Albert Einstein was a renowned German-born theoretical physicist. Some of his most important contributions include his special theory of relativity, which reconciled mechanics and electromagnetism, and his general theory of relativity, which revolutionized concepts of space and time. He is best known for his mass-energy equivalence formula E=mc2. Throughout his career, Einstein published over 300 scientific works and more than 150 non-scientific works, received many honors including the Nobel Prize in Physics, and has become synonymous with genius.