[1] During World War II he directed the Free French propaganda radio broadcasts to Europe.
[2] After the war he helped create France's state-owned publishing house, La Documentation Française.
[4] Through his uncle, Crémieux met and was influenced by the anti-authoritarian surrealism of André Malraux and the liberal internationalism of Stefan Zweig.
But it was first during a school vacation in 1931 that he visited Germany and in subsequent trips saw first-hand the work of the Nazi Party.
In 1935, he joined, and became the youngest member of the Comité de vigilance des intellectuels antifascistes (CVIA) which spearheaded the unification of left-wing politics in France.