The theory of relativity was produced in 1905 by:

Explanation

Albert Einstein, a German physicist, introduced the theory of relativity in two parts: the special theory of relativity in 1905 and the general theory of relativity in 1915. The special theory of relativity, encapsulated in the famous equation E=mc², revolutionized our understanding of space, time, and energy. The general theory of relativity extended these ideas to include gravity and described it as the curvature of spacetime caused by mass and energy.