The history of Prussia can be divided into four periods. First period in until XIII century. Those are times when those lands were occupied by Prussian tribes. Those tribes were trading on a regular basis with Roman Empire and the visitors from Britain. In their chronicles this country is described as rich and hospitable. The sign of the dawn of those times comes with the arrival of Christian missionary, known later as Saint Edelbert. Initially the newcomer is welcomed with hospitality, but his strange and importunate behavior irritates the elders and priests of the tribe, fearing of for their social position. The missionary refusing to leave is killed by Prussians. This is the end of the first period of the history of Prussia.

   The next period starts with forced conversion of Christianity of those lands. It begins with prince Conrad of Masovia asking the Teutonic Order to support him in his battles with Prussian tribes. The order supported by western European knighthood conquers those lands and establishes here the country of the Teutonic Order. The settlers start coming to those lands - the German (to West Prussia) and the Masovians (to East Prussia). The towns and castles are being built on the remains of Prussian settlements. The country in this form lasts until XVI century, almost all the time fighting with all its neighbors.

   The year of 1525 begins the next period - the order becomes a vassal of Poland and Lithuania. Converts from catholic to protestant, what deprives them of support of western European catholic countries. The new country with times grows in strength, becomes a duchy, then a kingdom, and in XVIII century takes part in partitioning of Poland.

   In 1945 with the end of World War II, as a result of Potsdam Conference, the Prussia is divided between Poland and Soviet Union, and after its fall also between Lithuania, Latvia and Russia. And those borderlines stay the same to this day.