Johann Leonhard Frisch [SEP] date of birth
Johann Leonhard Frisch
Johann Leonhard Frisch (19 March 1666 – 21 March 1743) was a German linguist, entomologist and ornithologist.
External links.
- Gaedike, R.; Groll, E. K. & Taeger, A. 2012: Bibliography of the entomological literature from the beginning until 1863 : online database - version 1.0 - Senckenberg Deutsches Entomologisches Institut.
a very distinct blue hue. It was named and in 1709 by its first trader. 
The pigment replaced the expensive lapis lazuli and was an important topic in the letters exchanged between Johann Leonhard Frisch and the president of the Prussian Academy of Sciences, Gottfried Wilhelm Leibniz, between 1708 and 1716. It is first mentioned in a letter written by Frisch to Leibniz, from March 31, 1708. Not later than 1708, Frisch began to promote and sell the pigment across Europe. By August 1709, the pigment had been