
A brilliant chemist who became the first German woman to earn a PhD in her field, her tragic death was a silent protest against the weaponization of science.
Clara Immerwahr earned her doctorate magna cum laude from the University of Breslau in 1900 after fighting for the right to sit for the exams. She married chemist Fritz Haber, a union that became a cage as he developed chemical weapons for Germany during World War I. Immerwahr saw the perversion of chemistry for mass slaughter as a betrayal of science's purpose to improve life. The night after Haber celebrated the first successful use of chlorine gas at Ypres in 1915, she took his service revolver and shot herself in their garden. Her suicide was a protest against the moral compromises of war.
1860–1882
Born during or after the Civil War, they built industrial America — the railroads, the steel mills, the first skyscrapers. An era of massive wealth, massive inequality, and the belief that the future belonged to whoever could build it fastest.
Clara was born in 1870, placing them squarely in The Gilded Age. The events that shaped this generation — world wars, depression, and rapid industrialization — shaped the world they entered and the choices available to them.
The biggest hits of 1870
The world at every milestone
Statue of Liberty dedicated in New York Harbor
Boxer Rebellion in China
Halley's Comet makes its closest approach
The Lusitania is sunk by a German U-boat
Her doctoral dissertation was on the solubility of metal salts, a topic in physical chemistry.
She was a skilled translator, rendering scientific papers from English into German for her husband early in their marriage.
She gave popular science lectures specifically for women, a radical act of public engagement at the time.
The exact location of her grave in Berlin is unknown, as the cemetery was destroyed during World War II.
“A life devoted to science must also be a life devoted to conscience.”