Franco-Prussian War: The siege of Paris begins. The city held out for over four months before surrendering.

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…