While there were full-time librarians in the 18th century, the professionalization of the library role was a 19th-century development, as shown by its first training school, its first university school, and its first professional associations and licensing procedures. In England in the 1870s, a new employment role opened for women in libraries; it was said that the tasks were "Eminently Suited to Girls and Women. " By 1920, women and men were equally numerous in the library profession, but women pulled ahead by 1930 and comprised 80% by 1960. The factors accounting for the transition included the demographic losses of the First World War, the provisions of the Public Libraries Act of 1919, the library-building activity of the Carnegie United Kingdom Trust, and the library employment advocacy of the Central Bureau for the Employment of Women. In the United Kingdom, evidence suggests that the Conservative government began replacing professional librarians with unpaid volunteers in 2015–2016.