Under the French Fourth Republic, Muslim Algerians were accorded the rights of citizenship, but the system of discrimination was maintained in more informal ways. Frederick Cooper writes that Muslim Algerians "were still marginalized in their own territory, notably the separate voter roles of 'French' civil status and of 'Muslim' civil status, to keep their hands on power." The "internal system of apartheid" was met with considerable resistance by the Algerian Muslims affected by it, and it is cited as one of the causes of the 1954 insurrection.