When did Einstein come up with the theory of special relativity?

When did Einstein come up with the theory of special relativity?

It was pondering these developments that led Einstein to discover the special theory of relativity in 1905. The discovery was not momentary. The theory was the outcome of, in Einstein’s own reckoning, seven and more years of work.

How was special relativity derived?

Special theory of relativity (STR) is a well-established theory. Its kinematics and basic properties were derived by A. Einstein in 1905 from the principle of relativity (the principle that all inertial reference frames (IRFs) are equivalent and that the speed of light is the same in all such frames).

What proved that Einstein general theory of relativity was accurate?

Bottom line: The solar eclipse of May 29, 1919, was the day astronomer Sir Arthur Eddington verified Einstein’s general theory of relativity, by observing how stars near the sun were displaced from their normal positions.