Edison didn’t just invent at Menlo Park – he had been inventing for years before and went on to invent for years after he left.  But while living there, he invented the phonograph and incandescent light – two modern miracles earning him the nickname “The Wizard of Menlo Park.”   The lab at Menlo Park was a collaborative atmosphere, allowing Edison to develop a systemized research for industrial applications.  This working environment led to what is now the modern day Research & Development lab!