Question: What is the birth date of this English scientist, whose laboratory burner design was later perfected by Peter Desaga into the Bunsen burner?
Related documents: [0]  [DOC] Peter Desaga was a German instrument maker at the University of Heidelberg who worked with Robert Wilhelm Bunsen. In 1855, Desaga perfected an earlier design of the laboratory burner by Michael Faraday into the Bunsen burner. The Desaga family held the right to market the burner for generations, as part of an agreement made with Bunsen. The Bunsen burner was essential to the invention of the spectroscope by Robert Wilhelm Bunsen and Gustav Robert Georg Kirchhoff. [END] 
[1]  [DOC] Michael Faraday FRS ( ; 22 September 1791 – 25 August 1867) was an English scientist who contributed to the study of electromagnetism and electrochemistry. His main discoveries include the principles underlying electromagnetic induction, diamagnetism and electrolysis. [END] 
Answer: 
22 September 1791
22 September 1791