Basketball is a ball game in which two teams participate. Each team has five players. The purpose is to throw the ball into the opponent's basket to score, to prevent the opponent from getting the ball or scoring. You can pass, throw, hit, roll or dribble in any direction, but it is limited by the rules. There are various forms of basketball games, and the most popular street three-person basketball game is a three-on-three game, which pays more attention to personal skills. The highest level of basketball in the world today is the National Basketball Association (NBA) of the United States. Basketball was listed as an Olympic performance in 1904, and became an official event of the Berlin Olympic Games in 1936. The women's basketball didn't become a competition until 1976 Montreal Olympic Games.

Basketball is one of the antagonistic sports centered on shooting, which was created by Dr. james naismith, a teacher at the YMCA Training School in Field, Massachusetts, USA, on 189 1 (another way of saying it is 189 1). He is not reforming a sport, but inventing a sport. He just wanted to invent an indoor sport for the students of the YMCA training college, and his invention caused a positive response. At first, he nailed two baskets of peaches at both ends of the stands upstairs in the school gymnasium, used football as a game tool and threw the peaches into the baskets. Later, it was changed into a hoop and hung on the Internet. Later, the net was cut open and made into this basket today. In order to improve the basketball game, he formulated the 13 rule in 1892, and then gradually revised and added the terms, and the number of people gradually decreased until each team required five people, which became a modern basketball sport. Basketball has a volume of 7800ml and a diameter of 24.62cm.

Basketball rules formulated by naismith ① Basketball is played by hand and the ball is round; ② Walking or running with the ball in hand is not allowed; (3) Athletes can go anywhere on the field as long as it does not affect or hinder other athletes; ④ Physical contact between athletes is not allowed; ⑤ The hoop should be horizontal. According to these five basic principles, Mr. naismith made the most primitive rules of basketball match. There are 13 original basketball competition rules. The basic content of this article 13 is: 1. Players can throw the ball in any direction with one hand or both hands. 2. Players can catch the ball in any direction with one hand or both hands, but they must never hit the ball with their fists. Players can't take the ball away. You must hold the ball with your hand, but you are not allowed to kick the ball with your head and feet. 5. Players are not allowed to use shoulder bump, hand pull, hand push, hand bump, foot trip and other methods to deal with opposing players. Any player who violates this rule is regarded as the first foul and will be forced to stop playing until he hits the target. If you intentionally hurt the opposing player, you will be disqualified from participating in the whole game and will not be allowed to substitute. 6. It is against rules 3 and 4 to hit the ball with fists. 7. If either side fouls three times in a row, it is counted as the other side's goal. Continuous foul refers to: during a period of time, the opposing team members did not foul, while their own team members fouled continuously. 8. If the defender doesn't touch or interfere with the ball, when the ball is thrown into the basket and stays in it, it is considered a basket. If the ball stops at the basket and the other team touches the basket, it is also a fortune teller. 9. When the ball is out of bounds, the ball will be thrown into the field by the first person who touches it. If there is an argument, the referee will throw the ball into the field. Throw a foul ball for five seconds. After more than 5 seconds, the ball was awarded to the opponent. 10. The referee is the referee of the player, and he has the right to call a foul. However, if the referee blocks any team, his license will be revoked. When a team fouls three times in a row, he will notify the assistant referee. He has the right to declare an athlete disqualified. 1 1. The assistant referee is the referee of the player. He can decide the time of the ball in the game, he should calculate the time, decide the hitting of the ball, record the hitting times of the ball, and bear the responsibility that the referee should bear at ordinary times. 12. The game will be played in two 15 minutes with a 5-minute break. 13. The team that hits the ball the most wins. If there is a draw, with the consent of both captains, the game can be postponed until another goal is scored. Although the original 13 basketball competition rules are not systematic and complete, and some terms are not clear enough, they have played a great role in promoting the development of basketball in the early stage. Especially, basketball has developed into a modern basketball sport today, with higher technical and tactical level and more important rules. It requires strict, scientific and systematic management of basketball competition rules.

Edit this paragraph rule evolution

The modification of rules promotes the development of basketball, and the continuous improvement of basketball skills and tactics promotes the appropriate modification or supplement of imperfect rules, thus making basketball develop in a healthy and advanced direction. Rules and basketball skills and tactics, like productivity and relations of production, are complementary, interdependent and mutually reinforcing. By affirming, denying, allowing or not allowing, the rules ensure the normal progress of basketball games and promote the healthy development of basketball. The action that conforms to the rules of the field is the correct action, and vice versa. The rules have developed from the initial 13 to the present 58, and the basketball skills and tactics have developed from the initial simple low level to the present high level, which is the result of their mutual restriction and promotion for many years. For example, the development of dribbling technology from the initial elbow joint as the axis to the current shoulder joint as the axis is precisely the result of the constant affirmation of the developing technology by the rules. Now the rules clearly point out that the symbol of the end of dribbling is the moment when both hands touch the ball or dribble with the palm up, and the thumb exceeds the vertical plane to end the dribbling. If the palm of your hand is always down and your thumb is not above the vertical plane, it is impossible to keep the ball in your hand. Therefore, the modern technology of arm dribbling with shoulder joint as the axis and one-handed back-pulling and back-turning dribbling has been affirmed in legal form. Another example: the development of shooting techniques, from the initial in-situ two-handed chest shooting to top-down dunk, one-handed or two-handed basketball and other superb techniques, the rules clearly stipulate that all players are shooting. Therefore, modern technologies such as dunk and makeup have developed rapidly. In recent years, there have been many techniques in the competition, such as back jump shot, back jump shot and hook jump shot, which are also determined by the basic principles of dealing with physical contact and foul, such as vertical plane principle and flying man principle. When dealing with fouls, the guiding ideology of offensive and defensive balance is particularly emphasized, forcing and promoting shooters to adopt various forms of jump shot techniques, get rid of defense and avoid hitting people because of fouls, so as to achieve the goal of scoring and promote the continuous development of defensive tactics. Under normal circumstances, FIBA will revise and supplement the rules every four years, with the purpose of promoting the further development of basketball skills and tactics, limiting rude movements and making the game develop in a civilized, clean, intense and hard-working direction. The change of rules is unknowable, and no one can change it at will on a whim. It is carried out according to a certain review purpose. The specific guiding principle for modifying the rules is: 1. Fair. This is the basis for modifying the rules. Rules should be fair to both sides of the game. Because the basketball game is a contest of basketball consciousness, skills and tactics and physical quality between the two sides under the same conditions of time, space, venue and number of people. 2. Balance. Balance (or balance) means that both offense and defense must be balanced. If a game is easy to score or difficult to score, it will make the game dull and not exciting, then the wonderful charm of the basketball game will be lost. 3. Define the meaning. The definition of rules should be concise and accurate. 4. compile. Rules should be compiled, avoid duplication, be consistent and not contradictory. 5. Keep it short. The rules should be short and to the point, and avoid verbosity that makes people difficult to understand. 6. Outside the case. There are many rules in front of the rules. If there are no exceptions (that is, comments), it is difficult to enforce the rules. The exception is to ensure the implementation of positive law. 7. Safety. Rules should ensure personal safety and the smooth running of the competition in a good environment and atmosphere. 8. power. The referee must be given the power to execute the rules competently and authoritatively in the competition. 9. Continuation. The rules should minimize the number of interruptions of the game, so as to ensure the continuity of the game and make the game more compact and exciting. 10. No profit. Rules should make no one in the game benefit from violating the rules, so that the game can be played fairly and reasonably.