19 May 1743 May 18, 2022 Author: Staff Jean-Pierre Christin developed the centigrade temperature scale. Famous Words of Inspiration..."A penny saved is a penny earned." Benjamin Franklin — Click here for more from Benjamin Franklin Related posts: 19 May 1743 13 September 1743 16 January 1964 22 April 1809 30 October 1974 29 February 2004 19 October 1987 22 October 1964 20 September 1973 26 December 1898 Categories: History Tags: 1743, 19 May