I am Albert Einstein. I was born on March 14, 1879, I am a Theoretical physicist a leading figure in the World Government Movement after WW2 Best known for developing the theory of relativity, I also made important contributions to quantum mechanics, and was thus a central figure in the revolutionary reshaping of the scientific understanding of nature that modern physics accomplished in the first decades of the twentieth century.[1][5] my mass–energy equivalence formula E = mc2, which arises from relativity theory, has been called "the world's most famous equation".[6] I received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for my discovery of the law of the photoelectric effect",[7] a pivotal step in the development of quantum theory. My work is also known for its influence on the philosophy of science.[8][9] In a 1999 poll of 130 leading physicists worldwide by the British journal Physics World, Einstein was ranked the greatest physicist of all time.[10] I intellectual achievements and originality have made the word Einstein broadly synonymous with genius.[11]