Unification of Germany — creation of a politically and administratively integrated nation state of German-speaking populations on 18 January 1871, in the form of the German Empire

1871 final military operation of the Franco-Prussian War

Event marking the existence of the German Empire

1871 Mississippi River levee failure and associated flood

1871 Joseon–United States battle

Treaty signed in 1871 between the United Kingdom and United States

Preliminary treaty to end the Franco-Prussian war

First battle of the 1871 Paris Commune

1871 battle during the Paris Commune

1871 battle during the Paris Commune

1871 battle in Southwestern Uruguay