October 20, 1870
Encounters between settlers and Aboriginal people in Queensland, Australia
Riots that took place in New York City
Neogrammarians — linguistic trend of a group of German philologists of the 19th century
1870 last battle of the Paraguayan War
1870 U.S. Navy action against Mexican pirates
1870 first battle of the Franco-Prussian War
1870 battle during the Franco-Prussian War
1870 battle of the Revolution of the Lances
Final event of Italian unification (1870)
1870 battle, part of the defence of Paris during the Franco-Prussian War