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1963 - The Organisation of African Unity is established in Ethiopia by 32 States.
1981 - African Charter on Human and People's Rights adopted in Nairobi, Kenya.
1991 - The treaty establishing the African Economic Community, AEC, is adopted.
1993 - Adoption of the Mechanism for Conflict Prevention, Management and Resolution.
1999 - An extraordinary OAU summit in Sirte, Libya establishes the African Union.
2000 - The New Partnership for Africa's Development, NEPAD, agreed in Lusaka, Zambia.
2001 - The Lusaka OAU Summit draws up the road map for the AU.
2002 - The Durban OAU Summit launches the AU and convenes AU Heads of State.
2007 - First Ugandan troops land in Mogadishu, the Somali capital ahead of an AU force.
2008 February - Jean Ping elected AU Commission Chairman.
2009 - U.N. begins providing logistical support to AU troops in Somalia.
2010 - Al-Shabab loses over 1,000 men in battles with AU's AMISOM troops.
2011 - South Sudan becomes the AU's 54th member.
2011 August - Al-Shabab militants pull out of Mogadishu.
2012 July - Nkosazana Dlamini-Zuma elected new AU Commission Chairperson.
2012 September - Kenyan forces take over the Somali port city of Kismayo from Al-Shabab.
2013 - Al-Shabab greatly weakened, but continues suicide and roadside bomb attacks.