When did the winning score in table tennis change from 21 to 11?

Answer 1

From 1926 until 2001 a Table Tennis game was played up to 21 points.

But in order to make the game more exciting, have more "crucial" points, and to make it more appealing to television viewers, the rules of table tennis were changed with effect from September 2001.

A game of table tennis is now played up to 11 points. The winner is the player or pair who first scores 11 points, unless both players or pairs score 10 points (called deuce). Then a game will be won by the first player or pair to gain a two point lead..