On April 1, Jewish shops throughout Germany were boycotted. Jewish civil servants were dismissed on April 7. On the same day the exclusion of "non-Aryan" lawyers was ordered. According to a decree of April 22, no Jewish physicians were allowed to work for sick funds anymore. At the end of April another decree restricted the admission of Jewish children and students to schools and universities. In the following months Jews were excluded from working in the fields of art, music, literature and journalism. The "Law on revocation of naturalizations and deprivation of German citizenship" (July, 14) robbed Jews, who had been naturalized before or had been born outside Germany, from their citizenship. In January, 1934, it was decreed that Jews could no longer be members of the Labour Front. When President Hindenburg died, on August 2, 1934, Hitler became President and Supreme Commander of the Army. On May 21, 1935, it was decreed that only "Aryans" could serve in the army. It is estimated that 37,000 Jews emigrated from Germany in 1933; in 1934, the number was 23,000, whilst 21,000 Jews left Germany in 1935. [105] <33> b. The Nuremberg Laws - Crystal Night. (Sept., 1935-Nov., 1938) On September 15, 1935, two fundamental laws were adopted by the Reichstag meeting at Nuremberg. One, the "Law Respecting Reich Citizenship", decreed that only a national of German or kindred blood, who proved by his conduct that he was willing and likely to serve the German people and Reich faithfully, could be a citizen. The second, the "Law for the Protection of German Blood and Honour", specifically referred to the Jews and singled them out as undesirable aliens, impure of blood and dangerous to the honour and security of the German people. There followed seven paragraphs, the first of which dealt with the prohibition of marriages between Jews and nationals of German or kindred blood. Paragraph three prohibited Jews to employ in domestic service female nationals of German or kindred blood, under the age of forty-five years. On April 26, 1938, it was decreed that all Jewish assets in excess of 5,000 marks should be registered. On June 15, 1938, about 1,500 Jews were arrested and deported to a concentration camp. On July 25, it was decreed that Jewish physicians were no longer permitted to treat non-Jewish patients. In the same month, Jews had to apply for special identity cards. On August 17, 1938, the first name "Israel" for Jewish men and "Sara" for Jewish women was made compulsory in addition to their own names. In October, all passports of Jews were stamped with the letter J. Austria had been incorporated into the Third Reich, on March 13, 1938. The German anti-Jewish laws were also enforced in Austria, where about 180,000 Jews were living. It is estimated that 25,000 Jews emigrated from Germany in 1936, and 23,000 in 1937. [106]