In the aftermath of the bombing of Hiroshima, Meitner became a celebrity. She had a radio interview with Eleanor Roosevelt, and a few days later another one with a radio station in New York, during which she heard her sister Frida's voice for the first time in years. "I am of Jewish descent", she told Frida, "I am not Jewish by belief, know nothing of the history of Judaism, and do not feel closer to Jews than to other people." On 25 January 1946, Meitner arrived in New York, where she was greeted by her sisters Lola and Frida, and by Frisch, who had made the two-day train trip from Los Alamos. Lola's husband Rudolf Allers arranged a visiting professorship for Meitner at the Catholic University of America. Meitner lectured at Princeton University, Harvard University and Columbia University, and discussed physics with Albert Einstein, Hermann Weyl, Tsung-Dao Lee, Yang Chen-Ning and Isidor Isaac Rabi. She went to Durham, North Carolina and saw Hertha Sponer and Hedwig Kohn, and spent an evening in Washington, DC, with James Chadwick, who was now the head of the British Mission to the Manhattan Project. She also met the project's director, Major General Leslie Groves. She spoke at Smith College, and went to Chicago, where she met Enrico Fermi, Edward Teller, Victor Weisskopf and Leo Szilard. On 8 July, Meitner boarded the RMS Queen Mary for England, where she met with Erwin Schrödinger, Wolfgang Pauli and Max Born. There were belated celebrations for the 300th birthday of Isaac Newton, but the only German invited to attend was Max Planck.