WHICH theory of relativity?
Spec Rel works perfectly fine, and that is the one you've quoted before.
People, do NOT underestimate Einstein.
The Photoelectric effect (explanation of) was his doing. This is a prerequisite for Quantum Physics.
Special Relativity is one of the most elegent physical theories in history.
General Relativity is a masterwork, which has been proven to be empirically correct on every level except the quantum one, and nearly ALL researches into a Grand Unified Theory are assuming that the flaw lies with the Standard Model of Quantum Mechanics, not with General Relativity.
Oh, he also predicted the Einstein-Bose condensates and won the nobel prize.
He's not the 'cleverest man ever' as some people seem to postulate. He did however create some of the most important theories in the history of physics.
Whilst Bohr made important contributions, his achievements are little compared to the above.