Circa 2000-1500 BC - Emergence of the Nubian Kingdom of Kush in what is now northern Sudan and Lower Nubia, which stretches to Egypt's Aswan province.
651 - Islam spreads in Sudan from Egypt.
1820-21 - Ottoman Empire conquers northern part of the country.
1899-1955 - Sudan is under joint British-Egyptian rule.
1956 - Sudan becomes independent.
1983 - President Numeiri introduces Sharia Islamic law.
2003 - Start of conflict in Darfur region.
2009 - International Criminal Court issues an arrest warrant for President Omar Bashir on charges of war crimes and crimes against humanity relating to the drawn-out conflict in Darfur.
2011 - South Sudan gains independence following years of war with the central government in Khartoum.