1898-1955: British-Egyptian rule.
1955: UK creates North-South divide.
1956: Independence.
1958: Military coup.
1963: Guerilla uprising in South.
1964-1965: New government.
1969: Military coup. North backed by Soviets, South by West et al.
1972: Autonomy for South.
1978: Oil discovered in South.
1983: Civil war again.
1985: Bloodless coup.
1989: Coup ends peace plan.
1991: Drought and aid cut.
1995: UN sanctions. Expanded war.
1998: Famine. US attack.
2001: UN sanctions lifted. USA sanctions increased.
2002: Shaky ceasfire.
2003: More fighting.
2004: Worst humanitarian crisis.