Asaba massacre
1967 CE.
Shown on the map at 6.198°, 6.729°.
The Asaba massacre occurred on 5-7 October 1967 in Asaba, Delta State, Nigeria during the Nigerian Civil War. The massacre targeted the people of Asaba, mostly composed of Igbo people, and was perpetrated by the Nigerian Army - specifically the Second Infantry Division under the command of Murtala Muhammed. An estimated 500-800 people were killed.
Text from the Wikipedia article Asaba massacre, licensed CC BY-SA 4.0.