The Albert Einstein Professorship in Science is an endowed professorship in physics established at Princeton University in 1974 by a donation from the International Business Machine Corporation (IBM). Albert Einstein was never on the faculty of Princeton University, although in the early 1930s he did occupy an office in Princeton University's mathematics building (the old Fine Hall), while he was waiting for the Institute for Advanced Study to be built. Einstein was given a corner office in the old Fine Hall, which served as the temporary headquarters of the Institute for Advanced Study. Princeton University's Albert Einstein Professorship in Science should not be confused with various other Einstein professorships, such as Stony Brook University's Albert Einstein Professorship of Physics, which was held by C. N. Yang (who is now Professor Emeritus).