Edward Elric, the main protagonist of the anime Fullmetal Alchemist, has been known as a child prodigy for his exceptional knowledge in alchemy, partly due to his witnessing of the Gate.
Alphonse Elric, the protagonists's younger brother, is also a prodigy. Both boys exhibitted exceptional understanding of Alchemical concepts and procedures when they were 6 and 5 respectively.
Edward, at the age of 11, surpassed Alphonse as an Alchemist in that he gained the ability, after witnessing the Gate, to perform Alchemy without the aid of a transmutation circle. He was also the youngest person to pass the State Alchemist exam at that time, five years before he was eligible to apply. Regardless, the brothers' knowledge of Alchemy remained fairly equal throughout the entire series.
Read more about this topic: List Of Fictional Child Prodigies, In TV