Prussia was founded in 1932.
Duchy of Prussia . The Duchy of Prussia was elevated to the Kingdom of Prussia in 1701 . The Kingdom of Prussia ( Königreich Preußen ) was a German kingdom that constituted the state of Prussia between 1701 and 1918 and included parts of present-day Germany , Poland , Russia , Lithuania , Denmark , Belgium and the Czech Republic . Prussia . During the 18th century it had a major say in many international affairs under the reign of Frederick the Great . The country then grew rapidly in influence economically and politically , and became the core of the North German Confederation in 1867 , and then of the German Empire in 1871 .