Original: Max Karl Ernst Ludwig Planck (April 23, 1858 - October 4, 1947) was a German physicist who is regarded as the founder of the quantum theory, for which he received the Nobel Prize in Physics in 1918.
Simplified: Max Karl Ernst Ludwig Planck (April 23, 1858 in Kiel - October 4, 1947 in GÃ ttingen) was a physicist from Germany. He discovered quantum mechanics.