Wolfgang Ernst Pauli was an Austrian theoretical physicist and a pioneer of quantum mechanics. In 1945, after having been nominated by Albert Einstein, Pauli received the Nobel Prize in Physics "for the discovery of the Exclusion Principle, also called the Pauli Principle". The discovery involved spin theory, which is the basis of a theory of the structure of matter. The Nobel Prize in Physics 1945, announced November 15, 1945. Wolfgang Pauli, “for the discovery of the Exclusion Principle, also called the Pauli Principle”. Wolfgang Pauli: born 1900, Vienna, Austria. Wiki link Data: the Nobel Foundation (CC0).