

An 18th-century German mathematician who, through sharp wit and textbooks, taught a nation and skewered his rivals with memorable epigrams.
Abraham Kästner presided over the University of Göttingen's mathematics department for over four decades, a period when the field was undergoing profound change. While not a revolutionary theorist himself, his true impact lay in synthesis and teaching. He authored a monumental, multi-volume history of mathematics and comprehensive textbooks that educated generations of German scientists and thinkers. His clear, methodical writing helped standardize mathematical instruction. Kästner was equally famous for his biting, satirical epigrams, which he published to great popularity. This combination—the serious academic and the sharp-tongued poet—made him a unique public intellectual, respected for his knowledge and feared for his pen, shaping both the curriculum and the cultural conversation around science.
The biggest hits of 1719
The world at every milestone
The poet and scientist Georg Christoph Lichtenberg was one of his most famous students.
A lunar crater is named after him.
He initially studied law and philosophy before turning fully to mathematics.
“Mathematics is the science which draws necessary conclusions.”