Prussian refers to anything related to the historical region of Prussia, which was a significant state in Europe from the 16th century until the end of World War II. It was known for its military prowess, efficient bureaucracy, and contributions to education and culture. The capital of Prussia was Berlin, which later became the capital of modern-day Germany. The term "Prussian" can also describe the people from this region, particularly the Prussian monarchy and its military traditions. Prussia played a crucial role in the unification of Germany in the 19th century, influencing the country's political landscape and identity.