The Nazi regime was particularly hostile towards Jews, who became the target of unending antisemitic propaganda attacks. The Nazis attempted to convince the German people to view and treat Jews as "subhumans" and immediately after winning almost 44% of parliamentary seats in the 1933 federal elections the Nazis imposed a nationwide boycott of Jewish businesses. In March 1933 the first official Nazi concentration camp was established at Dachau in Bavaria and from 1933 to 1935 the Nazi regime consolidated their power. The Law for the Restoration of the Professional Civil Service passed on 7 April 1933, which forced all Jewish civil servants to retire from the legal profession and the civil service. The Nuremberg Laws of 1935 banned sexual relations between Jews and Germans and only those of German or related blood were eligible to be considered citizens; the remainder were classed as state subjects, without citizenship rights. This stripped Jews, Roma and others of their legal rights. Jews continued to suffer persecution under the Nazi regime, exemplified by the Kristallnacht pogrom of 1938, and about half of Germany's 500,000 Jews fled the country before 1939, after which escape became almost impossible.