For centuries the tribes inhabiting the lands of modern-day Poland have practised various forms of paganism known as ''Rodzimowierstwo'', or "native faith". In the year 966, Duke Mieszko I converted to Christianity, and submitted to the authority of the Roman Catholic Church. This event came to be known as the Baptism of Poland. However, this did not put an end to pagan beliefs in the country. The persistence was demonstrated by a series of rebellions in the 1030s known as the pagan reaction, which also showed elements of a peasant uprising against medieval feudalism.