Battle of Slivnitsa
1885 CE.
Shown on the map at 42.869°, 23.015°.
The Battle of Slivnitsa (Bulgarian: Битка при Сливница, Serbian: Битка на Сливници) was a battle between the Bulgarian Army and the Royal Serbian Army from 17 to 19 November 1885, in the Serbo-Bulgarian War. The Bulgarian victory solidified the unification between the Principality of Bulgaria and Eastern Rumelia.
Text from the Wikipedia article Battle of Slivnitsa, licensed CC BY-SA 4.0.