Suth and North sudan By kailah_beyond Feb 7, 1953 7 feb 1953, independce Jan 1, 1956 capital of sudan is located in the south Nov 1, 2007 9 January referendum was almost unanimous. Over 99% opted for independence in a ballot which was widely accepted as free and fair Sep 21, 2012 Republic of Sudan during 1885 to 2011 Nov 20, 2012 30 January 2011, the results had shown that 98.83% of the population had voted for independence from Sudan Nov 20, 2012 On 28 July 2011, South Sudan joined the African Union as its 54th member state Nov 20, 2012 In March 2012, the Sudanese Air Force bombed areas of the South Sudanese state of Unity, Nov 20, 2012 1811 these Mamluks established a state at Dunqulah as a base for their slave trading. Nov 20, 2012 In 1854 Cairo ended state participation in the slave trade