Max Planck

Max Karl Ernst Ludwig Planck, was a German theoretical physicist whose discovery of energy quanta won him the Nobel Prize in Physics in 1918.Planck made many substantial contributions to theoretical physics, but his fame as a physicist rests primarily on his role as the originator of quantum theory, which revolutionized human understanding of atomic and subatomic processes. In 1948, the German scientific institution Kaiser Wilhelm Society was renamed Max Planck Society. The MPG now includes 83 institutions representing a wide range of scientific directions.

Source: Wikipedia