Algeria–Holy See relations
Although Islam is the state religion of Algeria, the Holy See has maintained a comparatively good relationship with the Algerian authorities, with Léon-Étienne Duval being famously recognized as the "bishop of Muslims" after the departure of French colonists.
Christianity in Algeria
After Algeria became independent in 1962, about 800,000 "Pieds-Noirs" of French nationality were evacuated to European France. The majority of those who evacuated were Christian or Jewish. Approximately 200,000 Algerian inhabitants of French nationality chose to remain in Algeria. The number of people with French nationality has continued to decrease over the decades. There were approximately 100,000 in 1965 and about 50,000 by the end of the 1960s.