Africa Project Timeline By timidbagel 600 Start 641 Siege of Alexandria 661 Brief Islamic Civil War 800 Ghana Empire Period: 800 to 1700 East African Slave Trade 1040 Almoravid Caliphate 1148 Almohad Caliphate 1235 Mali Empire Period: 1312 to 1332 The reign of Mansa Musa 1420 Mutapa Empire 1450 Great Zimbabwe Period: 1464 to 1592 Songhai Empire Period: 1464 to 1492 The Reign of Sunni Ali Period: 1493 to 1528 The Reign of Askia the Great 1800 End