When were table tennis balls invented?

Answer 1

Table Tennis originated as a sport in Britain during the 1880s, where it was played among the upper class as an after dinner game.

Therefore the balls would have been invented around the same time.

James Gibb was the first person to use celluloid balls in 1901.

Answer 2

The International Table Tennis Federation was formed in 1926 and they produced the first official rules of table tennis.

Answer 3

1926.

In England the "Table Tennis Association" started in 1922 (later adding the prefix "English") but in December 1926 the "International Table Tennis Federation" was formed.