Tennis, also called field tennis, is a racket sport practiced on a rectangular track (composed of different surfaces which can be cement, earth, or grass), delimited by lines and divided by a net. players (singles) or between two couples (doubles). The objective of the game is to throw a ball hitting it with the racket so that it bounces on the other court by passing the net within the allowed limits of the opponent's field, ensuring that it cannot return it to get a second rebound on the ground and therefore a point.
The first references of tennis take place in France, named "jeu de paume" (‘game of palms’) since at first the ball was hit with the hand. Later they started using rackets.
The original tennis was played on natural grass courts.
It originated in Europe at the end of the 18th century  and was initially expanded by English-speaking countries, especially among its upper classes. Currently, tennis has become universal, and is played in almost every country in the world. Since 1926, with the creation of the first tour, it is a professional sport. It is also an Olympic sport since the 1896 Athens Olympic Games.