10 years old
A referee usually controls a football match
Konishi of Japan is the youngest person to have won a professional tournament, being 8 years and 7 months old when she achieved this feat.
The youngest person would constantly be changing as it would be the newest born person.
Linoel Messi started his career in 2004 and set a record for the youngest person to play on his team.
The youngest person to win a world billiards championship was not 24, but wsa 17. Wu Chia-Ching was 17 when he won the WPA World Nine Ball Championship - this was a professional match.
When you see FBEng after a person's name, it signifies that person is a Fellow of the Association of Building Engineers. It's a professional title.
The youngest person to give birth is Lina Medina.
Yes, she is the youngest.
Pat Fitzgerald is the youngest person to ever become a head coach in NCAA Division 1-A history. He was just 31 when he became the head coach of the Northwestern Wildcats football team in 2006.
King tut was the youngest :)
Youngest brownlow winner
History has recorded that William Heffelfinger was the first person to be paid for playing football, receiving $500 for playing a game for the Allegheny Athletic Association against the Pittsburgh Athletic Club on November 12, 1892.