Fritz Haber was a German chemist who won the 1918 Nobel Prize in Chemistry for the synthesis of ammonia from its elements. He born into a well-established Jewish family in Breslau; his father owned a prosperous chemical business. After receiving his PhD from Friedrich Wilhelm University, Fritz Haber first decided to join his father’s business; but later changed his mind and joined University of Jenna. While working as an independent assistant at Jena he converted to Lutheranism. Later, he shifted first to University of Karlsruhe and then to Kaiser Wilhelm Institute for Physical Chemistry and Electrochemistry at Berlin-Dahlem. At Karlsruhe, he worked on different projects and made major contributions in the field of chemistry. His work on synthesizing of ammonia for use in the fertilizer and explosive industries is one of his most significant discoveries. It not only earned him fame, but also the Nobel Prize in 1918. However, his invention of chemical weapon during the World War I made him equally unpopular. However, he defended his action by saying that death was death; it did not matter how it happened. He also declared that during peace the scientists belonged to the world, but during the war, they belonged only to their own country.