10th century in Poland

Bohemian missionary and saint (c.956–997)

battle between Lusatia and Poland in 972

history of the spread of Christianity in Poland

historical region in eastern Poland

meeting between European rulers in year 1000

the oldest known Polish document

Civitas Schinesghe, commonly referred to in historiography as the Duchy of Poland or the Principality of Poland, was the early medieval polity centered around Gniezno and ruled by the Piast dynasty. It emerged in the 10th century and is considered the predecessor state of the Kingdom of Poland, which was formally established in 1025.