Battle of the 25 of Abu
308 BCE.
Shown on the map at 32.000°, 46.000°.
The battle of the 25 of Abu (10 of August) of 309 B.C. in an unknown location between Babylon and Susa, was the decisive and final clash of the Babylonian war. It ended in a Seleucid victory, and the establishment of the Seleucid kingdom.
Text from the Wikipedia article Battle of the 25 of Abu, licensed CC BY-SA 4.0.