Table Tennis, also called Ping-Pong, is similar in principle to lawn tennis and played on a flat table divided into two equal courts by a net fixed across its width at the middle. The object is to hit the ball so that it goes over the net and bounces on the opponent’s half of the table in such a way that the opponent cannot reach it or return it correctly. The lightweight hollow ball is propelled back and forth across the net by small rackets (bats, or paddles) held by 2 or 4 players.
The game was invented in England in the early days of the 20th century and was originally called Ping-Pong, a trade name. The name table tennis was adopted in 1921–22 when the old Ping-Pong Association formed in 1902 was revived. In most countries it is very highly organized as a competitive sport, especially in Europe and Asia.