a nine-year course. Hebrew was also taught in some gymnasia. The integration of philosophy, English, and chemistry into the curriculum also set the gymnasium apart from other schools. Prussian secondary schools only received the title "Gymnasium" in 1918, which for some time would be the only path to university study. Due to the rise of German nationalism in the 1900s, the Gymnasium's focus on humanism came under attack, causing it to lose prestige. One of the harshest critics was Friedrich Lange, who assaulted the school's "excessive humanism" and "aesthetic idealism." He argued that they are not aligned with the aims of patriotism, duty, and the idea of Germanhood and that the country's history could also provide the education and insights offered by the models of classical antiquity. During the National Socialism era, it became virtually impossible for girls to study at a Gymnasium according to Hitler's idea, as stated in Mein Kampf, the education of girls should be conditioned only by the task of motherhood. After the Second World War, German education was reformed with the introduction of new system, content, aims, and ethos. The Gymnasium was retained, along with vocational and general schools. Other methods The Realgymnasium offered instead a nine-year course including Latin, but not Greek. Prussian Progymnasien and Realprogymnasien provided six- or seven-year courses, and the Oberschulen later offered nine-year courses with neither Greek nor Latin. Gymnasia for girls The early twentieth century saw an increase in the number of Lyzeum schools for girls, which offered a six-year course. The rising prominence of girls' gymnasia was mainly due to the ascendancy of the German feminist movement in the nineteenth and twentieth centuries, corresponding to the rising demand for women's university education. Co-educational gymnasia have become widespread since the 1970s, and today, single-sex gymnasia are rare in Germany. Historical names given to yeargroups in the German gymnasium When primary school ended with the fourth grade and pupils left German basic secondary schools (Volksschule/Hauptschule or Realschule) at the end of the ninth or tenth grade, the gymnasium used special terms for its grade levels: Modern languages The introduction of French and English as elective languages in the early twentieth century brought about the greatest change to German secondary education since the introduction of the Realschulen in the eighteenth century. Today, German gymnasia teach English, French, or Latin as a compulsory primary foreign language, while the compulsory second foreign language