Tennis

tennis is a beautiful and intense exercise, the origin and development of tennis can be summarized in four points: birth in France, was born in England, began to spread and reach a peak in the United States, is now popular around the world, known as the world two big ball games.
Modern tennis generally include indoor tennis and outdoor tennis in two forms. Tennis originated in France in the 12th to the 13th century cloister in the church missionaries in a game hit the ball with the palm. Became a court room entertainment activities. Also suggested that the origin should be traced back to tennis, "the Hundred Years War" (1337 ~ 1453 war between Britain and France) before the French people spread the ball game a Rye. It is said that this game is conducted in two people, each armed with a racket, golf course built around a wall, the ball hit the wall after a bounce back, and then over the net. Therefore, whether from the use of space and equipment, or from the methods of the game, it there are many similarities between the modern tennis, so some people see it as the original form of tennis. Tennis in diameter between 6.541 and 6.858 cm. At first, tennis, just two hemispheres filled grass, leaves or made of hair, etc., and later with the continuous development of tennis, making the ball more and more stress.