article: List of countries in the 1850s
links: Sikkim Saxe-Altenburg Republic of Haiti Duchy of Nassau French Second Republic Saxe-Coburg-Gotha Second French Empire Republic of Maryland Hohenzollern-Hechingen Tonga Grand Duchy of Tuscany Bolivia Konbaung dynasty Kingdom of Portugal Grand Duchy of Oldenburg Nicaragua Saxe-Meiningen Perak Qajar dynasty Kingdom of Bohemia San Marino Kingdom of Kongo Norway Manipur United States Kingdom of Greece Emirate of Bukhara Kingdom of Nepal Dahomey Bhutan El Salvador Qing Dynasty Samoa Moldavia Negeri Sembilan Kingdom of Koya Kingdom of Hungary Joseon Dynasty Tokugawa shogunate List of sovereign states in the 1840s British Raj Saxe-Weimar-Eisenach Grand Duchy of Hesse Bornu Empire Maldives Kingdom of Hawaii Guatemala Sweden Pahang Fiji List of sovereign states in the 1860s Hohenzollern-Sigmaringen Selangor