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 termed ; by November 1709, the German name had been used for the first time by Frisch. Frisch himself is the author of the first known publication of Prussian blue in the paper in 1710, as can be deduced from his letters. Diesbach had been working for Frisch since about 1701.