It is claimed that he had mastered the calculus before the age of twelve. Fefferman entered the University of Maryland when he was very young and in 1966, at the age of 17, he graduated with the highest distinction.
Ito ay inaangkin na niya mastered ang calculus bago ang edad ng alas-dose. Fefferman ipinasok sa University of Maryland kapag siya ay napakabata at sa 1966, sa edad na 17, siya ay nagtapos na may pinakamataas na pagkilala.