Relativity may refer to: Physics Special relativity, a theory of physics formulated by Albert Einstein General relativity, Einstein's theory of gravitation Albert Einstein's theory of relativity, which refers to both special relativity and general relativity together Principle of relativity, used in Einstein's theories and derived from Galileo's principle Galilean relativity, Galileo's conception of relativity Numerical relativity, a subfield of computational physics that aims to establish… (More on Relativity)