The <a href="https://en.wikipedia.org/wiki/African_Union" id="mwAag" rel="mw:WikiLink" title="African Union">African Union</a> is established in Addis Ababa, <a href="https://en.wikipedia.org/wiki/Ethiopia" id="mwAak" rel="mw:WikiLink" title="Ethiopia">Ethiopia</a>, replacing the <a href="https://en.wikipedia.org/wiki/Organisation_of_African_Unity" id="mwAao" rel="mw:WikiLink" title="Organisation of African Unity">Organisation of African Unity</a> (OAU). The organization's first chairman is <a href="https://en.wikipedia.org/wiki/Thabo_Mbeki" id="mwAas" rel="mw:WikiLink" title="Thabo Mbeki">Thabo Mbeki</a>, President of <a href="https://en.wikipedia.org/wiki/South_Africa" id="mwAaw" rel="mw:WikiLink" title="South Africa">South Africa</a>.