Fritz Haber, a German chemist, was born in Breslau, Kingdom of Prussia (now Wrocław, Poland). He is renowned for inventing the Haber process, an industrial method to synthesize ammonia from nitrogen and hydrogen gases, crucial for producing fertilizers and explosives. Haber is also known as the "father of chemical warfare" for his work weaponizing chlorine and other poisonous gases during World War I.

Haber began his studies at the Friedrich Wilhelm University in Berlin (today the Humboldt University of Berlin), with the director of the Institute for Chemistry A. W. Hofmann.

Haber successfully passed his examinations at the St Elizabeth High School in Breslau. He then studied chemistry at the Friedrich Wilhelm University in Berlin, and later at Heidelberg University under Robert Bunsen.

Haber attended the Heidelberg University for the summer semester, where he studied under Robert Bunsen.

Haber was conscripted and left university to perform his one-year volunteer service in the Sixth Field Artillery Regiment.

Haber received his doctorate cum laude from Friedrich Wilhelm University after presenting his work to a board of examiners from the University of Berlin.

Haber worked as an independent assistant to Ludwig Knorr at the University of Jena.

During his time in Jena, Haber converted from Judaism to Lutheranism, possibly in an attempt to improve his chances of getting a better academic or military position.

Haber worked as an independent assistant to Ludwig Knorr at the University of Jena.

Hans Bunte made Haber an Assistent at the University of Karlsruhe.

The university supported Haber in travelling to Silesia, Saxony, and Austria to learn about advances in dye technology.

Haber made a trip to learn about developments in electrochemistry.

Haber's book Grundriss der technischen Elektrochemie auf theoretischer Grundlage (Outline of technical electrochemistry based on theoretical foundations) attracted considerable attention, particularly his work on the reduction of nitrobenzene.

Haber was invested with the title of Extraordinarius and an associate professorship by order of the Grand Duke Friedrich von Baden.

Hans Luggin, who gave theoretical lectures in electrochemistry and physical chemistry, died.

Haber married Clara Immerwahr, who was the first woman to earn a PhD in chemistry at the University of Breslau.

Haber and Clara Immerwahr's son, Hermann, was born.

Haber published his second book, Thermodynamik technischer Gasreaktionen: sieben Vorlesungen (Thermodynamics of technical gas-reactions: seven lectures), later regarded as "a model of accuracy and critical insight" in the field of chemical thermodynamics.

The Ministry of Education in Baden offered the full professorship for physical chemistry at Karlsruhe to Haber, who accepted the offer.

During his time at University of Karlsruhe, Haber and his assistant Robert Le Rossignol invented the Haber–Bosch process, which is the catalytic formation of ammonia from hydrogen and atmospheric nitrogen under conditions of high temperature and pressure.

Haber partnered with Carl Bosch at BASF, and the Haber process was successfully scaled up to produce commercial quantities of ammonia.

Anton Köllisch first synthesized MDMA.

Haber was promoted to the rank of captain and made head of the Chemistry Section in the Ministry of War soon after the war began. He played a major role in the development of the non-ballistic use of chemical warfare in World War I.

Haber joined 92 other German intellectuals in signing the Manifesto of the Ninety-Three.

Haber was on hand personally when chlorine gas was first released by the German military at the Second Battle of Ypres in Belgium.

Clara Haber died of suicide in their garden by shooting herself in the heart with Haber's service revolver.

Haber married his second wife, Charlotte Nathan, in Berlin.

Haber was awarded the 1918 Nobel Prize in Chemistry for the invention of the Haber-Bosch process.

From 1919 to 1923 Haber continued to be involved in Germany's secret development of chemical weapons, working with Hugo Stoltzenberg, and helping both Spain and Russia in the development of chemical gases.

From 1919 to 1925, Hoshi Hajime donated two million Reichsmark to the Kaiser Wilhelm Society as the 'Japan Fund' (Hoshi-Ausschuss). Haber was asked to manage the fund.

Scientists working at Haber's institute developed the cyanide gas formulation Zyklon A, which was used as an insecticide, especially as a fumigant in grain stores.

Haber was invited by Hoshi to Japan.

From 1919 to 1925, Hoshi Hajime donated two million Reichsmark to the Kaiser Wilhelm Society as the 'Japan Fund' (Hoshi-Ausschuss). Haber was asked to manage the fund.

Haber and Charlotte Nathan were divorced.

Haber was increasingly concerned about the rise of National Socialism in Germany, and the possible safety of his friends, associates, and family.

Haber and his son Hermann urged that Haber's children by Charlotte Nathan, at boarding school in Germany, should leave the country.

Chaim Weizmann offered Haber the directorship at the Sieff Research Institute (now the Weizmann Institute) in Rehovot, in Mandatory Palestine. He accepted.

Under the Law for the Restoration of the Professional Civil Service, Jewish scientists at the Kaiser Wilhelm Society were particularly targeted.

Haber resigned as the director of the Kaiser Wilhelm Institute, and as a professor at the university.

Haber left Dahlem, staying briefly in Paris, Spain, and Switzerland.

Haber left for the Middle East, travelling with his half-sister, Else Haber Freyhahn.

Haber died of heart failure in a Basel hotel.

Haber was cremated and buried in Basel's Hörnli Cemetery, and Clara's remains were removed from Dahlem and re-interred with him.