Similarly one may ask, why did Sudan and South Sudan separate?
Sudan, once the largest and one of the most geographically diverse states in Africa, split into two countries in July 2011 after the people of the south voted for independence. Sudan has long been beset by conflict.
Furthermore, what was South Sudan before? Prior to 2011, South Sudan was part of Sudan, its neighbour to the north. South Sudan was settled by many of its current ethnic groups during the 15th–19th centuries. After the Sudan region was invaded in 1820 by Muḥammad ʿAlī, viceroy of Egypt under the Ottoman Empire, the southern Sudan was plundered for slaves.
Furthermore, when was South Sudan established?
July 9, 2011
Is Sudan an Arab country?
Sudan is part of the contemporary Arab world—encompassing North Africa, the Arabian Peninsula and the Levant—with deep cultural and historical ties to the Arabian Peninsula that trace back to ancient times.