text: At the same time , increasing unrest and uprisings by serfs and peasants , like Tylerâ s Rebellion in England in 1381 , put pressure on the nobility and the clergy to reform the system .
simplified: At the same time , there were more protests by serfs and peasants , like Tylerâ s Rebellion in England in 1381 . This put pressure on the nobility and the clergy to change the system and make it better .