Situated between Eastern and Western European cultures and coined by a changing history, Poland developed a rich cultural heritage, including numerous historical monuments and 15 UNESCO World Heritage Sites.
The origin of the name Poland derives from a West Slavic tribe of Polans (Polanie) that inhabited the Warta River basin of the historic Greater Poland region in the 8th century.
The Golden Liberty of the nobles began to develop under Casimir's rule, when in return for their military support, the king made a series of concessions to the nobility, and establishing their legal status as superior to that of the townsmen.
When Casimir the Great died in 1370, leaving no legitimate male heir, the Piast dynasty came to an end.
However, the transition from paganism was not a smooth and instantaneous process for the rest of the population as evident from the pagan reaction of the 1030s.