In the midst of the Cold War, in April 1974, a delegation from the Max Planck Society, headed by the President at that time, Reimar Lüst, dared to go into unchartered territory. They returned with mutual verbal promises to exchange scientists. Even before the Second World War, many Chinese scientists had studied and done research in Germany. This connection was something that the Max Planck Society wanted to pick up on. The first official visit by the Chinese Academy of Sciences (CAS) to Germany was led by Prof. Zhou Peiyuan, who had even studied under Albert Einstein.