In 1946, Annie Romein received a copy of Anne Frank's diary which she tried to have published. When she was unsuccessful, she gave the diary to her husband, who wrote the first article about the diary and its writer, for the newspaper "Het Parool". Interest raised by his article led to the diary being published the following year. Romein was interested in the (auto)biographical approach to history. During the years of German occupation he wrote a book on this, which was published in 1946 (German translation 1948) and is still regarded as an informative and original contribution to the historiography of the genre. Also in 1946, he introduced the theory of history as a subject in the academic curriculum.