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Some experts believe that tennis was first an Egyptian sport, because the word racket is very similar to the Arabic word rahat (hands). Other people believe that it was invented by the French in the eleventh or twelfth century. By the thirteenth century, there were as many as 1,800 indoor courts, so people didn't have to wait for good weather in order to play. In those days, players had to hit the ball with their hands. By 1500, the game was played with a wooden racket. The very first tennis balls were made from leather filled with horse hair or wool. Today, tennis balls are rubber and have to measure 6.54-7.3 centimetres across the middle and weigh 56-59.49 grams.

There is belief from some experts that tennis actually originated from Egypt due to the fact that "racket" used in tennis is similar to "rahat", an Arabic. But some believe that it was invented by the French. Players that played tennis in the thirteenth century used their hands but in 1500 it was played with wooden racket. Tennis balls are made are made of rubber today.

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