Baptism of Poland Day (Święto Chrztu Polski) is observed in Poland every April 14 to commemorate the baptism of Mieszko I, which took place on April 14, 966. This event is significant as it marked the beginning of the Christianization of Poland and the emergence of the Polish state, Civitas Schinesghe. The holiday was declared a public holiday in 2019, emphasizing the importance of baptism in Polish national identity. Although it is a holiday, it is not a work-free day unless it falls on a weekend. The baptism, which occurred during Mieszko's reign, was influenced by his Christian wife, Doubravka, and took place in a location disputed between Gniezno and Poznań. The spread of Christianity in Poland was a gradual process that continued for centuries, ultimately leading to Poland being recognized as an established Christian state by the Pope and the Holy Roman Empire.