Compromise of 1850 — compromise on slavery in U.S. territories annexed from Mexico in the Mexican-American war

Treaty between Austria and Prussia 1850

Disturbances at Prison in Fremantle, Western Australia

Ecuadorian and Swedish altercation

1850 diplomatic treaty between Dominican Republic and Great Britain

1850 battle in the First Schleswig War

Violent clashes in Mauritius between 1800–1900

Taiping Rebellion — Qing Dynasty era rebellion (1851–1864)