Switzerland must have seemed like paradise to him. After one and a half years in POW camp in Germany, Jean Chopin, a twenty-five-year-old French infantryman, was allowed to leave for neutral Switzerland in the spring of 1916. Finally, after an interruption of almost three years, he was able to take up his academic studies again in the autumn of 1917.
After the Kingdom of Egypt had formally achieved independence in 1922, the Egyptian government tried to suppress British influence in the country. In 1928, as part of these efforts, in 1928 the government requested the Swiss Federal Council to send an ETH professor
During the Second World War, the Swiss government actively included ETH Zurich in its plans to promote an autonomous national aviation industry in Switzerland. The Federal Office of Aviation (now the Federal Office of Civil Aviation (FOCA)) commissioned Professor Eduard