Battle of Blood River Poort
1901 CE.
Shown on the map at -27.767°, 30.533°.
In the Battle of Blood River Poort or Scheeper's Nek on 17 September 1901 a Boer commando led by Louis Botha crushed a British force commanded by Major Hubert Gough during the Second Boer War.
Text from the Wikipedia article Battle of Blood River Poort, licensed CC BY-SA 4.0.