The death of Fritz Haber (German chemist and Nobel laureate) on January 29 marks an event from the year 1934. Fritz Haber was a prominent figure in twentieth-century chemistry, best known for developing the process of synthesizing ammonia from nitrogen and hydrogen. This method, known as the Haber-Bosch process, enabled the large-scale production of chemical fertilizers and had a significant impact on increasing global food production. Haber received the Nobel Prize in Chemistry in 1918 for his achievements in ammonia synthesis. However, his involvement in military chemistry and the development of chemical weapons during World War I has been the subject of ongoing debate and criticism. Throughout his career, Haber was influential in both scientific and industrial fields, and his work continues to shape the chemical and agricultural industries today. Haber died at the age of 65 in Basel, Switzerland. This observance was added to the Gregorian calendar to recognize the historical and scientific significance of Fritz Haber's contributions and the far-reaching effects of his achievements.