The International Commission on Illumination (usually known as the CIE for its French language name Commission Internationale de l'Eclairage) is the international authority on light, illumination[?], color, and color spaces.
... 22 - Robert Oppenheimer, physicist (+ 1967)
May 6 - Harry Martinson, swedish author, winner of the Nobel Prize in literature
May 11 - Salvador Dalí, artist
May 17 ...