Franco-Prussian War: The Battle of Mars-la-Tour is fought, resulting in a Prussian victory.

The Franco-Prussian War, occasionally known as the Franco-German War, and sometimes referred to in France as the War of 1870, was a conflict between France and the North German Confederation led by Prussia. Lasting from 19 July 1870 to 28 January 1871, the conflict was caused primarily by France's…