August Schleicher
A linguist who treated language like a living organism, he drew its first evolutionary tree and tried to resurrect the sound of prehistoric speech.
1821–1868 (age 47)·German philologist·Birthday: February 19
Biography
August Schleicher brought a biologist's rigor to the study of words. Working in the 19th century, he was gripped by the new ideas of Darwin and saw languages not as static systems, but as entities that evolved, branched, and sometimes died out. His most enduring visual contribution was the Stammbaumtheorie, or family tree model, which mapped the descent of Indo-European languages from a common ancestor. He took the daring step of trying to reconstruct that ancestor, Proto-Indo-European, not just in theory but in practice. To prove it could be spoken, he composed 'The Sheep and the Horses,' a short fable using his reconstructed vocabulary and grammar. Though later scholars revised his methods, Schleicher's work established historical linguistics as a proper science with rules of change as predictable as laws of nature.
#1 When August Was Born
The biggest hits of 1821
August's Life & Times
The world at every milestone
1821Born
1826Started school
1834Became a teenager
1837Could drive
1839Could vote
1842Turned 21
1851Turned 30
1861Turned 40
President: Abraham Lincoln
1868Died at 47
President: Andrew Johnson
Key Achievements
- Devised the Stammbaumtheorie (family-tree model) to illustrate the historical relationships between Indo-European languages.
- Wrote 'A Compendium of the Comparative Grammar of the Indo-European Languages,' a systematic synthesis of the field.
- Created 'Schleicher's Fable,' a short text in reconstructed Proto-Indo-European to demonstrate its plausibility.
- Applied a rigorous, almost scientific, methodology to linguistic comparison, emphasizing regular sound laws.
Did You Know?
He was an accomplished botanist and maintained a deep interest in the natural sciences throughout his life.
Schleicher learned Lithuanian, then considered a very conservative Indo-European language, directly from native speakers to aid his research.
His fable is still used today in linguistics courses to teach students about Proto-Indo-European reconstruction.
He held professorships at the University of Prague and the University of Jena.
“The life of language has a twofold aspect: it is at once a living activity and a product of that activity.”
