Battle of Yamama
632 CE.
Shown on the map at 24.887°, 46.457°.
The Battle of al-Yamama was fought in December 632 as part of the Ridda Wars against a rebellion within the Rashidun Caliphate in the region of al-Yamama (in present-day Saudi Arabia, South of Riyadh City) between the forces of Abu Bakr and Musaylima, a self-proclaimed prophet. This battle was a part of a multi-prolonged engagement in the plains of Aqrama and the city of Al-Hadiqat.
Text from the Wikipedia article Battle of al-Yamama, licensed CC BY-SA 4.0.