Christianization of Poland

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The Christianization of Poland^[1] (Polish: chrystianizacja Polski)^[2] refers to the introduction and subsequent spread of Christianity in Poland.^[3] The impetus to the process was the Baptism of Poland (Polish: chrzest Polski), the personal baptism of Mieszko I, the first ruler of the future Polish state, and much of his court. The ceremony took place on Holy Saturday, 14 April 966 (under the Julian pre-Gregorian calendar, equivalent to 19 April 966 Gregorian), although the exact location is disputed by historians, with the cities of Poznań and Gniezno being the most likely sites. Mieszko's wife, Dobrawa of Bohemia, is often seen as a major influence on Mieszko's decision to accept Christianity.

While the spread of Christianity in Poland took centuries to finish, the process was ultimately successful, as within several decades Poland joined the rank of established European states recognised by the papacy and the Holy Roman Empire. According to historians, the baptism of Poland marks the beginning of Polish statehood.^[4] Nevertheless, the Christianization was a long and arduous process, as most of the Polish population remained pagan until the pagan reaction during the 1030s.