Table tennis, originally called ping pong, is a sport played with paddles and a lightweight ball on a table divided by a net. It was initially an after-dinner amusement for British officers in the 1800s. The game requires remarkable hand-eye coordination and concentration from players to precisely place fast-moving balls. Key skills and strokes in table tennis include forehand and backhand topspin, push, block, and smash shots as well as accurate serving. Proper grip technique and positioning are important for controlling ball speed, spin, angle, and depth. International competitions and Olympic table tennis have been held since the 1920s.