Publication of Mercury Thermometer

Date: May 19, 1743 • Location: Paris, France

French physicist Jean-Pierre Christin published the design of a mercury thermometer using the centigrade scale, with 0 representing the melting point of water and 100 its boiling point.

Jean-Pierre Christin was a French physicist, mathematician, astronomer, and musician. His proposal in 1743 to reverse the Celsius thermometer scale was widely accepted and is still in use today.