Faraday's insights into the behavior of magnetic fields would prove invaluable for the development of electromagnetism, in terms of the relations between magnetic and electric fields. In 1865, James Clerk Maxwell compiled all known equations of electromagnetism. Maxwell's equations together led to a wave equation that propagated at the speed of light. Thus explaining electromagnetic radiation in terms of the same electric and magnetic fields. In order to explain this wave phenomena, Maxwell considered a luminiferous aether, a medium tha permeated all space that allowed light to propagate. He wrote