Historians have paid special attention to the efforts by Nazi Germany to reverse the political and social gains that women made before 1933, especially in the relatively liberal Weimar Republic.[15] The role of women in Nazi Germany changed according to circumstances. Theoretically the Nazis believed that women must be subservient to men, avoid careers, devote themselves to childbearing and child-rearing, and be helpmates to the traditional dominant fathers in the traditional family.[16] But, before 1933, women played important roles in the Nazi organisation and were allowed some autonomy to mobilise other women. After Hitler came to power in 1933, the activist women were replaced by bureaucratic women, who emphasised feminine virtues, marriage, and childbirth.