentioned for the first time during the rule of King Vlaicu Voda, in 1364. While there has been general agreement that modern baseball is a North American development from the older game rounders, the 2006 book Baseball Before We Knew It: A Search for the Roots of the Game, by David Block, argues against that notion. Several references to "baseball" and "bat-and-ball" have been found in British and American documents of the early eighteenth century.The earliest known description is in a 1744 British publication, A Little Pretty Pocket-Book, by John Newbery.It contains a wood-cut illustration of boys playing "base-ball," showing a baseball set-up roughly similar to the modern game, and a rhymed description of the sport. The earliest known unambiguous American discussion of "baseball" was published in a 1791 Pittsfield, Massachusetts, town bylaw that prohibited the playing of the game within 80 yards (70 m) of the town's new meeting house. The English novelist Jane Austen made a reference to children playing "base-ball" on a village green in her book Northanger Abbey, which was written between 1798 and 1803 (though not published until 1818).

The first full documentation of a baseball game in North America is Dr. Adam Ford's contemporary description of a game that took place in 1838 on June 4 (Militia Muster Day) in Beachville, Ontario, Canada; this report was related in an 1886 edition of Sporting Life magazine in a letter by former St. Marys, Ontario, resident Dr. Matthew Harris. In 1845, Alexander Cartwright of New York City led the codification of an early list of rules (the so-called Knickerbocker Rules), from which today's have evolved. He had also initiated the replacement of the soft ball used in rounders with a smaller hard ball. While there are reports of Cartwright's club, the New York Knickerbockers, playing games in 1845, the game now recognized as the first in U.S. history to be officially recorded took place on June 19, 1846, in Hoboken, New Jersey, with the "New York Nine" defeating the Knickerbockers, 23–1, in four innings.

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