The Herzegovinian rebellion against the Ottoman Empire begins.

The Herzegovina uprising was an uprising led by the Christian Serb population against the Ottoman Empire, firstly and predominantly in Herzegovina, from where it spread into Bosnia and Raška. It broke out in the summer of 1875, and lasted in some regions up to the beginning of 1878. It was followed by the Bulgarian April Uprising of 1876, and coincided with Serbian-Turkish wars (1876–1878), all of those events being part of the Great Eastern Crisis (1875–1878).

The Ottoman Empire, also called the Turkish Empire, was an imperial realm that controlled much of Southeast Europe, West Asia, and North Africa from the 14th to early 20th centuries; it also controlled parts of southeastern Central Europe, between the early 16th and early 18th centuries.