World Junior Chess Championship
The World Junior Chess Championship is an under-20 chess tournament (players must have been under 20 years old on 1 January in the year of competition) organized by the World Chess Federation (FIDE). The idea was the brainchild of William Ritson-Morry, who organized the 1951 inaugural event to take place in Birmingham, England.
Source: Wikipedia — World Junior Chess Championship (CC BY-SA 4.0)