By the time Fritz was born, the Habers had to some extent assimilated into German society. Fritz attended primary school at the Johanneum School, a "simultaneous school" open equally to Catholic, Protestant, and Jewish students. At age 11, he went to school at the St. Elizabeth classical school, in a class evenly divided between Protestant and Jewish students. His family supported the Jewish community and continued to observe many Jewish traditions, but were not strongly associated with the synagogue. Fritz Haber identified strongly as German, less so as Jewish.