That Institute soon became a Mecca for theoretical physicists from all over the world, and after 1933 a refuge for a good many scientists who had fled from Hitler's Germany. Their social centre was the mansion "Gamle Carlsberg", given to the nation by the founder of the well-known brewery and placed at Niels Bohr's disposal in 1932.
See instituut peagi sai Meka eest teoreetilise füüsika kogu maailmas, ning pärast 1933 varjupaika hea paljud teadlased, kes on põgenenud Hitleri Saksamaa.