Otto Hahn was a German chemist and Nobel laureate who won the 1944 Nobel Prize in Chemistry for his discovery of nuclear fission. He was born in Frankfurt am Main, Germany in 1879 and studied chemistry at the University of Marburg. He worked as a research chemist at the Kaiser Wilhelm Institute for Chemistry in Berlin-Dahlem from 1912 until his retirement in 1945. His discovery of nuclear fission revolutionized the field of nuclear physics and led to the development of nuclear energy.