The Men's 1m Springboard event was contested for the first time at the World Aquatics Championships during the 1991 edition, held in Perth, Western Australia.
The competition was split into two phases, with a preliminary round, where the twelve divers with the highest scores advanced to the final. In the last round divers perform a set of dives to determine the final ranking.
References
Diving at the 1991 World Aquatics Championships – Men's 1 metre springboard Wikipedia(Text) CC BY-SA