Battle of Amiens
1870 CE.
Shown on the map at 49.867°, 2.521°.
The Battle of Amiens, also known as the Battle of Villers-Bretonneux, was fought on 27 November 1870 between French and Prussian forces during the Franco-Prussian War (1870–1871). It ended in a Prussian victory, forcing the French to retreat and allowing the Prussians to capture Amiens, France.
Text from the Wikipedia article Battle of Amiens (1870), licensed CC BY-SA 4.0.