- Art Gallery -


  Hellenica World

Science Art


Posthumous publication of the book Ortus medicinae by Jan Baptist van Helmont, which is cited by some as a major transitional work between alchemy and chemistry, and as an important influence on Robert Boyle. The book contains the results of numerous experiments and establishes an early version of the Law of conservation of mass

Hydrochloric acid discovered by Johann Rudolf Glauber


1647 - 1648 - 1649