Albert Einstein Elsa to join him as his special guests. Walter Isaacson, Einstein's biographer, described this as "one of the most memorable scenes in the new era of celebrity". Chaplin visited Einstein at his home on a later trip to Berlin, and recalled his "modest little flat" and the piano at which he had begun writing his theory. Chaplin speculated that it was "possibly used as kindling wood by the Nazis." In February 1933 while on a visit to the United States, Einstein knew he could not return to Germany with the rise to power of the Nazis under Germany's new chancellor,
Albert Einstein Archives January 2008. In July of that year, the Archives moved to the Levy Building on the Givat Ram campus. Since March 19, 2012, the Archives have digitized and made available increasingly more of Einstein's works online. Princeton University Press has also been active in this effort. Albert Einstein Archives Albert Einstein Archives refers to an archive on the Givat Ram (Edmond J. Safra) campus of the Hebrew University of Jerusalem in Jerusalem, Israel housing the personal papers of 20th century physicist Albert Einstein. In his will, Albert Einstein left the Hebrew University his personal papers and the copyright to them.