James C. Maxwell Quotes
We can scarcely avoid the inference that light consists in the transverse undulations of the same medium which is the cause of electric and magnetic phenomena.
Maxwell, James Clerk. "On Physical Lines of Force." The Scientific Papers of James Clerk Maxwell, edited by W. D. Niven, vol. 1, Cambridge University Press, 1890, p. 500.
For historians, this is a difficult concept to comprehend, but with the passage of time, Feynman may well be right.
James Clerk Maxwell FRSE FRS was a Scottish scientist in the field of mathematical physics. His most notable achievement was to formulate the classical theory of electromagnetic radiation, bringing together for the first time electricity, magnetism, and light as different manifestations of the same phenomenon. Maxwell's equations for electromagnetism have been called the "second great unification in physics" where the first one had been realised by Isaac Newton.