Scientist Albert Einstein first presented the theory of relativity before the Prussian Academy of Sciences.Perhaps the most important result of Einstein's theory is that today, thanks to it, we know the components of the universe with great accuracy. We know that the ordinary matter from which everything around us is made is only about 5 percent of the universe, and about 25 percent of it is dark matter. We do not know what it is, but we know its characteristics. The remaining 70 percent of the universe is in the form of dark energy, about which we do not know much except that it drives the universe to accelerate its spread, as does the cosmological constant proposed by Einstein in 1917.This theory also enables us to know the history of the universe and what happened to it in its various stages, from its beginning until now. The most beautiful and profound outcome of the theory of general relativity is that, thanks to Einstein, for the first time in our history as human beings, we scientifically understand the story of our universe.The manuscript of Einstein's theory of relativity sold for a record price of 11 million euros