January 24, 1776

A summary of the significance of E. T. A. Hoffmann (January 24, 1776 to June 25, 1822) states it was Hoffman:

'who first explored many of the themes and techniques which were later used by writers from Dickens to Dostoyevsky, Poe to Kafka, Baudelaire to Marquez. His career reached a glorious climax in The Tomcat Murr, perhaps the strangest novel of the nineteenth century... "Hoffmann was a follower of Cervantes and Sterne, a pioneering 'magic realist', fascinated by Gothic horror, extreme mental states and supernatural events occurring within sharply (and sometimes satirically) rendered social settings. A talented composer and painter, he portrayed himself in the guise of Johannes Kreisler - the hypochondriac, antisocial and moody but brilliant musician. In this astonishing book, a vain and very bourgeois tomcat sets out to write his memoirs, using a biography of Kreisler as a blotting pad. By a printer's error, the two lives get spliced together into a bizarre double narrative. A supreme example of literary bravado, The Tomcat Murr is also shot through with the warmth, humanity and almost uncanny ability to captivate his readers which make Hoffmann the greatest of German story-tellers.'

Lebensansichten des Katers Murr (1820): The Life and Views of Tomcat Murr, is available free in an English version here.  There is also at that link a long biographical summary.