The earliest recorded sentence in Polish appears in the ( Księga henrykowska ) around 1270 .

They served as educational tools for priests who needed to explain Latin liturgy to a Polish-speaking public. Key Vocabulary Sources

For centuries, Latin was the exclusive language of the Church and State in Poland. However, as religious and legal needs grew, the vernacular (the common language) began to surface in the margins of official documents. The First Written Sentence

Known as the "Golden Bull of the Polish language," it contains over 400 Polish names of people and places, providing a linguistic map of the 12th century.