What is unification of forces ?

Explanation

Physicists are thinking from years that, “Aren.t these forces different forms of any one force ?" These thoughts to unify fundamental forces is called unification.

`to` Newton unified terrestrial and celestial domains under a common law of gravitation.
`to` Oersted and Faraday showed that electric and magnetic phenomena are in general inseparable.
`to` Maxwell unified electromagnetism and optics with the discovery that light is an electromagnetic wave.
`to` Einstein attempted to unify gravity and electromagnetism but could not succeed in this venture.
`to` But this did not deter physicists from zealously pursing the goal of unification of forces.