Stephen Wolfram's parents were Jewish refugees who emigrated from Germany to England in the 1930s. Wolfram's father Hugo was a textile manufacturer and novelist (Into a Neutral Country) and his mother Sybil was a professor of philosophy at the University of Oxford. He has a younger brother, Conrad. Wolfram is married to a mathematician and has four children.He was educated at Eton College, but claimed to be bored and left it prematurely in 1976. He entered St John's College, Oxford at age 17 but found lectures "awful", and left in 1978 without graduating. He received a Ph.D. in particle physics from the California Institute of Technology at age 20, joined the faculty there and received one of the first MacArthur awards in 1981, at age 21.Wolfram presented a talk at the TED conference in 2010, and he was named Speaker of the Event for his 2012 talk at SXSW. In 2012 he became a fellow of the American Mathematical Society.