Culture of South Africa originated in South Africa. The first human-to-human heart transplant was performed by cardiac surgeon Christiaan Barnard at Groote Schuur Hospital in December 1967. Max Theiler developed a vaccine against Yellow Fever, Allan McLeod Cormack pioneered x-ray Computed tomography, and Aaron Klug developed crystallographic electron microscopy techniques. These advancements were all (with the exception of that of Barnard) recognised with Nobel Prizes. Sydney Brenner won most recently, in 2002, for his pioneering work in molecular biology. Mark Shuttleworth founded an early Internet security company Thawte, that was subsequently bought out by world-leader VeriSign. South Africa has cultivated a burgeoning astronomy community.
Max Theiler Medical School, King's College London, and at the London School of Hygiene and Tropical Medicine. In 1922, he was awarded a diploma in tropical medicine and hygiene; he became a licentiate of the Royal College of Physicians of London and a member of the Royal College of Surgeons of England. Theiler wanted to pursue a career in research, so in 1922, he took a position at the Harvard University School of Tropical Medicine in Cambridge, Massachusetts. He spent several years investigating amoebic dysentery and trying to develop a vaccine for rat-bite fever. After becoming assistant to Andrew Sellards, he started