Registration
Registration for the vote started on 15 November with Salva Kiir's appeal for registering en masse. Many of those who fled South Sudan during the civil war returned in the months and weeks leading up to the referendum, with some southern politicians trying to have them play a role in swinging the vote towards independence. Almost four million citizens registered before the deadline on 5 December; as the stream of returnees continued unabated, however, many arrived too late to register for the referendum.
Read more about this topic: Southern Sudanese Independence Referendum, 2011