Sack of Katunga or Old Oyo
1830 CE.
Shown on the map at 8.000°, 4.000°.
The Sack of Old Oyo, also known as the Sack of Katunga, refers to the destruction and abandonment of Old Oyo, the capital and largest city of the Oyo Empire, in the 1830s, during the period of the Fula jihads in West Africa. The event was a turning point between the Ilorin Emirate and its ally the Sokoto Caliphate and the Yoruba Oyo Empire in modern-day Oyo, Nigeria.
Text from the Wikipedia article Sack of Old Oyo, licensed CC BY-SA 4.0.