UNIFIED THEORY -- Electromagnetism

For years, physicists have sought and found unified theories.

1861-1865
James Maxwell, in a series of pages, described the interrelation of electric and magnetic fields thereby unifying them into electromagnetism. This led to the now-famous Maxwell's Equations.

1881-1884
Hertz demonstrated radio waves and established that radio waves and light are electromagnetic waves of different frequencies, as predicted by Maxwell's theory.