
Basketball is a team sport played by two teams, most commonly of five players each, on a rectangular court. The primary objective is to shoot a basketball through the defender's hoop, also known as a basket, while preventing the opposing team from doing the same. The game was invented in 1891 by Canadian-American gym teacher James Naismith in Springfield, Massachusetts, and has since become one of the world's most popular and widely viewed sports. The basketball itself is made up of several components, including a hollow bladder, nylon thread, and a leather sleeve, and is divided into segments by ribs that are recessed below the surface. These segments are essential to the game, as they give the ball its light weight, round shape, and bounce, allowing players to dribble, pass, and shoot the ball with precision and control.
| Characteristics | Values |
|---|---|
| Sport type | Team sport |
| Teams | Two teams, most commonly of five players each |
| Court | Rectangular |
| Objective | Shoot a basketball through the defender's hoop |
| Basketball diameter | Approximately 9.4 inches (24 cm) |
| Hoop diameter | 18 inches (46 cm) |
| Hoop height | 10 feet (3.05 m) |
| Backboard | Mounted at each end of the court |
| Field goal | Worth two points unless made from behind the three-point line, when it is worth three |
| Foul | Timed play stops and the player fouled or designated to shoot a technical foul is given one, two or three one-point free throws |
| Winner | The team with the most points at the end of the game |
| Tie | If the score is tied, an additional period of play (overtime) is mandated |
| Ball advancement | By bouncing, walking or running (dribbling) or by passing to a teammate |
| Ball construction | Inflatable inner rubber bladder wrapped in nylon thread and encased in a leather sleeve |
| Ball colour | Orange with black ribs and a possible logo (traditional) but sold in various colours |
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What You'll Learn
- Basketball was invented in 1891 by Canadian-American gym teacher James Naismith
- The first basketballs were made from soccer balls
- The basketball is the only equipment necessary to play, besides the court and baskets
- The ball must be light, round, elastic, and durable
- The tallest player is usually the center

Basketball was invented in 1891 by Canadian-American gym teacher James Naismith
Naismith wrote and developed the original 13 rules of basketball, which were auctioned at Sotheby's, New York, in December 2010. The rules were purchased for a record US$4,338,500, the highest amount ever paid for a sports memorabilia item. The game quickly spread throughout the country via the YMCA network.
The first game of "Basket Ball" was played in December 1891. In a handwritten report, Naismith described the first game, which featured nine players per team, a soccer ball, and peach baskets as goals. The original game also lacked dribbling, as the ball used had laces, which made bounce passes and dribbling unpredictable.
Basketball has since evolved into one of the world's most popular and widely viewed sports. The game grew so popular on campus that there were calls to name it "Naismith Ball". Naismith lived to see basketball adopted as an Olympic demonstration sport in 1904 and as an official event at the 1936 Summer Olympics in Berlin.
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The first basketballs were made from soccer balls
Basketball was invented in 1891 by James Naismith, a physical education teacher at the International YMCA Training School in Springfield, Massachusetts. He sought to create an indoor activity that his students could play during the winter months. The first basketball games were played using soccer balls, also known as "association football" balls, as basketballs did not exist at the time. These early soccer balls were made with laces to close off the hole needed for inserting the inflatable bladder. However, these laces could cause bounce passes and dribbling to be unpredictable.
Naismith's original game involved students throwing or batting a soccer ball into peach baskets nailed to the railing of the gymnasium balcony, which happened to be 10 feet off the ground. This height became the standard for official NBA hoops. The game was played with two teams of nine players each, with three forwards, three centers, and three backs per team. Players wore black, full-sleeve woolen jerseys and long gray trousers.
The rules of the game were first published in January 1892 in the Springfield College school magazine, The Triangle. These rules included guidelines for fouls and ball movement, such as prohibiting running with the ball and emphasizing that it must be thrown from the spot where it is caught. The first official basketball game was played shortly after in YMCA gymnasium in Albany, New York, on January 20, 1892.
In 1894, the soccer ball was replaced by a ball that Naismith contacted Spalding to create. This marked a transition away from using soccer balls in basketball, as the sport began to develop its own specialized equipment. The game of basketball has since undergone various rule changes and evolutions, but it remains one of the world's most popular and widely viewed sports.
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The basketball is the only equipment necessary to play, besides the court and baskets
Basketball is a team sport that was invented in 1891 by Canadian-American gym teacher James Naismith in Springfield, Massachusetts. It has since become one of the world's most popular and widely viewed sports. The equipment in basketball is simple and consists of the basketball, the court, and the baskets. Aside from the court and the baskets, the basketball is the only piece of equipment necessary to play the game.
