* Records are not consistently kept: Records of exceptionally young high school graduates aren't always meticulously tracked or verified across different countries and time periods.
* Definition of "high school" varies: The age at which someone graduates depends on the educational system and the specific curriculum they follow. Some accelerated programs exist that allow for earlier graduation than traditional programs.
* Verification challenges: Claims of exceptionally early graduation often lack sufficient documentation to verify their accuracy.
While many prodigies have graduated at remarkably young ages, pinpointing the absolute youngest is impossible due to the factors listed above. Numerous news articles cite individuals graduating in their early teens, but none are universally accepted as the youngest ever.