History
The Piast monarchy
The early state
The terms Poland and Poles appear for the first time in medieval chronicles of the late 10th century. The land that the Poles, a West Slavic people, came to inhabit was covered by forests with small areas under cultivation where clans grouped themselves into numerous tribes. The dukes (dux) were originally the commanders of an armed retinue (drużyna) with which they broke the authority of the chieftains of the clans, thus transforming the original tribal organization into a territorial unit. Two tribes, the Polanie—based around the fortified settlement (castrum) of Gniezno—and the Wiślanie—who lived near Kraków—expanded to bring other tribes under their control.
Exposed to some missionary activities linked with St. Methodius, the state of Wiślanie fell under the rule of Great Moravia—which was destroyed by the Magyar invasion of the early 10th century—and came eventually under the rule of Mieszko I, the first ruler of the Polanie to be mentioned in written records. He is regarded as the founder of the Piast dynasty, the beginnings of which are clouded in legend, though the names of three of his predecessors are known. Creating what a contemporary Spanish-Jewish traveler, Ibrāhīm ibn Yaʾḳūb, described as the most powerful of the existing Slav states, Mieszko accepted Roman Catholicism via Bohemia in 966. A missionary bishopric directly dependent on the papacy was established in Poznań. This was the true beginning of Polish history, for Christianity was a carrier of Western civilization with which Poland was henceforth associated.
Facing the crucial problem of Poland’s relationship to the two pillars of medieval Christendom, the Germanic Holy Roman Empire and the papacy, Mieszko battled the expansive tendencies of the former—a record that dates from 963 refers to a struggle with the German dukes—while he sought reliance on Rome, to which he subordinated his state in a curious document, the Dagome iudex (c. 991). Poland alternately competed and cooperated with neighbouring Bohemia and Hungary as well as with the principality of Kievan Rus. At Mieszko’s death the Polish state stretched from the Baltic Sea to the Carpathian Mountains, resembling in shape post-World War II Poland.
Because the principle of primogeniture was unknown in the country, every succession led to internal strife. Mieszko’s successor was Bolesław I (the Brave). Commanding a huge military force, he sought hegemony in east-central Europe. In 1000 he received the Holy Roman Emperor Otto III, who dreamed of restoring a universal Roman empire and who recognized the sovereign status of the Polish duke. Moreover, Otto agreed to an independent Polish ecclesiastical organization that added an archbishopric in Gniezno and bishoprics in Kraków, Wrocław, and Kołobrzeg to the already extant bishopric in Poznań. Given the role of the church in medieval statehood, this was a great achievement. Paying their respects to St. Adalbert (Vojtěch)—the former bishop of Prague slain by the pagan Prussians and later elevated to sainthood—the two rulers sought to coordinate their missionary activities in the pagan Slav lands between the Elbe and Oder rivers. This area, home of the so-called Polabian Slavs, formed a kind of buffer between the two states and was the object of their respective expansion.
The successors of Otto pursued German objectives rather than imperial mirages and struggled with Bolesław, who briefly occupied Bohemia and intervened in Kievan Rus. Polish-German strife continued intermittently until 1018. In 1025 Bolesław assumed the royal crown, which made him the equal of the other monarchs of Europe.