The History of Radio (Part I)

In the late 19th century it was clear to various scientists and experimenters
that wireless communication was possible.  Various theoretical and
experimental innovations led to the development of radio and the communication
system we know today.  Some early work was done by local effects and
experiments of electromagnetic induction.  Many undeerstood that there was
nothing similar to the "ethereal telegraphy" and telegraphy by induction;
the phenomena being wholly distinct.  Wireless telegraphy was beginning to
take hold and the practice of transmitting messages without wires was being
developed.  Many people worked on developing the devices and improvements.