Events of the Mid-Century Revolutions and Wars, 1848 to 1859

The Taiping Rebellion was a large-scale revolt, waged from 1851 until 1864

The Apache Wars were a series of armed conflicts between the United States Army and various Apache tribal confederations fought in the southwest between 1849 and 1886, though minor hostilities continued until as late as 1924.

The Indian Rebellion of 1857 was a major uprising in India in 1857-58 against the rule of the British East India Company, which functioned as a sovereign power, including military forces, on behalf of the British Crown.

The Crimean War was fought between Russia and an alliance of the Ottoman Empire, France, the United Kingdom, and Sardinia from October 1853 to February 1856.

The Second Opium War (simplified Chinese: 第二次鸦片战争; traditional Chinese: 第二次鴉片戰爭), also known as the Second Anglo-Chinese War or Arrow War, was fought between the United Kingdom and France against the Qing dynasty of China between 1856 and 1860.

The Reform War (17 December 1857-11 January 1861) or War of Reform (Spanish: Guerra de Reforma), also known as the Three Years' War (Spanish: Guerra de los Tres Años) and the Mexican Civil War, was a complex civil conflict in Mexico that was fought between Mexican liberals and conservatives with regional variations over the promulgation of the Constitution of 1857.