Oren neu dag — Public Domain, Wikimedia Commons 1622 Portuguese forces defeated the Kingdom of Kongo at the Battle of Mbumbi in what is now Angola.
BattleOn this day — December 18 in African history
Real events, births and milestones from Africa and the diaspora.
Oren neu dag — Public Domain, Wikimedia Commons 1622 
Cape Argus — Public Domain, Wikimedia Commons Steve Biko, the South African anti-apartheid activist who founded the Black Consciousness Movement, was born.
Birth
Orlovic, using NASA imagery — Public Domain, Wikimedia Commons 2005 The Chadian Civil War began when rebel groups launched an attack on the town of Adré.
Politics
Marcos Elias de Oliveira Júnior — Public Domain, Wikimedia Commons 1958 Niger proclaimed itself a self-governing republic within the French Community, a date now marked as Republic Day.
Independence
Pedro Aragão — CC BY-SA 3.0, Wikimedia Commons (aircraft of the same type involved) 1995 A Lockheed Electra operated by Trans Service Airlift crashed in Jamba, Angola, killing 141 people.
Tragedy