The rise of Nazism in Germany prompted a lot of scholars to flee their countries, both given that they had been Jewish or simply because they were political opponents in the Nazi regime. In 1933, the Rockefeller Basis made a fund to help aid refugee academics, and Bohr reviewed this https://digitalesmagazinz.de/warum-jedes-unternehmen-in-eine-hochwertige-sackkarre-investieren-sollte/