South Sudan: History
Until 1955, present-day South Sudan is part of Anglo-Egyptian Sudan, which is controlled under joint British-Egyptian rule.
Sudanese president Jaafar Numeiri concedes a measure of autonomy for present-day South Sudan in a peace agreement.
Oil is discovered in present-day South Sudan.
The Sudanese People's Liberation Movement, led by John Garang, starts the second Sudanese civil war against the north in response to the abolishment of South Sudan's autonomy.
In October, an autonomous government is officially formed in South Sudan.
South Sudan is declared independent from Sudan.
The presidents of Sudan and South Sudan agree to trade, oil, and security deals.