The Prefecture Apostolic of the Sahara and the Sudan became a Vicariate Apostolic on 6 March 1891, and in 1901 received new boundaries by which the Prefecture Apostolic of Ghardaïa was separated from it.
On March 6, 1891, the Prefecture Apostolic of the Sahara and the Sudan became a Vicariate Apostolic. In 1901, the Vicariate Apostolic gained new borders that divided it from the Prefecture Apostolic of Ghardaïa.