The Middle Ages ended, according to common wisdom, in the "calamitous fourteenth century." It is true that the period from 1250 to 1450 saw warfare, social tensions and peasant revolts, papal schism and disillusionment with the church, not to mention the Black Death. However, these two centuries also saw the strengthening of national monarchies, an outpouring of artistic innovation and the rise of vernacular literatures, new forms of piety and worship, as well as exploration and economic innovation.