Conversation so far:
who is the world heavyweight champion of wwe
December 15, 2013, when WWE Champion Randy Orton defeated John Cena, the World Heavyweight Championship was unified with the WWE Championship, and Orton became the WWE World Heavyweight Champion
when did randy orton make his wrestling debut
Randy Orton made his wrestling debut in 2000 at the Mid-Missouri Wrestling Association-Southern Illinois Conference Wrestling

Question: at what age did randy become the youngest champion
Self-contained rewrite: at what age did randy orton become the youngest world champion in wwe history