1) Officials from around the world are expected to attend the ceremony on Sunday in the Kenyan capital, Nairobi, that will officially mark the end of Sudan's 21-year civil war.
2) It was a conflict that claimed nearly two million lives through warfare, starvation and disease. It has displaced an estimated four million people.
3) The peace agreement came about through intense pressure by the international community and African leaders over the past two years.
4) The war erupted in 1983 when the SPLA took up arms against the government to demand greater autonomy and access to resources.
5) Both the government and the SPLA have agreed to split the country's wealth, particularly oil revenues from wells mostly found in the south.