The ball is the key component of the game and must be durable, easy to hold, light, round, elastic, and bouncy. The first basketballs were made from panels of leather stitched together with a rubber bladder inside. Today, basketballs are made with an inflatable inner rubber bladder, wrapped in layers of nylon thread and covered in leather, rubber, or a synthetic composite. The surface of the ball is often divided by "ribs" that are recessed below the surface in various configurations and are generally a contrasting colour to the ball. The traditional colour scheme is orange with black ribs, but basketballs are sold in a variety of colours.
The game of basketball centres around the ball and the actions of dribbling, passing, and shooting. Dribbling involves bouncing the ball while walking or running, and passing involves throwing the ball to a teammate. Shooting involves throwing the ball towards the basket, with the aim of getting it through the defender's hoop. The primary objective of the game is to shoot the basketball through the defender's hoop while preventing the opposing team from doing the same.
The simplicity of the equipment needed for basketball is part of the beauty of the sport. With just a ball, a court, and some baskets, anyone can play and enjoy the game, making it accessible to people of all ages and backgrounds. This simplicity also allows for creativity and skill development as players learn to dribble, pass, and shoot in a variety of ways.
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The ball must be light, round, elastic, and durable
The ball is the most important piece of equipment in basketball. It needs to be light, round, elastic, and durable. These properties are achieved through the use of specific materials and construction methods.
The basketball's light weight is essential for ease of carrying, shooting, and dribbling. Its round shape ensures a predictable trajectory when bounced, making the game more skill-based and reducing the impact of luck. The ball's elasticity gives it bounce, allowing it to return to the player when dribbled. Lastly, durability is crucial, ensuring the ball can withstand the rigours of a basketball game.
The construction of a basketball involves wrapping a hollow bladder made of butyl rubber with nylon thread. This provides stability and helps create a perfect sphere. The nylon used is specifically nylon 6,6, known for its high tensile strength and lightweight properties. This combination prevents the ball from deforming under stress and tension.
The bladder is then encased in a sleeve, traditionally made of leather. Leather was the material of choice for many years, but in the late 1990s, synthetic composite materials gained popularity and are now used in most leagues. The NBA, however, continues to use real leather game balls.
The surface of the ball is often divided by ribs or panels, which are recessed and generally feature a contrasting colour. An orange surface with black ribs is the traditional colour scheme, but basketballs are sold in various colours. These panels were initially stitched together, but a moulded version was introduced in 1942.
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The tallest player is usually the center
Basketball is a team sport played by two teams, each with five players on the court at a time. Each player is assigned to different positions defined by the strategic role they play. The three main position categories are guard, forward, and
The center (C), also known as the five, the big, or the pivot, is one of the five positions in a regulation basketball game. The center is usually the tallest player on the team and often has a great deal of body mass and strength. In the NBA, the center is typically close to 7 feet (2.13 m) tall, while in the WNBA, centers are usually above 6 feet 4 inches (1.93 m) tall. The tallest center in the WNBA was Margo Dydek of Poland, who stood at 7'2" (1.93 m). In the NBA, the two tallest players in history, Manute Bol and Gheorghe Mureșan, were centers, each standing 7 feet 7 inches (2.31 m) tall.
Centers traditionally play near the baseline or close to the basket (the "low post"), and they usually score "down low" or "in the paint" (near the basket, in the key). They are typically skilled at jump balls, pulling down rebounds, contesting shots, and setting screens on players. The goal of centers is to create possessions and opportunities to score by rebounding and trying to stop the other team from scoring in the paint. Because of their central role in defense, "shots blocked" is an important stat that centers bring to the game.
In the past, players who played as centers were relatively slow and hung out at the basket, but they were much taller than every other player. Over time, the game has become more fast-paced and athletic, calling for less traditional center play and a more up-and-down-the-court play style. In modern times, many teams have won without a strong center, such as those with Michael Jordan. However, a strong center is still a prized position on any basketball team, especially in professional leagues such as the NBA.
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Frequently asked questions
Basketballs are divided into segments by "ribs" that are recessed below the surface of the ball. The number of segments varies depending on the configuration of the ribs.
The "ribs" on a basketball are usually made from leather, rubber, or a synthetic composite material.
The "ribs" on a basketball provide durability and make the ball easier to grip and hold onto.
No, the first basketballs were made from panels of leather stitched together with a rubber bladder inside and did not have "ribs".











































