Conference from 10:30 to 12:00, led by Arnaud Hosse amateur historian. From the origins to Our 21st century, alchemy is very present, whether as a literary or statuary reference, even cinema has taken hold of the myth ... But is it a myth or is there a background of truth? This is what I invite you to discover through a history of this centuries-old science, accompanied by many historical anecdotes. A brief overview to shed some light on a little-known science. Free participation.