Prussian history refers to the development of the region known as Prussia, which became a significant European power from the 18th to the early 20th century. Initially part of the Teutonic Knights territory, it evolved into a duchy and later a kingdom. Under leaders like Frederick the Great, Prussia expanded its territory and influence, becoming known for its military prowess and efficient bureaucracy. In the 19th century, Prussia played a crucial role in the unification of Germany, leading to the establishment of the German Empire in 1871. The kingdom's emphasis on education and industrialization contributed to its economic strength, but after World War I, it lost its status and was officially dissolved in 1947.